Space Calendar (JPL)

Space Calendar
JPL/Caltech
Space Calendar graphic

2020
[ Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec ]

2021
[ Jan | Feb | Mar ]

Welcome to the Space Calendar!

Created in 1994, this Space Calendar covers space-related activities and anniversaries for the coming year. Included are over 5,800 links to related websites. This Calendar is compiled and maintained by Ron Baalke. Please send any updates or corrections to baalke@zagami.jpl.nasa.gov.

This Month's Contributors to the Space Calendar
Space Calendar Archives (2016, 2017, 2018, 2019, 2020)

Note that launch dates are subject to change at any time. Also, anniversary dates are listed in 5 year increments only.

January 2020

Jan 25 - Chinese New Year
Jan 25 - Comet P/2002 S7 (SOHO) Perihelion (0.049 AU)
Jan 25 - Comet P/2002 S7 (SOHO) Closest Approach To Earth (0.937 AU)
Jan 25 - Comet 387P/Boattini Closest Approach To Earth (1.311 AU)
Jan 25 - Comet 137P/Shoemaker-Levy At Opposition (2.793 AU)
Jan 25 - Comet C/2018 V4 (Africano) At Opposition (3.972 AU)
Jan 25 - Comet P/2018 V5 (Trujillo-Sheppard) At Opposition (4.380 AU)
Jan 25 - Apollo Asteroid 2020 BF6 Near-Earth Flyby (0.0005 AU)
Jan 25 - Apollo Asteroid 2020 BP12 Near-Earth Flyby (0.009 AU)
Jan 25 - Apollo Asteroid 2020 BW10 Near-Earth Flyby (0.016 AU)
Jan 25 - Apollo Asteroid 2020 BK8 Near-Earth Flyby (0.020 AU)
Jan 25 - Aten Asteroid 2020 AK3 Near-Earth Flyby (0.022 AU)
Jan 25 - Amor Asteroid 2020 BZ10 Near-Earth Flyby (0.042 AU)
Jan 25 - Asteroid 11195 Woomera Closest Approach To Earth (1.079 AU)
Jan 25 - Asteroid 5382 McKay Closest Approach To Earth (1.530 AU)
Jan 25 - Star Gazing at the Marsh Event, Collier-Seminole State Park, Naples, Florida
Jan 25 - Star Party, Palo Duro Canyon State Park, Canyon, Texas
Jan 25 - Winter Stargazing, Lockhart State Park, Lockhart, Texas
Jan 25-26 - UK SEDS Terra Nova Hackathon, Edinburgh, United Kingdom
Jan 26 - Comet P/2019 X2 (PANSTARRS) At Opposition (0.942 AU)
Jan 26 - Comet 22P/Kopff At Opposition (3.919 AU)
Jan 26 - Asteroid 21 Lutetia Occults TYC 0026-00576-1 (11.6 Magnitude Star)
Jan 26 - Apollo Asteroid 2020 BH3 Near-Earth Flyby (0.013 AU)
Jan 26 - Apollo Asteroid 2020 BX9 Near-Earth Flyby (0.021 AU)
Jan 26 - Apollo Asteroid 2020 BZ14 Near-Earth Flyby (0.022 AU)
Jan 26 - Apollo Asteroid 2020 BE8 Near-Earth Flyby (0.029 AU)
Jan 26 - Apollo Asteroid 2020 BY5 Near-Earth Flyby (0.030 AU)
Jan 26 - Amor Asteroid 2020 BE9 Near-Earth Flyby (0.045 AU)
Jan 26 - Asteroid 4766 Malin Closest Approach To Earth (1.315 AU)
Jan 26 - Asteroid 5430 Luu Closest Approach To Earth (1.610 AU)
Jan 26 - Asteroid 10867 Lima Closest Approach To Earth (1.612 AU)
Jan 26 - Amor Asteroid 3551 Verenia Closest Approach To Earth (1.732 AU)
Jan 26 - 15th Anniversary (2005), Mike Brown, et al's Discovery of Haumea Moon Hi'laka
Jan 26 - 40th Anniversary (1980), Voyager 1 Confirms Saturn Moons Epimetheus & Janus are Co-orbitals
Jan 27 - Mars 2020 Rover Naming Contest Ends
Jan 27 - Venus Passes 0.07 Degrees From Neptune
Jan 27 - Comet 371P/LINEAR-Skiff At Opposition (2.974 AU)
Jan 27 - Comet 99P/Kowal At Opposition (4.526 AU)
Jan 27 - Apollo Asteroid 2020 BA13 Near-Earth Flyby (0.001 AU)
Jan 27 - Apollo Asteroid 2020 CL Near-Earth Flyby (0.014 AU)
Jan 27 - Apollo Asteroid 2020 BN3 Near-Earth Flyby (0.018 AU)
Jan 27 - Apollo Asteroid 2020 BY4 Near-Earth Flyby (0.018 AU)
Jan 27 - Apollo Asteroid 2020 CE1 Near-Earth Flyby (0.032 AU)
Jan 27 - Apollo Asteroid 2006 QV89 Closest Approach To Earth (0.217 AU)
Jan 27 - Asteroid 50240 Cortina Closest Approach To Earth (1.298 AU)
Jan 27 - Asteroid 96205 Ararat Closest Approach To Earth (1.594 AU)
Jan 27 - Asteroid 249516 Aretha Closest Approach To Earth (2.013 AU)
Jan 27 - Plutino 208996 (2003 AZ84) At Opposition (43.378 AU)
Jan 27 - Astro2020 Teleconference: Panel on Cosmology Report Development
Jan 27 - Colloquium: The Degree of Fine-Tuning in our Universe, Tucson, Arizona
Jan 27 - 200th Anniversary (1820), 1st Sighting of Antarctica Main Land Mass
Jan 27-29 - Astro2020 Meeting: Panel on Electromagnetic Observations from Space
Jan 27-30 - 66th Reliability and Maintainability Symposium (RAMS 2020), Palm Springs, California
Jan 27-31 - Workshop: The Cosmic Web in the Local Universe, Leiden, The Netherlands
Jan 27-31 - 2020 Sun-Climate Symposium, Tucson, Arizona
Jan 27-31 - Workshop: Next-Generation Cosmology with Next-Generation Radio Telescopes II, Sexten, Italy
Jan 27-31 - School on Observing The First Billion Years of the Universe Using Next Generation Telescopes, Indore, India
Jan 28 - Comet 222P/LINEAR At Opposition (1.854 AU)
Jan 28 - Comet 1P/Halley At Opposition (33.976 AU)
Jan 28 - Apollo Asteroid 2020 BJ7 Near-Earth Flyby (0.003 AU)
Jan 28 - Apollo Asteroid 2020 BA15 Near-Earth Flyby (0.003 AU)
Jan 28 - Apollo Asteroid 2020 BK13 Near-Earth Flyby (0.004 AU)
Jan 28 - Apollo Asteroid 2020 BG13 Near-Earth Flyby (0.006 AU)
Jan 28 - Aten Asteroid 2020 CB Near-Earth Flyby (0.007 AU)
Jan 28 - Apollo Asteroid 2020 CM Near-Earth Flyby (0.015 AU)
Jan 28 - Apollo Asteroid 2020 BJ14 Near-Earth Flyby (0.022 AU)
Jan 28 - Apollo Asteroid 2020 BO2 Near-Earth Flyby (0.027 AU)
Jan 28 - Apollo Asteroid 2020 CP Near-Earth Flyby (0.028 AU)
Jan 28 - Asteroid 2020 BG9 Near-Earth Flyby (0.032 AU)
Jan 28 - Asteroid 1896 Beer Closest Approach To Earth (1.640 AU)
Jan 28 - Asteroid 508 Princetonia Closest Approach To Earth (2.228 AU)
Jan 28 - Amor Asteroid 719 Albert Closest Approach To Earth (2.687 AU)
Jan 28 - Lecture: Climate Change & Renewable Energy - The Solutions and Their Problems, Wrexham, United Kingdom
Jan 28 - Lecture: Differential Rotation in Convecting Stars, Ithaca, New York
Jan 28 - Gyorgy Kulin's 115th Birthday (1905)
Jan 28-30 - ExoSystems Workshop, Paris, France
Jan 28-30 - Conference: Space VLBI 2020 - Science and Technology Futures, Charlottesville, Virginia
Jan 28-30 - 4th PSTEP International Symposium (PSTEP-4)/2nd ISEE Symposium: Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure, Nagoya, Japan
Jan 28-31 - 5th IAA Conference on University Satellite Missions and CubeSat Workshop, Rome, Italy
Jan 28-Feb 04 - Webinar: Applications of GPM IMERG Reanalysis for Assessing Extreme Dry and Wet Periods
Jan 29 - Starlink 4 (60) Falcon 9 Launch, Successul
Jan 29 - Parker Solar Probe, 4th Perihelion
Jan 29 - Comet C/2019 T5 (ATLAS) Closest Approach To Earth (2.057 AU)
Jan 29 - Comet 353P/McNaught At Opposition (3.973 AU)
Jan 29 - Asteroid 3 Juno Occults UCAC4 425-058406 (12.3 Magnitude Star)
Jan 29 - Apollo Asteroid 2020 BZ13 Near-Earth Flyby (0.0007 AU)
Jan 29 - Apollo Asteroid 2020 BL13 Near-Earth Flyby (0.012 AU)
Jan 29 - Apollo Asteroid 2020 BJ1 Near-Earth Flyby (0.040 AU)
Jan 29 - Asteroid 6433 Enya Closest Approach To Earth (1.313 AU)
Jan 29 - Uranus Trojan 2014 YX49 At Opposition (19.436 AU)
Jan 29 - 14 Ilan Ramon International Space Conference, Tel Aviv, Israel
Jan 29 - Colloquium: Searching for Potentially Earth-Impacting Asteroids and Comets, Greenbelt, Maryland
Jan 29 - Colloquium: Interpreting the Results of Large, Multi-molecular-line Datasets of the ISM, Sydney, Australia
Jan 29 - Lubos Kohoutek's 85th Birthday (1935)
Jan 29 - Karl Heimberg's 110th Birthday (1910)
Jan 29 - Philibert Jacques Melotte's 140th Birthday (1880)
Jan 29 - Lawrence Hargrave's 170th Birthday (1850)
Jan 29-30 - 23rd Annual Commercial Space Transportation Conference, Washington DC
Jan 29-31 - 5th IAA Conference on University Satellite Missions and CubeSat Workshop, Rome, Italy
Jan 29-31 - 2020 Particle Physics Meeting, Palaiseau, France
Jan 30 - Spitzer Space Telescope, End of Mission
Jan 30 - NASA Day of Remembrance
Jan 30 - NROL-151 Electron Launch, Successful
Jan 30 - Comet 138P/Shoemaker-Levy Closest Approach To Earth (1.937 AU)
Jan 30 - Comet P/2012 G1 (PANSTARRS) At Opposition (2.371 AU)
Jan 30 - Comet P/2018 P3 (PANSTARRS) Closest Approach To Earth (2.530 AU)
Jan 30 - Comet 258P/PANSTARRS At Opposition (2.547 AU)
Jan 30 - Comet 368P/NEAT At Opposition (3.518 AU)
Jan 30 - Apollo Asteroid 2020 CY Near-Earth Flyby (0.009 AU)
Jan 30 - Aten Asteroid 2020 BL11 Near-Earth Flyby (0.012 AU)
Jan 30 - Apollo Asteroid 2020 CS Near-Earth Flyby (0.012 AU)
Jan 30 - Apollo Asteroid 2020 BV7 Near-Earth Flyby (0.015 AU)
Jan 30 - Apollo Asteroid 2020 CC1 Near-Earth Flyby (0.030 AU)
Jan 30 - Aten Asteroid 2020 BP11 Near-Earth Flyby (0.031 AU)
Jan 30 - Apollo Asteroid 2015 DJ155 Near-Earth Flyby (0.039 AU)
Jan 30 - Apollo Asteroid 2018 AL12 Near-Earth Flyby (0.047 AU)
Jan 30 - Asteroid 11083 Caracas Closest Approach To Earth (1.272 AU)
Jan 30 - Asteroid 7816 Hanoi Closest Approach To Earth (1.309 AU)
Jan 30 - Asteroid 3665 Fitzgerald Closest Approach To Earth (1.444 AU)
Jan 30 - Asteroid 5811 Keck Closest Approach To Earth (2.386 AU)
Jan 30 - Asteroid 73511 Lovas Closest Approach To Earth (2.437 AU)
Jan 30 - Asteroid 2688 Halley Closest Approach To Earth (2.590 AU)
Jan 30 - Lecture: Insights on Saturn from the Cassini Space Probe, Palo Alto, California
Jan 30 - Colloquia: Detecting and Characterizing Nearby Habitable Worlds, Ithaca, New York
Jan 30 - Lecture: Adventures in Developing Space Technology, Chelmsford, United Kingdom
Jan 30 - Lecture: Gravity - Jet Powered Suits, York, United Kingdom
Jan 30 - Seminar: Highly Magnified Cosmological Sources in Galaxy Cluster Lenses, Barcelona, Spain
Jan 30 - Webinar: DARPA's Ocean of Things Program
Jan 30-Feb 05 - 43rd Annual AAS Guidance, Navigation and Control Conference, Breckenridge, Colorado
Jan 31 - Comet P/2019 Y2 (Fuls) Perihelion (2.125 AU)
Jan 31 - Comet 101P-B/Chernykh Perihelion (2.350 AU)
Jan 31 - Apollo Asteroid 2020 CJ Near-Earth Flyby (0.002 AU)
Jan 31 - Apollo Asteroid 2020 CZ Near-Earth Flyby (0.002 AU)
Jan 31 - Aten Asteroid 2020 BZ4 Near-Earth Flyby (0.015 AU)
Jan 31 - Apollo Asteroid 2020 BR8 Near-Earth Flyby (0.025 AU)
Jan 31 - Asteroid 13513 Manilla Closest Approach To Earth (1.230 AU)
Jan 31 - Asteroid 38237 Roche Closest Approach To Earth (1.413 AU)
Jan 31 - Seminar: Corpuscular Scaling Relations in Bootstrapped Newtonian Gravity, Barcelona, Spain
Jan 31 - Lecture: Galaxies are Cosmic Magnets, Pasadena, California
Jan 31 - 5th Anniversary (2015), SMAP Launch
Jan 31 - Dan Milisavljevic's 40th Birthday (1980)
Jan 31-Feb 01 - European Astrofest 2020, London, United Kingdom
Jan 31-Feb 02 - Queen's Space Conference (QSC 2020): Tour the Universe, Kingston, Canada
Jan 31-Feb 02 - International Space University (ISU) Adelaide Conference, Adelaide, Australia

February 2020

Feb ?? - Blacksky Global 5-8 SSLV-D2 Launch
Feb 01 - Comet 258P/PANSTARRS Closest Approach To Earth (2.546 AU)
Feb 01 - Comet 14P/Wolf At Opposition (3.877 AU)
Feb 01 - Comet 99P/Kowal Closest Approach To Earth (4.522 AU)
Feb 01 - Apollo Asteroid 2020 CW Near-Earth Flyby (0.0001 AU)
Feb 01 - Apollo Asteroid 2020 BN12 Near-Earth Flyby (0.009 AU)
Feb 01 - Aten Asteroid 2020 CD1 Near-Earth Flyby (0.019 AU)
Feb 01 - Apollo Asteroid 2017 AE5 Near-Earth Flyby (0.035 AU)
Feb 01 - Apollo Asteroid 2009 BD Closest Approach To Earth (1.405 AU)
Feb 01 - Asteroid 82332 Las Vegas Closest Approach To Earth (1.549 AU)
Feb 01 - Asteroid 1991 Darwin Closest Approach To Earth (1.730 AU)
Feb 01 - Asteroid 11277 Ballard Closest Approach To Earth (2.044 AU)
Feb 01 - Asteroid 1006 Lagrangea Closest Approach To Earth (2.354 AU)
Feb 01 - Asteroid 22338 Janemojo Closest Approach To Earth (2.698 AU)
Feb 01 - Educators Workshop: Rocketry and Flight, Pasadena, California
Feb 01 - Dinosaur Valley State Park Star Party, Glen Rose, Texas
Feb 01 - Griffith Observatory Public Star Party, Los Angeles, California
Feb 01 - Event: An Evening Under the Stars, Big Lagoon State Park, Pensacola, Florida
Feb 01 - San Antonio Astronomical Association Star Party, Guadalupe River State Park, Spring Branch, Texas
Feb 01 - Catalina State Park Star Party, Catalina State Park, Tucson, Arizona
Feb 01 - Gaze at the Galaxy, Colorado Bend State Park, Bend, Texas
Feb 01 - 50th Anniversary (1970), Argentina X-1 Panther Rocket Launch (Carried Cai Monkey)
Feb 01 - Lloyd Berkner's 115th Birthday (1905)
Feb 01 - Emilio Segre's 115th Birthday (1905)
Feb 02 - Moon Occults Asteroid 4 Vesta
Feb 02 - Comet 374P/Larson Closest Approach To Earth (2.755 AU)
Feb 02 - Comet 302P/Lemmon-PANSTARRS At Opposition (4.202 AU)
Feb 02 - Comet C/2016 X1 (Lemmon) Closest Approach To Earth (6.870 AU)
Feb 02 - Aten Asteroid 2020 CA Near-Earth Flyby (0.001 AU)
Feb 02 -[Feb 20] Apollo Asteroid 2020 DO1 Near-Earth Flyby (0.037 AU)
Feb 02 - Apollo Asteroid 2020 BD9 Near-Earth Flyby (0.042 AU)
Feb 02 - Apollo Asteroid 2018 BU1 Near-Earth Flyby (0.049 AU)
Feb 02 - Asteroid 12820 Robinwilliams Closest Approach To Earth (2.003 AU)
Feb 02-05 - Workshop: Science with the Atacama Pathfinder Experiment (APEX), Ringberg Castle, Germany
Feb 02-07 - MODEST 20 Conference: Dense Star Clusters in the Era of Large Surveys, Mumbai, India
Feb 03 - Hyperbolic Object A/2020 A1 Closest Approach To Earth (0.900 AU)
Feb 03 - Comet C/2019 Y4 (ATLAS) At Opposition (1.609 AU)
Feb 03 - Comet P/2018 VN2 (Leonard) At Opposition (3.481 AU)
Feb 03 - Apollo Asteroid 2020 BT14 Near-Earth Flyby (0.001 AU)
Feb 03 - Apollo Asteroid 2020 CK Near-Earth Flyby (0.004 AU)
Feb 03 - Apollo Asteroid 2020 CQ Near-Earth Flyby (0.010 AU)
Feb 03 - Apollo Asteroid 2020 BX12 Near-Earth Flyby (0.029 AU)
Feb 03 -[Feb 20] Apollo Asteroid 2020 DS1 Near-Earth Flyby (0.029 AU)
Feb 03 - Atira Asteroid 2010 XB11 Closest Approach To Earth (0.820 AU)
Feb 03 - Asteroid 2362 Mark Twain Closest Approach To Earth (1.479 AU)
Feb 03 - Asteroid 11020 Orwell Closest Approach To Earth (2.540 AU)
Feb 03 - Lecture: Revealing the Nature of Exoplanetary Atmospheres, Ithaca, New York
Feb 03 - 10th Anniversary (2010), Iran Kavoshgar 3 Launch (Carried Mouse, 2 Turtles & Worms)
Feb 03 - 25th Anniversary (1995), STS-63 Launch (Space Shuttle Endeavour, ASTRO-2)
Feb 03-04 - Outer Planets Assessment Group (OPAG) Meeting, Houston, Texas
Feb 03-04 - ICCUB Winter Meeting, Barcelona, Spain
Feb 03-05 - James Webb Space Telescope (JWST) Master Class Workshop, Madrid, Spain
Feb 03-05 - Astro2020 Meeting: Panel on Radio, Millimeter and Submillimeter Observations from the Ground, Irvine, California
Feb 03-05 - 3rd Workshop on High Energy Physics, Astrophysics and Cosmology, Istanbul, Turkey
Feb 03-06 - Conference: Inflationary Reheating Meets Particle Physics Frontier, Santa Barbara, California
Feb 03-06 - SmallSat Symposium, Silicon Valley, California
Feb 03-07 - Workshop: The Low Surface Brightness Universe as Seen by LSST, Sexten, Italy
Feb 03-07 - Kavli-IAU Workshop: International Co-ordination of Multi-Messenger Transient Observations in the 2020s and Beyond, Cape Town, South Africa
Feb 03-07 - 3rd Workshop on High Energy Physics, Astrophysics and Cosmology, Istanbul, Turkey
Feb 03-07 - 5th Asia Pacific Solar Physics Meeting (APSPM), Pune, India
Feb 03-07 - SIGRAV International School 2020: General Relativity and Beyond - Astrophysics, Cosmology and Gravitational Waves, Vietri sul Mare, Italy
Feb 03-14 - 57th Session of the Scientific and Technical Subcommittee of the Office of Outer Space Affairs, Vienna, Austria
Feb 03-14 - La Silla Observing Summer School (2020), Santiago, Chile
Feb 04 - Comet 282P/2003 BM80 At Opposition (3.145 AU)
Feb 04 - Comet 267P/LONEOS At Opposition (3.364 AU)
Feb 04 - Comet P/2017 U3 (PANSTARRS) Closest Approach To Earth (3.532 AU)
Feb 04 - Apollo Asteroid 2020 CQ1 Near-Earth Flyby (0.0004 AU)
Feb 04 - Apollo Asteroid 2020 CR Near-Earth Flyby (0.007 AU)
Feb 04 - Apollo Asteroid 2013 BA74 Near-Earth Flyby (0.009 AU)
Feb 04 - Apollo Asteroid 2020 CN Near-Earth Flyby (0.012 AU)
Feb 04 - Apollo Asteroid 2020 CO Near-Earth Flyby (0.029 AU)
Feb 04 - Aten Asteroid 2020 CH1 Near-Earth Flyby (0.039 AU)
Feb 04 - Colloquium: Parker Solar Probe - Understanding Coronal Heating and Solar Wind Acceleration, Tucson, Arizona
Feb 04 - Lecture: Space Applications of GNSS, Nottingham, United Kingdom
Feb 04 - Lecture: Life Beyond Earth, Tucson, Arizona
Feb 04 - Seminar: On the Complexity of Black Holes, Trieste, Italy
Feb 04 - Ludwig Prandtl's 145th Birthday (1875)
Feb 04-05 - Conference: Forests for Biodiversity & Climate Change, Brussels, Belgium
Feb 04-07 - IOTA/ME 2nd Workshop on Photometric Study of Binary Systems and Exoplanet Transits, Adana, Turkey
Feb 04-07 - 12th Coastal Altimetry Workshop, Rome, Italy
Feb 05 - Comet 76P/West-Kohoutek-Ikemura At Opposition (1.068 AU)
Feb 05 - Comet 317P/WISE At Opposition (1.616 AU)
Feb 05 - Comet 218P/LINEAR Closest Approach To Earth (1.813 AU)
Feb 05 - Comet 388P/Gibbs Closest Approach To Earth (1.863 AU)
Feb 05 - Comet P/2017 U3 (PANSTARRS) At Opposition (3.532 AU)
Feb 05 - Apollo Asteroid 2020 CC Near-Earth Flyby (0.005 AU)
Feb 05 - Apollo Asteroid 2020 CT Near-Earth Flyby (0.011 AU)
Feb 05 - Apollo Asteroid 2020 BR11 Near-Earth Flyby (0.027 AU)
Feb 05 - Apollo Asteroid 2020 BY13 Near-Earth Flyby (0.028 AU)
Feb 05 - Asteroid 1432 Ethiopia Closest Approach To Earth (1.863 AU)
Feb 05 - Lecture: Measuring the Speed of Light, London, United Kingdom
Feb 05 - Gabriel Voisin's 140th Birthday (1880)
Feb 05 - Friedrich Winnecke's 185th Birthday (1835)
Feb 05-07 - Workshop: Exoplanets in Our Own Backyard, Houston, Texas
Feb 06 - Soyuz MS-15 Return To Earth, Successful
Feb 06 - OneWeb 2 Soyuz-2.1b/Fregat Launch, Successful
Feb 06 - Comet C/2016 X1 (Lemmon) At Opposition (6.872 AU)
Feb 06 - Apollo Asteroid 2020 CR1 Near-Earth Flyby (0.006 AU)
Feb 06 - Apollo Asteroid 2020 BF10 Near-Earth Flyby (0.007 AU)
Feb 06 - Asteroid 2830 Greenwich Closest Approach To Earth (1.249 AU)
Feb 06 - Amor Asteroid 1980 Tezcatlipoca Closest Approach To Earth (1.876 AU)
Feb 06 - Lecture: Beyond the Pale Blue Dot - Seeing Distant Planets, Pasadena, California
Feb 06 - Colloquia: Is Dark Matter Cold, Warm, or Fuzzy?, Ithaca, New York
Feb 06 - Lecture: Are We Alone? The Search for Life in the Universe, San Francisco, California
Feb 06 - Seminar: Sub-MeV Dark Matter Detection with Superfluid He-4 - An Effective Theory Approach, Trieste, Italy
Feb 06 - Seminar: High Energy Neutrinos From Active Galactic Nuclei, Barcelona, Spain
Feb 06 - Lecture: Studying the Climate - A Challenge of Complexity, London, United Kingdom
Feb 06 - Andrew Claude de la Cherois Crommelin's 155th Birthday (1865)
Feb 06-07 - Global Space and Technology Convention (GSTC), Singapore
Feb 06-07 - National Science Foundation's 70th Anniversary Symposium, Alexandria, Virginia
Feb 06-07 - All-Atlantic Ocean Research Forum, Brussels, Belgium
Feb 07 - Hyperbolic Object A/2020 A1 At Opposition (0.9135 AU)
Feb 07 - Comet C/2019 K8 (ATLAS) At Opposition (3.238 AU)
Feb 07 - Comet 47P/Ashbrook-Jackson At Opposition (3.970 AU)
Feb 07 -[Feb 19] Apollo Asteroid 2020 DV Near-Earth Flyby (0.027 AU)
Feb 07 - Apollo Asteroid 2020 BF11 Near-Earth Flyby (0.043 AU)
Feb 07 - Aten Asteroid 341843 (2008 EV5) Closest Approach To Earth (1.417 AU)
Feb 07 - Asteroid 5107 Laurenbacall Closest Approach To Earth (1.969 AU)
Feb 07 -[Feb 22] Kuiper Belt Object 420356 Praamzius At Opposition (42.039 AU)
Feb 07 - Lunar Exploration Analysis Group (LEAG) Virtual Meeting
Feb 07 - Lecture: Beyond the Pale Blue Dot - Seeing Distant Planets, Pasadena, California
Feb 08 - IGS Optical 7 H-2A Launch, Successful
Feb 08 - Comet 112P/Urata-Niijima Perihelion (1.447 AU)
Feb 08 - Comet 78P/Gehrels At Opposition (2.079 AU)
Feb 08 - Asteroid 6377 Cagney Closest Approach To Earth (1.695 AU)
Feb 08 - Apollo Asteroid 2020 BL8 Near-Earth Flyby (0.017 AU)
Feb 08 -[Feb 21] Apollo Asteroid 2020 DE2 Near-Earth Flyby (0.020 AU)
Feb 08 - Apollo Asteroid 2020 BQ11 Near-Earth Flyby (0.036 AU)
Feb 08 - Apollo Asteroid 1981 Midas Closest Approach To Earth (1.802 AU)
Feb 08 - Asteroid 3140 Stellafane Closest Approach To Earth (2.238 AU)
Feb 08 - 20th Anniversary (2000), STS-130 Launch (Space Shuttle Endeavour, ISS)
Feb 08 - 20th Anniversary (2000), Discovery of GRV 99027 Meteorite (Mars Meteorite)
Feb 08 - Emily Lakdawalla's 45th Birthday (1975)
Feb 08 - Bohdan Paczynski's 80th Birthday (1940)
Feb 08 - Ralph Curtiss' 140th Birthday (1880)
Feb 08 - Henri Giffard's 195th Birthday (1825)
Feb 08 - Daniel Bernoulli's 320th Birthday (1700)
Feb 08-13 - Conference: Galaxy Quenching and Transformation Throughout Cosmic Time, Aspen, Colorado
Feb 09 - Solar Orbiter Atlas 5 Launch, Successful
Feb 09 - Zafar-1 Simorgh Launch, Failed
Feb 09 - Supermoon
Feb 09 - Comet 297P/Beshore At Opposition (2.112 AU)
Feb 09 - Comet P/2018 P3 (PANSTARRS) At Opposition (2.544 AU)
Feb 09 - Hyperbolic Object A/2019 O4 Perihelion (3.645 AU)
Feb 09 - Comet 259P/Garradd At Opposition (2.688 AU)
Feb 09 - Apollo Asteroid 2020 BK10 Near-Earth Flyby (0.005 AU)
Feb 09 - Apollo Asteroid 2020 CJ2 Near-Earth Flyby (0.011 AU)
Feb 09 - Apollo Asteroid 2020 BW5 Near-Earth Flyby (0.013 AU)
Feb 09 -[Feb 19] Apollo Asteroid 2020 DM Near-Earth Flyby (0.014 AU)
Feb 09 -[Feb 18] Aten Asteroid 2020 CV2 Near-Earth Flyby (0.024 AU)
Feb 09 - Asteroid 5553 Chodas Closest Approach To Earth (1.227 AU)
Feb 09 - Centaur Object 32532 Thereus At Opposition (11.493 AU)
Feb 09 - 30th Anniversary (1990), Galileo, Venus Flyby
Feb 09 - Peggy Whitson's 60th Birthday (1960)
Feb 09 - Burkhard Heim's 95th Birthday (1925)
Feb 09 - Max Valier's 125th Birthday (1895)
Feb 10 - Mercury At Its Greatest Eastern Elongation (18 Degrees)
Feb 10 - Comet 155P/Shoemaker Closest Approach To Earth (1.109 AU)
Feb 10 - Comet 282P/2003 BM80 Closest Approach To Earth (3.140 AU)
Feb 10 - Comet P/2019 V2 (Groeller) At Opposition (4.171 AU)
Feb 10 - Asteroid 191 Kolga Occults HIP 84880 (4.3 Magnitude Star)
Feb 10 -[Feb 18] Asteroid 2020 DF Near-Earth Flyby (0.009 AU)
Feb 10 - Apollo Asteroid 2020 CO2 Near-Earth Flyby (0.010 AU)
Feb 10 -[Feb 25] Apollo Asteroid 2020 DY2 Near-Earth Flyby (0.022 AU)
Feb 10 -[Feb 18] Aten Asteroid 2020 CW2 Near-Earth Flyby (0.041 AU)
Feb 10 - Apollo Asteroid 2020 CY1 Near-Earth Flyby (0.015 AU)
Feb 10 - Apollo Asteroid 2020 BC10 Near-Earth Flyby (0.039 AU)
Feb 10 - Vatira Asteroid 2020 AV2 Closest Approach To Earth (0.518 AU)
Feb 10 - Asteroid 1221 Amor Closest Approach To Earth (0.880 AU)
Feb 10 - Amor Asteroid 3122 Florence (2 Moons) Closest Approach To Earth (1.799 AU)
Feb 10 - Asteroid 8626 Melissarauch Closest Approach To Earth (2.463 AU)
Feb 10 - Asteroid 8721 AMOS Closest Approach To Earth (3.000 AU)
Feb 10 - Lecture: Juno Observations of Jupiter's Magnetic Field, Ithaca, New York
Feb 10 - Colloquium: Gamma-ray Bursts - Inside and Out, Tucson, Arizona
Feb 10 - Vladimir Shkodrov's 90th Birthday (1930)
Feb 10-12 - 3rd Annual Area Symposium: Innovative Area Gravitational Wave Physics and Astronomy - Genesis, Konan, Japan
Feb 10-14 - Workshop: Tackling the Complexities of Substellar Objects - From Brown Dwarfs to (exo-)Planets, Leiden, The Netherlands
Feb 10-14 - Workshop: Getting Ready to Descend the Slippery Slope of Multimessanger Cosmological Black Holes Data, Sexten, Italy
Feb 10-14 - Workshop: Expanding the Science of TESS, Sydney, Australia
Feb 10-14 - 8th Tux Workshop on Quantum Gravity, Tux, Austria
Feb 10-14 - COSPAR International Space Weather Action Teams (ISWAT) Inaugural Working Meeting, Port Canaveral, Florida
Feb 10-14 - New Zealand Radio Astronomy School & C4SKA Colloquium 2020, Auckland, New Zealand
Feb 11 - 50th Anniversary (1970), Ohsumi Launch (Japan's 1st Satellite)
Feb 11 - Comet P/2012 G1 (PANSTARRS) Closest Approach To Earth (2.350 AU)
Feb 11 - Comet 228P/LINEAR At Opposition (2.462 AU)
Feb 11 - Asteroid 4 Vesta Occults HIP 14439 (5.3 Magnitude Star)
Feb 11 - Apollo Asteroid 2020 CF2 Near-Earth Flyby (0.003 AU)
Feb 11 - Aten Asteroid 2020 CK2 Near-Earth Flyby (0.003 AU)
Feb 11 -[Feb 22] Apollo Asteroid 2020 DO2 Near-Earth Flyby (0.013 AU)
Feb 11 - Asteroid 16522 Tell Closest Approach To Earth (2.388 AU)
Feb 11 - Centaur Object 37117 Narcissus At Opposition (3.152 AU)
Feb 11 - Lecture: Can Astrophysics Help Save Our Planet?, Milton Keynes, United Kingdom
Feb 11 - 10th Anniversary (2010), Solar Dynamics Observatory (SDO) Launch
Feb 11 - 20th Anniversary (2000), STS-99 Launch (Space Shuttle Endeavour, Shuttle Radar Topography Mission)
Feb 11 - Richard Mastracchio's 60th Birthday (1960)
Feb 11 - Richard Hamming's 105th Birthday (1915)
Feb 11 - Henry Talbot's 220th Birthday (1800)
Feb 11-12 - Esri Federal GIS Conference, Washington DC
Feb 11-13 - Conference: Celebrating the Legacy of the Spitzer Space Telescope, Pasadena, California
Feb 11-13 - Workshop: The Impact of Lunar Dust on Human Exploration, Houston, Texas
Feb 11-13 - Meeting: The ALMA2030 Vision - Design Considerations for the Next ALMA Correlator, Charlottesville, Virginia
Feb 11-16 - Singapore Air Show 2020, Singapore
Feb 12 - Hyperbolic Comet C/2019 K1 (ATLAS) Perihelion (2.013 AU)
Feb 12 - Comet 228P/LINEAR Closest Approach To Earth (2.462 AU)
Feb 12 - Comet 259P/Garradd Closest Approach To Earth (2.686 AU)
Feb 12 - Comet 323P/SOHO At Opposition (3.105 AU)
Feb 12 - Hyperbolic Object A/2019 G4 Closest Approach To Earth (5.956 AU)
Feb 12 -[Feb 19] Apollo Asteroid 2020 DT Near-Earth Flyby (0.011 AU)
Feb 12 - Apollo Asteroid 2020 CF Near-Earth Flyby (0.018 AU)
Feb 12 -[Feb 19] Apollo Asteroid 2020 DB1 Near-Earth Flyby (0.018 AU)
Feb 12 -[Feb 18] Asteroid 2020 DH Near-Earth Flyby (0.019 AU)
Feb 12 -[Feb 20] Apollo Asteroid 2020 DF1 Near-Earth Flyby (0.030 AU)
Feb 12 - Apollo Asteroid 2020 CH Near-Earth Flyby (0.030 AU)
Feb 12 - Binary Kuiper Belt Object 79360 Sila-Nunam At Opposition (42.455 AU)
Feb 12 - Colloquium: Coupled Megadrought Risk in North and South America, Greenbelt, Maryland
Feb 12 - Lecture: Robert Versus The Flying Saucers, London, United Kingdom
Feb 12 - Colloquium: Unveiling the Low Mass Universe with New HI Surveys - Apertif and Dwarf Galaxies, Sydney, Australia
Feb 12 - 145th Anniversary (1875), Homestead Meteorite Shower in Iowa
Feb 12 - Pierre-Louis Dulong's 235th Birthday (1785)
Feb 12-14 - Envision Conference: Europe's Revolutionary Mission to Venus, Paris, France
Feb 12-14 - 2020 URSI Regional Conference on Radio Science, Varanasi, India
Feb 12-14 - 2020 Mechanisms Workshop & Final Presentation Days, Noordwijk, The Netherlands
Feb 12-14 - OpenEARTH Conference on Climate Change Adaptation and Mitigation, Thessaloniki, Greece
Feb 13 - Moon Occults Asteroid 3 Juno
Feb 13 - Comet 321P/SOHO Closest Approach To Earth (0.227 AU)
Feb 13 - Asteroid 112 Iphigenia Occults HIP 42327 (6.7 Magnitude Star)
Feb 13 -[Feb 19] Apollo Asteroid 2020 DU Near-Earth Flyby (0.002 AU)
Feb 13 -[Feb 19] Apollo Asteroid 2020 CB3 Near-Earth Flyby (0.025 AU)
Feb 13 - Asteroid 9621 Michaelpalin Closest Approach To Earth (1.047 AU)
Feb 13 - Asteroid 18132 Spector Closest Approach To Earth (1.365 AU)
Feb 13 - Asteroid 447 Valentine Closest Approach To Earth (2.046 AU)
Feb 13 - Lecture: 15 Million Degrees, Belfast, Ireland
Feb 13 - Lecture: Atomic Nuclei - How Many, How Big, How Old?, London, United Kingdom
Feb 13 - Seminar: Ultra-light Scalar Saving the 3 + 1 Neutrino Scheme from the Cosmological Bounds, Trieste, Italy
Feb 13 - Colloquium: The SKA Precursor Telescope MeerKAT as a Galaxy Evolution Explorer, Sydney, Australia
Feb 13 - 40th Anniversary (1980), Venera 12 Observes Comet Bradfield
Feb 13-15 - Milky Way Workshop 2020, Kagoshima, Japan
Feb 13-16 - American Association for the Advancement of Science (AAAS) 2020 Annual Meeting, Seattle, Washington
Feb 14 - Comet 219P/LINEAR At Opposition (3.905 AU)
Feb 14 - Comet P/2019 V2 (Groeller) Closest Approach To Earth (4.169 AU)
Feb 14 - Asteroid 2020 CQ2 Near-Earth Flyby (0.001 AU)
Feb 14 -[Feb 20] Apollo Asteroid 2020 DK1 Near-Earth Flyby (0.039 AU)
Feb 14 - Asteroid 4031 Mueller Closest Approach To Earth (0.920 AU)
Feb 14 - Asteroid 35734 Dilithium Closest Approach To Earth (1.483 AU)
Feb 14 - Asteroid 10044 Squyres Closest Approach To Earth (2.319 AU)
Feb 14 - Royal Astronomical Society (RAS) Ordinary Meeting, London, United Kingdom
Feb 14 - UK Solar System Atmospheres Community Meeting, London, United Kingdom
Feb 14 - Meeting: Galactic Disc and Halo Dynamics Towards Gaia EDR3, London, United Kingdom
Feb 14 - Lecture: Solar Orbiter Mission & Launch, Barcelona, Spain
Feb 14 - Lecture: Pale Blue Dot - Perspectives on our Planet, Pasadena, California
Feb 14 - Lecture: Touring Exotic Landforms Across the Solar System - Adventures in Planetary Geomorphology, Los Altos Hills, California
Feb 14 - Seminar: Time, Ergodicity and Cosmology, Barcelona, Spain
Feb 14 - Gaze at the Galaxy, Colorado Bend State Park, Bend, Texas
Feb 14 - 20th Anniversary (2000), NEAR, Asteroid Eros Orbit Insertion
Feb 14 - 30th Anniversary (1990), Voyager 1, Family Portrait Images
Feb 14 - 40th Anniversary (1980), Solar Maximum Mission Launch
Feb 14-15 - Southwest Strings Meeting 2020 (SWSM 20), Logan, Utah
Feb 15 - Cygnus CRS-13 (NG-13)/ CAPSat Antares 230 Launch (International Space Station), Successful
Feb 15 - Galileo Day
Feb 15 - Comet 374P/Larson At Opposition (2.781 AU)
Feb 15 - Comet 159P/LONEOS At Opposition (3.980 AU)
Feb 15 -[Feb 20] Apollo Asteroid 2020 DU1 Near-Earth Flyby (0.08 AU)
Feb 15 -[Feb 18] Apollo Asteroid 2020 DL Near-Earth Flyby (0.027 AU)
Feb 15 -[Feb 18] Aten Asteroid 2020 DK Near-Earth Flyby (0.032 AU)
Feb 15 -[Feb 19] Apollo Asteroid 2020 DE1 Near-Earth Flyby (0.038 AU)
Feb 15 - Apollo Asteroid 63373 (2002 PZ39) Near-Earth Flyby (0.039 AU)
Feb 15 -[Feb 19] Apollo Asteroid 2020 DD1 Near-Earth Flyby (0.041 AU)
Feb 15 - Asteroid 2531 Cambridge Closest Approach To Earth (1.867 AU)
Feb 15 - Asteroid 9012 Benner Closest Approach To Earth (2.337 AU)
Feb 15 - Asteroid 296907 Alexander Closest Approach To Earth (2.414 AU)
Feb 15 - Symposium: Detecting Extraterrestrial Technologies and Life, Seattle, Washington
Feb 15 - Star Gazing at the Marsh Event, Collier-Seminole State Park, Naples, Florida
Feb 15 - Stargazing Through Telescopes, Indiana Dunes National Park, Porter, Indiana
Feb 15 - Star Party at Cedar Key Museum, Cedar Key, Florida
Feb 15 - Kouchibouguac Winter Stargazing, Kouchibouguac National Park, Canada
Feb 15 - Roger Chaffee's 85th Birthday (1935)
Feb 15 - Mildred Shapley Matthews' 105th Birthday (1915)
Feb 15-16 - Joint Congress of University Astronomy Societies 2020, Kildare, Ireland
Feb 16 - Comet 163P/NEAT Closest Approach To Earth (1.623 AU)
Feb 16 - Apollo Asteroid 2020 CR2 Near-Earth Flyby (0.008 AU)
Feb 16 -[Feb 22] Apollo Asteroid 2020 DL2 Near-Earth Flyby (0.026 AU)
Feb 16 -[Feb 20] Aten Asteroid 2020 DX1 Near-Earth Flyby (0.042 AU)
Feb 16 - Apollo Asteroid 2020 BL14 Near-Earth Flyby (0.046 AU)
Feb 16 - Asteroid 1791 Patsayev Closest Approach To Earth (1.987 AU)
Feb 16 - Asteroid 31319 Vespucci Closest Approach To Earth (2.111 AU)
Feb 16 - Asteroid 51824 Mikeanderson Closest Approach To Earth (2.352 AU)
Feb 16 - Kuiper Belt Object 2014 AN55 At Opposition (45.092 AU)
Feb 16 - 55th Anniversary (1965), Pegasus 1 Launch
Feb 16-21 - Ocean Sciences Meeting 2020, San Diego, California
Feb 16-21 - Winter School on Astronomy (Astrowin 2020), Hyderabad, India
Feb 16-22 - 16th Rencontres du Vietnam: Magnetic Fields in the Universe 7, Quy Nhon, Vietnam
Feb 16-22 - 6th Snow Science Winter School 2020, Col du Lautaret, France
Feb 17 -[Feb 18] Starlink 5 (60) Falcon 9 Launch, Successful
Feb 17 - Yaogan 30-06 01-03 CZ-2C Launch
Feb 17 - Comet 138P/Shoemaker-Levy At Opposition (1.982 AU)
Feb 17 - Comet 152P/Helin-Lawrence At Opposition (3.507 AU)
Feb 17 - Apollo Asteroid 2020 CG2 Near-Earth Flyby (0.006 AU)
Feb 17 - Aten Asteroid 2018 CW2 Near-Earth Flyby (0.016 AU)
Feb 17 - Apollo Asteroid 2020 CK1 Near-Earth Flyby (0.022 AU)
Feb 17 -[Feb 19] Aten Asteroid 2020 DO Near-Earth Flyby (0.027 AU)
Feb 17 - Aten Asteroid 326290 Akhenaten Closest Approach To Earth (0.446 AU)
Feb 17 - Amor Asteroid 7088 Ishtar Closest Approach To Earth (0.559 AU)
Feb 17 - Asteroid 8275 Inca Closest Approach To Earth (0.985 AU)
Feb 17 - Asteroid 2244 Tesla Closest Approach To Earth (1.906 AU)
Feb 17 - 55th Anniversary (1965), Ranger 8 Launch (Moon Impact Mission)
Feb 17-19 - 24th International Microlensing Conference, Beijing, China
Feb 17-19 - Gaia-RIA Workshop: Expanding the Gaia Legacy - The Role of Spanish Ground-based Facilities, Barcelona, Spain
Feb 17-19 - Workshop: Big Data Science in Astroparticle Research, Aachen, Germany
Feb 17-21 - Workshop: Dynamical Reconstruction of Galaxies, Leiden, The Netherlands
Feb 17-21 - Conference: Cosmic Flows, Large-Scale Structure and Visualisation, Stellenbosch/Cape Town, South Africa
Feb 17-21 - 2nd Australia-ESO Joint Conference: The Build Up of Galaxies Through Multiple Tracers and Facilities, Perth, Australia
Feb 17-22 - Group on Earth Observations (GEO) Data and Knowledge Week 2020, Beijing, China
Feb 17-Mar 13 - Workshop: Axion Cosmology, Munich, Germany
Feb 18 -[Feb 19] JCSAT-17/ GEO-KOMPSAT-2B Ariane 5 Launch, Successful
Feb 18 - Moon Occults Mars
Feb 18 - Comet P/2018 Y2 (Africano) Closest Approach To Earth (3.613 AU)
Feb 18 -[Feb 19] Apollo Asteroid 2020 DA1 Near-Earth Flyby (0.001 AU)
Feb 18 -[Feb 19] Aten Asteroid 2020 DW Near-Earth Flyby (0.002 AU)
Feb 18 -[Feb 18] Asteroid 2020 DD Near-Earth Flyby (0.006 AU)
Feb 18 -[Feb 18] Apollo Asteroid 2020 DB Near-Earth Flyby (0.010 AU)
Feb 18 -[Feb 21] Apollo Asteroid 2020 DF2 Near-Earth Flyby (0.010 AU)
Feb 18 -[Feb 22] Apollo Asteroid 2020 DH2 Near-Earth Flyby (0.016 AU)
Feb 18 - Apollo Asteroid 2020 BA10 Near-Earth Flyby (0.031 AU)
Feb 18 - Apollo Asteroid 1864 Daedalus Closest Approach To Earth (1.406 AU)
Feb 18 - Asteroid 2713 Luxemburg Closest Approach To Earth (1.909 AU)
Feb 18 - Asteroid 11334 Rio de Janeiro Closest Approach To Earth (2.052 AU)
Feb 18 - Asteroid 8624 Kaleycuoco Closest Approach To Earth (2.203 AU)
Feb 18 - Lecture: Weird New Worlds, Edinburgh, Scotland, United Kingdom
Feb 18 - Colloquium: Impacts on Space Science from the Growth of the Entrepreneurial Space Sector, Tucson, Arizona
Feb 18 - Lecture: Our Rapidly Changing Biosphere, Tucson, Arizona
Feb 18 - 25th Anniversary (1995), Neagari Meteorite Fall (Hit Car in Japan)
Feb 18 - 90th Anniversary (1930), Clyde Tombaugh's Discovery of Pluto
Feb 18 - Cornelis van Houten's 100th Birthday (1920)
Feb 18 - Alessandro Volta's 275th Birthday (1745)
Feb 18-21 - 3rd International Planetary Caves Conference, San Antonio, Texas
Feb 19 -[Feb 20] XJS C,D,E,F CZ-2D Launch, Successful
Feb 19 - Moon Occults Jupiter
Feb 19 - Comet P/1998 VS24 (LINEAR) At Opposition (3.575 AU)
Feb 19 -[Feb 22] Apollo Asteroid 2020 DJ2 Near-Earth Flyby (0.007 AU)
Feb 19 -[Feb 21] Apollo Asteroid 2020 DD2 Near-Earth Flyby (0.010 AU)
Feb 19 -[Feb 18] Aten Asteroid 2020 DA Near-Earth Flyby (0.020 AU)
Feb 19 -[Feb 18] Apollo Asteroid 2020 CU2 Near-Earth Flyby (0.034 AU)
Feb 19 - Apollo Asteroid 2020 BL7 Near-Earth Flyby (0.035 AU)
Feb 19 - Aten Asteroid 2020 CX1 Near-Earth Flyby (0.036 AU)
Feb 19 - Asteroid 7010 Locke Closest Approach To Earth (1.405 AU)
Feb 19 - Asteroid 5790 Nagasaki Closest Approach To Earth (1.889 AU)
Feb 19 - Asteroid 1132 Hollandia Closest Approach To Earth (2.333 AU)
Feb 19 - Binary Asteroid 90 Antiope Closest Approach To Earth (2.668 AU)
Feb 19 - Astro2020 Teleconference: Panel on State of the Profession and Societal Impacts
Feb 19 - Lecture: How Did Earth Get Its Water? / Researching Comets: The Forgotten Dust Particles, Tucson, Arizona
Feb 19 - John C. Lindsay Memorial Lecture: A NICER View - Physics and Astrophysics from the International Space Station, Greenbelt, Maryland
Feb 19-20 - AA-UT Space Traffic Management Conference, Austin, Texas
Feb 19-21 - East-Asian ALMA Science Workshop 2019, Taipei, Taiwan
Feb 20 -[Feb 21] Meridian-M Soyuz-2.1b/Fregat Launch, Successful
Feb 20 - Moon Occults Dwarf Planet Pluto
Feb 20 -[Feb 19] Apollo Asteroid 2020 DZ Near-Earth Flyby (0.004 AU)
Feb 20 -[Feb 18] Asteroid 2020 DE Near-Earth Flyby (0.009 AU)
Feb 20 -[Feb 18] Apollo Asteroid 2020 DC Near-Earth Flyby (0.015 AU)
Feb 20 - Apollo Asteroid 2020 CP2 Near-Earth Flyby (0.013 AU)
Feb 20 - Aten Asteroid 2019 BE5 Near-Earth Flyby (0.035 AU)
Feb 20 - Apollo Asteroid 2020 BC9 Near-Earth Flyby (0.036 AU)
Feb 20 - Asteroid 2034 Bernoulli Closest Approach To Earth (1.083 AU)
Feb 20 - Asteroid 582 Olympia Closest Approach To Earth (1.176 AU)
Feb 20 - Asteroid 48575 Hawaii Closest Approach To Earth (1.860 AU)
Feb 20 - Asteroid 1322 Coppernicus Closest Approach To Earth (1.885 AU)
Feb 20 - Asteroid 7784 Watterson Closest Approach To Earth (1.925 AU)
Feb 20 -[Feb 20] Seminar: New Lanterns to Illuminate (Ultra) Light Dark Matter, Barcelona, Spain
Feb 20 - Lecture: To c or not to c - Physics in Science Fiction Writing, Staffordshire, United Kingdom
Feb 20 - Webinar: Navigating the New Arctic
Feb 20 - George Smoot's 75th Birthday (1945)
Feb 20-22 - 10th Central European Relativity Seminar, Potsdam-Golm, Germany
Feb 21 - Comet 297P/Beshore Closest Approach To Earth (2.092 AU)
Feb 21 - Hyperbolic Object A/2019 G4 At Opposition (5.972 AU)
Feb 21 - Comet C/2017 AB5 (PANSTARRS) Closest Approach To Earth (9.256 AU)
Feb 21 -[Feb 22] Apollo Asteroid 2020 DK2 Near-Earth Flyby (0.010 AU)
Feb 21 -[Feb 20] Apollo Asteroid 2020 DG1 Near-Earth Flyby (0.035 AU)
Feb 21 - 35th Annual New Mexico Symposium, Socorro, New Mexico
Feb 21 - Night Sky Program, Florissant Fossil Beds National Monument, Florissant, Colorado
Feb 21 - Tom Gehrels' 95th Birthday (1925)
Feb 21-23 - Death Valley Dark Sky Festival, Death Valley National Park, California
Feb 21-24 - WCRP/SPARC SATIO-TCS Joint Workshop on Stratosphere-Troposphere Dynamical Coupling in the Tropics, Kyoto, Japan
Feb 22 - Comet C/2020 A2 (Iwamoto) Closest Approach To Earth (0.913 AU)
Feb 22 - Comet 117P/Helin-Roman-Alu At Opposition (3.577 AU)
Feb 22 - Asteroid 97 Klotho Occults HIP 22616 (6.7 Magnitude Star)
Feb 22 -[Feb 19] Apollo Asteroid 2020 DR Near-Earth Flyby (0.014 AU)
Feb 22 -[Feb 18] Apollo Asteroid 2020 DJ Near-Earth Flyby (0.024 AU)
Feb 22 -[Feb 19] Apollo Asteroid 2020 DC1 Near-Earth Flyby (0.036 AU)
Feb 22 -[Feb 21] Apollo Asteroid 2020 DB2 Near-Earth Flyby (0.036 AU)
Feb 22 - Atira Asteroid 2019 LF6 Closest Approach To Earth (0.490 AU)
Feb 22 - Asteroid 1704 Wachmann Closest Approach To Earth (1.064 AU)
Feb 22 - Asteroid 4355 Memphis Closest Approach To Earth (1.578 AU)
Feb 22 - Asteroid 4319 Jackierobinson Closest Approach To Earth (1.806 AU)
Feb 22 - Asteroid 3066 McFadden Closest Approach To Earth (1.823 AU)
Feb 22 - Asteroid 1095 Tulipa Closest Approach To Earth (1.977 AU)
Feb 22 - Asteroid 18125 Brianwilson Closest Approach To Earth (2.510 AU)
Feb 22 - Kuiper Belt Object 308193 (2005 CB79) At Opposition (37.848 AU)
Feb 22 - Kuiper Belt Object 55565 (2002 AW197) At Opposition (44.285 AU)
Feb 22 - Starry Night Constellation Talk, Palo Duro Canyon State Park, Canyon, Texas
Feb 22 - An Evening Under the Stars, Big Lagoon State Park, Pensacola, Florida
Feb 22 - 20th Anniversary (2000), Galileo, Io 27 Flyby
Feb 23 -[Feb 20] Apollo Asteroid 2020 DW1 Near-Earth Flyby (0.017 AU)
Feb 23 -[Feb 18] Apollo Asteroid 2020 CY2 Near-Earth Flyby (0.029 AU)
Feb 23 - Amor Asteroid 2011 DR Near-Earth Flyby (0.038 AU)
Feb 23 - Apollo Asteroid 2020 BR10 Near-Earth Flyby (0.040 AU)
Feb 23 - Apollo Asteroid 2016 CO246 Near-Earth Flyby (0.047 AU)
Feb 23 - Apollo Asteroid 3103 Eger Closest Approach To Earth (1.370 AU)
Feb 23 - Asteroid 18725 Atacama Closest Approach To Earth (1.631 AU)
Feb 23 - Asteroid 6592 Goya Closest Approach To Earth (1.774 AU)
Feb 23 - Asteroid 16761 Hertz Closest Approach To Earth (2.070 AU)
Feb 23 - Asteroid 241 Germania Closest Approach To Earth (2.362 AU)
Feb 23 - Kuiper Belt Object 148209 (2000 CR105) At Opposition (61.639 AU)
Feb 23 - 70th Anniversary (1950), Carl Wirtanen's Discovery of Asteroid 29075 (1950 DA)
Feb 23 - Svetlana Gerasimenko's 75th Birthday (1945)
Feb 23-29 - Winter School 2020: Astrochemistry, Saddlebrooke, Arizona
Feb 24 -[Feb 24] RIP: Katherine Johnson (1918-2020)
Feb 24 - Hyperbolic Comet C/2019 K1 (ATLAS) Closest Approach To Earth (2.287 AU)
Feb 24 - Aten Asteroid 2020 BW13 Near-Earth Flyby (0.023 AU)
Feb 24 - Asteroid 17033 Rusty Closest Approach To Earth (1.450 AU)
Feb 24 - Asteroid 20103 de Vico Closest Approach To Earth (1.612 AU)
Feb 24 - Asteroid 8722 Schirra Closest Approach To Earth (1.908 AU)
Feb 24 - Asteroid 8103 Fermi Closest Approach To Earth (1.995 AU)
Feb 24 - Colloquium: Probing the Escaping Atmospheres of Exoplanets, Tucson, Arizona
Feb 24-28 - Conference on Neutrino and Nuclear Physics 2020 (CNNP2020), Cape Town, South Africa
Feb 24-28 -[Feb 22] Workshop: Fundamental Physics at the Crossroads, Leiden, The Netherlands
Feb 24-28 - International Conference on Instrumentation for Colliding Beam Physics (INSTR20), Novosibirsk, Russia
Feb 24-28 - 52nd Session of the United Nations Intergovernmental Panel on Climate Change (IPCC), Paris, France
Feb 24-28 -[Feb 22] 2nd Expert Meeting of the Working Group on Marine Geospatial Information, Rostock-Warnemunde, Germany
Feb 24-28 - 56th Karpacz Winter School in Theoretical Physics 2020: Superfluidity and Transport for Multimessenger Physics of Compact Stars, Karpacz, Poland
Feb 25 - Jilin-1 Optical-B Kuaizhou 11 Launch
Feb 25 -[Feb 25] Astra Rocket 3.0 Test Launch
Feb 25 - Comet 289P/Blanpain At Opposition (0.372 AU)
Feb 25 -[Feb 24] Apollo Asteroid 2020 DT2 Near-Earth Flyby (0.013 AU)
Feb 25 - Atira Asteroid 1998 DK36 Closest Approach To Earth (0.540 AU)
Feb 25 - Binary Amor Asteroid 15745 Yuliya Closest Approach To Earth (0.903 AU)
Feb 25 - Asteroid 184064 Miner Closest Approach To Earth (1.759 AU)
Feb 25 - Lecture: Lifting the Veil on Galaxy Evolution, Birmingham, United Kingdom
Feb 25 - Lecture: The Philosophy of Starship Physics - The Exploration of Interstellar and Intergalactic Space, London, United Kingdom
Feb 25 - Lecture: Are We Alone in the Universe?, Oakland, California
Feb 25 -[Feb 19] Lecture: Life on Ice, New York, New York
Feb 25 -[Feb 21] Colloquium: Wind-driven Landscape Change on Mars, Tucson, Arizona
Feb 25 - Patrick Michel's 50th Birthday (1970)
Feb 25 - Maria Margarethe Kirch's 350th Birthday (1670)
Feb 25-26 - Paris Space Week, Paris, France
Feb 25-26 - 1st International High Level Conference & Exhibition (IHLC2020): The Space Options for Africa - Knowledge Sharing, Partnerships, Exploitation, Space Solutions, Technologies Development, Disaster Risk Reduction, and Integration, Addis Ababa, Ethiopia
Feb 25-26 - Spanish Small Satellites International Forum 2020, Malaga, Spain
Feb 25-27 - PERC International Symposium on Dust & Parent Bodies (IDP2020), Chiba, Japan
Feb 25-27 - Access to Space Workshop: Increased Science Return Through Rideshare and Utilizing Excess-mass Lift Capacity Workshop, Laurel, Maryland
Feb 25-27 - Additive Manufacturing for Aerospace & Space Conference, Birmingham, United Kingdom
Feb 25-27 -[Feb 22] UN-GGIM WG-Disasters Conference 2020, Tokyo, Japan
Feb 25-27 - Astro2020 Meeting: Panel on Optical and Infrared Observations from the Ground, Washington DC
Feb 25-28 - Aerospace Europe Conference (AEC2020), Bordeaux, France
Feb 25-28 - Galaxy Forum Hainan 2020, Hainan Island, China
Feb 26 - Comet 356P/WISE At Opposition (3.721 AU)
Feb 26 - Apollo Asteroid 2012 DS30 Near-Earth Flyby (0.031 AU)
Feb 26 - Atira Asteroid 418265 (2008 EA32) Closest Approach To Earth (1.078 AU)
Feb 26 - Asteroid 3651 Friedman Closest Approach To Earth (1.256 AU)
Feb 26 - Asteroid 5805 Glasgow Closest Approach To Earth (1.343 AU)
Feb 26 - Asteroid 6030 Zolensky Closest Approach To Earth (2.314 AU)
Feb 26 - Centaur Object 121725 Aphidas At Opposition (24.316 AU)
Feb 26 - Teleconference: Astronomy and Astrophysics Advisory Committee (AAAC) Meeting
Feb 26 - Meeting: Ethical Discussion on the Colonization of Mars, Overveen, The Netherlands
Feb 26 - Public Forum on The Moon 'Mini', Melbourne, Australia
Feb 26 -[Feb 22] Colloquium: The Composition of Interstellar Come 2I/Borisov - Insights into Planet Formation in Other Planetary Systeams, Greenbelt, Maryland
Feb 26 -[Feb 24] Colloquium: Massive Scale Pulsar Timing with the Molonglo Observatory Synthesis Telescope, Sydney, Australia
Feb 26 - Kenneth Edgeworth's 140th Birthday (1880)
Feb 26 - Federico Cesi's 435th Birthday (1585)
Feb 26-28 - Michael Knoelker Symposium: From Solar Physics to Exoplanets, Boulder, Colorado
Feb 27 - Comet 320P/McNaught At Opposition (2.395 AU)
Feb 27 - Comet 253P/PANSTARRS At Opposiion (3.217 AU)
Feb 27 - Comet 345P/LINEAR At Opposition (3.906)
Feb 27 - Comet 236P/LINEAR At Opposition (4.113 AU)
Feb 27 - Comet P/2018 Y2 (Africano) At Opposition (3.625 AU)
Feb 27 - Comet 360P/WISE At Opposition (4.232 AU)
Feb 27 - Asteroid 2 Pallas Occults TYC 1026-01869-1 (9.3 Magnitude Star)
Feb 27 -[Feb 21] Apollo Asteroid 2020 DZ1 Near-Earth Flyby (0.019 AU)
Feb 27 - Asteroid 3831 Pettengill Closest Approach To Earth (1.501 AU)
Feb 27 - Asteroid 1034 Mozartia Closest Approach To Earth (1.885 AU)
Feb 27 - Asteroid 227 Philosophia Closest Approach To Earth (1.981 AU)
Feb 27 -[Feb 20] Virtual NASA Astrophysics Virtual Town Hall
Feb 27 -[Feb 18] Astro2020 Teleconference: Panel on Particle Astrophysics and Gravitation
Feb 27 - Lecture: The Darkest Secrets of the Universe, Kamuela, Hawaii
Feb 27 -[Feb 18] Colloquia: Fast Radio Bursts, HIRAX, and CHORD, Ithaca, New York
Feb 27 -[Feb 23] Seminar: Geodesic Deviation in Field Space - Flattened Non-Gaussianities and PBH, Barcelona, Spain
Feb 27-28 - Space Weather Operations and Research Infrastructure Workshop, Washington DC
Feb 28 - Comet 139P/Vaisala-Oterma At Opposition (3.671 AU)
Feb 28 - Comet C/2010 U3 (Boattini) Closest Approach To Earth (8.140 AU)
Feb 28 -[Feb 22] Apollo Asteroid 2020 DM2 Near-Earth Flyby (0.015 AU)
Feb 28 - Asteroid 9007 James Bond Closest Approach To Earth (1.731 AU)
Feb 28 - Asteroid 88292 Bora-Bora Closest Approach To Earth (1.786 AU)
Feb 28 - Asteroid 110026 Hamill Closest Approach To Earth (2.216 AU)
Feb 28 - Asteroid 804 Hispania Closest Approach To Earth (2.246 AU)
Feb 28 - Asteroid 1604 Tombaugh Closest Approach To Earth (2.342 AU)
Feb 28 - Amor Asteroid 5370 Taranis Closest Approach To Earth (4.457 AU)
Feb 28 -[Feb 25] Lunar Surface Innovation Consortium, Laurel, Maryland
Feb 28 - Student Competition and Conference: Cities in Space 2020, Austin, Texas
Feb 28 - Lecture: De los Atomos a Los Agujeros Negros(En Español, Pasadena, California)
Feb 28 - 30th Anniversary (1990), STS-36 Launch (Space Shuttle Atlantis, DOD)
Feb 28 - Corneluis Gemma's 485th Birthday (1535)
Feb 28-Mar 06 - Workshop: Journey Through the Universe 2020, Hilo, Hawaii
Feb 29 - Comet 387P/Boattini At Opposition (1.449 AU)
Feb 29 - Comet C/2017 AB5 (PANSTARRS) At Opposition (9.263 AU)
Feb 29 -[Feb 20] Apollo Asteroid 2020 DV1 Near-Earth Flyby (0.026 AU)
Feb 29 - Apollo Asteroid 2015 BK509 Near-Earth Flyby (0.048 AU)
Feb 29 - Aten Asteroid 367943 Duende Closest Approach To Earth (0.306 AU)
Feb 29 - Asteroid 6542 Jacquescousteau Closest Approach To Earth (1.062 AU)
Feb 29 - Asteroid 3153 Lincoln Closest Approach To Earth (1.632 AU)
Feb 29 - Asteroid 3351 Smith Closest Approach To Earth (2.738 AU)
Feb 29 - SpaceUp Wales, Rhyl, United Kingdom
Feb 29 - Griffith Observatory Public Star Party, Los Angeles, California
Feb 29 - Event: An Evening Under the Stars, Big Lagoon State Park, Pensacola, Florida
Feb 29 - Lewis Swift's 200th Birthday (1820)

March 2020

Mar ?? - AFSPC 12/ WFOV Atlas 5 Launch
Mar ?? - LARES 2 Vega-C Launch
Mar ?? - Ceres-1 Launch (Maiden Launch)
Mar ?? - GLONASS-K2 15L Soyuz-2.1b/Fregat-M Launch
Mar ?? - RISAT-2BR2/ KSM PSLV Launch
Mar ?? - INCA/ VCLS ELaNa/ CACTUS 1/ ExoCube 2/ MicroMAS 2b/ MiTEE 1/ PolarCube/ Q-PACE/ CAPE 3/ RadFxSat 2 (Fox 1E)/ PICS 1 & 2/ SHFT-2/ TechEdSat 7 (TES 7) LauncherOne Launch
Mar ?? - Xin Jishu Yanzheng 6 CZ-7A Launch
Mar ?? -[Feb 18] Tongxin Jishu Shiyan 6 (TJS 6) CZ-7A Launch
Mar ?? -[Feb 22] Xingyun-2 01 & 02 Kuaizhou-1A Launch
Mar 01 - HALO-Net Free Flyer LauncherOne Launch
Mar 01 - Moon Occults Asteroid 4 Vesta
Mar 01 - Comet 317P/WISE Closest Approach To Earth (1.536 AU)
Mar 01 - Comet 388P/Gibbs At Opposition (1.934 AU)
Mar 01 - Asteroid 466 Tisiphone Occults HIP 83491 (5.8 Magnitude Star)
Mar 01 - Apollo Asteroid 2017 BM123 Near-Earth Flyby (0.027 AU)
Mar 01 - Asteroid 376 Geometria Closest Approach To Earth (1.337 AU)
Mar 01 - Asteroid 3252 Johnny Closest Approach To Earth (1.422 AU)
Mar 01 - Asteroid 14094 Garneau Closest Approach To Earth (2.067 AU)
Mar 01 - Asteroid 15614 Pillinger Closest Approach To Earth (2.114 AU)
Mar 01 - Asteroid 3852 Glennford Closest Approach To Earth (2.531 AU)
Mar 01 - Asteroid 8629 Chucklorre Closest Approach To Earth (2.632 AU)
Mar 01 - Plutino 90482 Orcus At Opposition (47.134 AU)
Mar 01 - 40th Anniversary (1980), Pierre Laques & Jean Lechaceux's Discovery of Saturn Moon Helene
Mar 01-06 - Conference: First Stars VI, Concepcion, Chiel
Mar 02 -[Feb 24] CRS-20/ Bartolomeo/ SPOC/ TechEdSat 10 (TES 10)/ GEROS Falcon 9 Launch (International Space Station)
Mar 02 -[Feb 24] Cygnus CRS-12 (NG-12) Reenters Earth's Atmosphere
Mar 02 - Comet 124P/Mrkos At Opposition (0.810 AU)
Mar 02 - Comet C/2020 B2 (Lemmon) Closest Approach To Earth (1.900 AU)
Mar 02 - Asteroid 2554 Skiff Closest Approach To Earth (1.368 AU)
Mar 02 - Asteroid 14967 Madrid Closest Approach To Earth (1.904 AU)
Mar 02 - Asteroid 20488 Pic-du-Midi Closest Approach To Earth (2.160 AU)
Mar 02 - Asteroid 10379 Lake Placid Closest Approach To Earth (2.435 AU)
Mar 02 - Meeting: Ethical Discussion on the Colonization of Mars, The Hague, The Netherlands
Mar 02 - 25th Anniversary (1995), STS-67 Launch (Space Shuttle Discovery, Spacelab)
Mar 02 - Mikhail Tyurin's 60th Birthday (1960)
Mar 02 - Hermann Mucke's 85th Birthday (1935)
Mar 02-04 - Next Generation Suborbital Researchers Conference (NSRC-2020), Broomfield, Colorado
Mar 02-04 - Conference on Regional Climate Modeling and Extreme Events over South America: Results from the CORDEX-Flagship Pilot Study, Buenos Aires, Argentina
Mar 02-04 - Astro2020 Meeting: Panel on Electromagnetic Observations from Space, Irvine, California
Mar 02-05 - 1st International Workshop on Solar Imaging with ALMA: ALMA-SOL-IMG1, Oslo, Norway
Mar 02-06 - IAU Symposium 359: Galaxy Evolution and Feedback Across Different Environments (GALFEED), Bento Gonçalves, Brazil
Mar 02-06 - Planets2020 Workshop: Ground and Space Observatories - A Joint Venture to Planetary Science, Santiago, Chile, Santiago, Chile
Mar 02-06 - NUSTAR Annual Meeting 2020, Darmstadt, Germany
Mar 02-06 - IUCAF 5th School on Spectrum Management for Radio Astronomy, Stellenbosch, South Africa
Mar 02-06 -[Feb 18] European School of Antennas: Antennas for Space Applications, Noordwijk, The Netherlands
Mar 02-08 - 36th International Geological Congress, Delhi, India
Mar 02-27 - Conference: The Shifting Paradigm of Stellar Convection from Mixing Length Concepts to Realistic Turbulence Modeling, Stockholm, Sweden
Mar 03 - Comet 163P/NEAT At Opposition (1.656 AU)
Mar 03 - Comet 57P-A/du Toit-Neujmin-Delporte At Opposition (3.238 AU)
Mar 03 - Comet 57P/du Toit-Neujmin-Delporte At Opposition (3.239 AU)
Mar 03 - Comet 54P/de Vico-Swift-NEAT At Opposition (4.225 AU)
Mar 03 - Asteroid 12413 Johnnyweir Closest Approach To Earth (1.895 AU)
Mar 03 - Asteroid 5682 Beresford Closest Approach To Earth (1.987 AU)
Mar 03 - Asteroid 8489 Boulder Closest Approach To Earth (2.084 AU)
Mar 03 - Galaxy Forum Southeast Asia 2020, Chiang Mai, Thailand
Mar 03 -[Feb 18] Astro2020 Teleconference: Panel on Radio, Millimeter and Submillimeter Observations from the Ground
Mar 03 - Workhop: Satellite... & the Cloud 2020, London, United Kingdom
Mar 03 - 10th Anniversary (2010), Mars Express, Phobos Flyby
Mar 03 - 105th Anniversary (1915), Founding of the National Advisory Committee for Aeronautics (NACA)
Mar 03-04 - Coherent Structure Tracking (CST) Workshop, Orsay, France.
Mar 03-05 - James Webb Space Telescope (JWST) Master Class Workshop, Prague, Czech Republic
Mar 03-05 - 4th Sentinel-2 Validation Team Meeting, Darmstadt, Germany
Mar 03-05 - OCTAV UTLS Meeting: Observed Composition Trends and Variability in the UT/LS, Wrightwood, California
Mar 03-06 - 3rd KMI School: Machine Learning in Particle and Astrophysics, Nagoya, Japan
Mar 03-09 - Moscow International School of Physics 2020, Moscow, Russia
Mar 04 -[Feb 25] Starlink 6 (60)/Vigoride 1 (VR-1) Falcon 9 Launch
Mar 04 - Comet 155P/Shoemaker At Opposition (1.169 AU)
Mar 04 - Comet 358P/PANSTARRS Closest Approach To Earth (2.688 AU)
Mar 04 - Atira Asteroid 2014 FO47 Closest Approach To Earth (0.588 AU)
Mar 04 - Asteroid 5961 Watt Closest Approach To Earth (1.067 AU)
Mar 04 - Asteroid 7934 Sinatra Closest Approacn To Earth (1.237 AU)
Mar 04 - Asteroid 4783 Wasson Closest Approach To Earth (1.314 AU)
Mar 04 - Apollo Asteroid 2329 Orthos Closest Approach To Earth (2.684 AU)
Mar 04 - Space Life and Biomedical Sciences Symposium, Harwell, United Kingdom
Mar 04 -[Feb 25] Astro2020 Teleconference: Panel on Electromagnetic Observations from Space
Mar 04 -[Feb 25] Astro2020 Teleconference: Panel on State of the Profession and Societal Impacts
Mar 04 - Lecture: Time Crystals Shades of Impossible, Wolverhampton, United Kingdom
Mar 04 - Lecture: Magnificent Mathematicians in their Flying Machines, London, United Kingdom
Mar 04 - 15th Anniversary (2005), Rosetta, 1st Earth Gravity Assist
Mar 04 - 20th Anniversary (2000), Comet P/2000 G1 (LINEAR) Near-Earth Flyby (37.9 Lunar Distance)
Mar 04 - 60th Anniversary (1960), Bruderheim Meteorite Shower in Canada
Mar 04-06 - Workshop: Bayesian Deep Learning for Cosmology and Gravitational Waves, Paris, France
Mar 04-06 - 1st LISA Sprint, New York
Mar 05 - GISAT 1 PSLV-II Launch
Mar 05 - Comet 98P/Takamizawa At Opposition (2.134 AU)
Mar 05 - Comet C/2018 R3 (Lemmon) At Opposition (3.028 AU)
Mar 05 - Comet P/2017 S5 (ATLAS) At Opposition (3.182 AU)
Mar 05 - Comet 203P/Korlevic Perihelion (3.200 AU)
Mar 05 - Comet 357P/Hill At Opposition (3.559 AU)
Mar 05 - Centaur Object A/2019 G3 At Opposition (3.966 AU)
Mar 05 - Asteroid 990 Yerkes Closest Approach To Earth (2.216 AU)
Mar 05 - Asteroid 397 Vienna Closest Approach To Earth (2.245 AU)
Mar 05 - Asteroid 876 Scott Closest Approach To Earth (2.343 AU)
Mar 05 - Kuiper Belt Object 523671 (2013 FZ27) At Opposition (46.972 AU)
Mar 05 -[Feb 25] Teleconference: Astro2020 Decadal Survey Committee
Mar 05 - Lecture: The Search for Life - Exploring Ocean Worlds, Pasadena, California
Mar 05 - SPACEtalks.biz: The Interstellar Business ConfEx, London, United Kingdom
Mar 05 - Lecture: Looking Inside the Moon - From Apollo to GRAIL and Beyond, Houston, Texas
Mar 05 - Seminar: Nuclear Activity and Star Formation in Local Luminous Infrared Galaxies, Barcelona, Spain
Mar 05 -[Feb 18] Colloquia: Exploring the Universe with CCAT-prime - An Update, Ithaca, New York
Mar 05 - 60th Anniversary (1960), Gao-Guenie Meteorite Fall (Hit Huts in Upper Volta)
Mar 05 - Jean Mueller's 70th Birthday (1950)
Mar 05-08 - 6th Workshop on Cosmology and the Quantum Vacuum, Barcelona, Spain
Mar 06 - Falcon Eye 2 Soyuz ST-A/Fregat-M Launch
Mar 06 - Comet P/2019 A2 (ATLAS) Closest Approach To Earth (3.380 AU)
Mar 06 - Comet 21P/Giacobini-Zinner At Opposition (3.723 AU)
Mar 06 - Comet 370P/NEAT At Opposition (4.272 AU)
Mar 06 - Comet C/2010 U3 (Boattini) At Opposition (8.144 AU)
Mar 06 - Atira Asteroid 2015 DR215 Closest Approach To Earth (0.840 AU)
Mar 06 - Asteroid 1279 Uganda Closest Approach To Earth (1.492 AU)
Mar 06 - Asteroid 9305 Hazard Closest Approach To Earth (1.514 AU)
Mar 06 - Asteroid 51827 Laurelclark Closest Approach To Earth (1.809 AU)
Mar 06 - Kuiper Belt Object 88611 Teharonhiawako At Opposition (46.180)
Mar 06 - Kuiper Belt Object 2017 FO161 At Opposition (77.336 AU)
Mar 06 - Lecture: The Search for Life - Exploring Ocean Worlds, Pasadena, California
Mar 06 - 5th Anniversary (2015), Dawn, Ceres Arrival
Mar 06 - Michelangelo's 545th Birthday (1475)
Mar 07 - International Day of Planetariums
Mar 07 - Comet C/2020 B2 (Lemmon) At Opposition (1.903 AU)
Mar 07 - Asteroid 2925 Beatty Closest Approach To Earth (0.999 AU)
Mar 07 - Apollo Asteroid 2011 MD Closest Approach To Earth (1.669 AU)
Mar 07 - Kuiper Belt Object 532037 (2013 FY27) At Opposition (78.901 AU)
Mar 07 -[Feb 22] Educators Workshop: Exploring Space with the Science of Light, Pasadena, California
Mar 07 - San Antonio Astronomical Association Star Party, Guadalupe River State Park, Spring Branch, Texas
Mar 07 - Viktor Savinykh's 80th Birthday (1940)
Mar 07 - Stanley Miller's 90th Birthday (1930)
Mar 07-08 - National Student Space Conference (NSDC), United Kingdom
Mar 07-14 - 2020 IEEE Aerospace Conference, Big Sky, Montana
Mar 08 - Comet 69P/Taylor Closest Approach To Earth (2.407 AU)
Mar 08 - Asteroid 78577 JPL Closest Approach To Earth (1.942 AU)
Mar 08 - Asteroid 128 Nemesis Closest Approach To Earth (2.052 AU)
Mar 08 - Asteroid 15371 Steward Closest Approach To Earth (2.205 AU)
Mar 08 - 110th Anniversary (1910), Raymonde de Laroche Becomes 1st Woman in World to Receive Pilot's License
Mar 08-13 - Cloud Academy II, St. Andrews, United Kingdom
Mar 08-13 - 19th Annual International Astrophysics Conference: From the Sun's Atmosphere to the Edge of the Galaxy - A Story of Connections, Santa Fe, New Mexico
Mar 08-14 - 34th Rencontres de Physique de la Vallee d'Aoste on Results and Perspectives in Particle Physics, La Thuile, Aosta Valley, Italy
Mar 09 - Supermoon
Mar 09 - Venus Passes 2.4 Degrees From Uranus
Mar 09 - Comet 358P/PANSTARRS At Opposition (2.692 AU)
Mar 09 - Comet C/2019 J3 (ATLAS) Closest Approach To Earth (2.858 AU)
Mar 09 - Comet P/2007 T2 (Kowalski) At Opposition (3.862 AU)
Mar 09 - Comet C/2018 X3 (PANSTARRS At Opposition (3.932 AU)
Mar 09 - Apollo Asteroid 11066 Sigurd Closest Approach To Earth (0.876 AU)
Mar 09 - Asteroid 78905 Seanokeefe Closest Approach To Earth (0.910 AU)
Mar 09 - Asteroid 165347 Philplait Closest Approach To Earth (1.070 AU)
Mar 09 - Asteroid 293 Brasilia Closest Approach To Earth (1.633 AU)
Mar 09 - Asteroid 4587 Rees Closest Approach To Earth (1.646 AU)
Mar 09 - Asteroid 1756 Giacobini Closest Approach To Earth (1.954 AU)
Mar 09 - Asteroid 2742 Gibson Closest Approach To Earth (2.004 AU)
Mar 09 - Asteroid 8423 Macao Closest Approach To Earth (2.713 AU)
Mar 09 - Centaur Object 346889 Rhiphonos At Opposition (12.413 AU)
Mar 09-10 -[Feb 19] 2nd ESA Workshop on Advanced Manufacturing, Noordwijk, The Netherlands
Mar 09-11 - Conference: Star Clusters 2020, La Serena, Chile
Mar 09-11 - Workshop: Particle Acceleration in Solar Flares - Deciphering its Features Under Magnetic Reconnection, Chiba, Japan
Mar 09-11 - Workshop: Revisiting Infrared Heterodyne Interferometry for Astronomical Aperture Synthesis (HIFASS 2020), Grenoble, France
Mar 09-11 - Astro2020 Meeting: Panel on An Enabling Foundation for Research, Washington DC
Mar 09-11 -[Feb 18] 6th Expert Meeting of the Working Group on Geospatial Information, Mexico City, Mexico
Mar 09-12 - Satellite 2020 Conference, Washington DC
Mar 09-13 -[Feb 22] 10th Planetary Science Workshop, Punta del Este, Uruguay
Mar 09-13 - Workshop: The Physical Challenges of Astro-Statistics, Sexten, Italy
Mar 09-13 - 3rd World Summit on Exploring the Dark Side of the Universe, Point a Pitre, Guadeloupe Islands, French Antilles
Mar 09-13 - The 19th Annual International Astrophysics Conference: From the Sun's Atmosphere to the Edge of the Galaxy - A Story of Connections, Santa Fe, New Mexico
Mar 09-13 -[Feb 21] Workshop: Hot But Habitable, Leiden, The Netherlands
Mar 09-20 - School: Theoretical Aspects of Astroparticle Physics, Cosmology and Gravitation - 2020, Florence, Italy
Mar 10 - Comet 6P/d'Arrest At Opposition (3.450 AU)
Mar 10 - Comet 361P/Spacewatch At Opposition (3.586 AU)
Mar 10 - Apollo Asteroid 2018 RF6 Near-Earth Flyby (0.029 AU)
Mar 10 -[Feb 19] Apollo Asteroid 2020 CA3 Near-Earth Flyby (0.035 AU)
Mar 10 - Apollo Asteroid 535844 (2015 BY310) Near-Earth Flyby (0.036 AU)
Mar 10 - Asteroid 9622 Terryjones Closest Approach To Earth (1.134 AU)
Mar 10 - Aerospace Day at the Colorado State Capitol 2020, Denver, Colorado
Mar 10 - Lecture: Wave-Particle Duality and the Frightening Consequences, Worcestershire, United Kingdom
Mar 10-12 - 23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference, Montreal, Canada
Mar 10-12 - MAXI 10 Year Workshop for the Time Domain Astronomy, Tokyo, Japan
Mar 10-12 - Astro2020 Meeting: Panel on Radio, Millimeter and Submillimeter Observations from the Ground, Tucson, Arizona
Mar 11 - Comet 232P/Hill Closest Approach To Earth (2.567 AU)
Mar 11 - Comet 228P/LINEAR Perihelion (3.436 AU)
Mar 11 - Comet 64P/Swift-Gehrels At Opposition (3.528 AU)
Mar 11 - Comet 286P/Christensen At Opposition (3.922 AU)
Mar 11 - Comet 287P/Christensen At Opposition (4.151 AU)
Mar 11 - Aten Asteroid 2008 UB95 Near-Earth Flyby (0.047 AU)
Mar 11 - Lecture: Ripples from the Dark Side of the Universe, Cambridge, United Kingdom
Mar 11 - Lecture: ESA Business Applications and Space Solutions (BASS) - Developing your Business in Space, London, United Kingdom
Mar 11 - 60th Anniversary (1960), Pioneer 5 Launch (Solar Orbiter)
Mar 11 - Nicolaas Bloembergen's 100th Birthday (1920)
Mar 11-13 - James Webb Space Telescope (JWST) Master Class Workshop, Torun, Poland
Mar 11-13 - URSI-France 2020 Workshop: Future Networks - 5G and Beyond, Paris, France
Mar 11-13 - Astro2020 Meeting: Panel on State of the Profession and Societal Impacts, Washington DC
Mar 12 - Comet 31P/Schwassmann-Wachmann Closest Approach To Earth (2.579 AU)
Mar 12 - Asteroid 10051 Albee Closest Approach To Earth (1.756 AU)
Mar 12 - Asteroid 32605 Lucy Closest Approach To Earth (1.962 AU)
Mar 12 - Asteroid 19631 Greensleeves Closest Approach To Earth (2.073 AU)
Mar 12 - Asteroid 8621 Jimparsons Closest Approach To Earth (2.456 AU)
Mar 12 - Lecture: Making a Star in the Lab, Keeler, United Kingdom
Mar 12 - John Linsley's 95th Birthday (1925)
Mar 12 - Simon Newcomb's 185th Birthday (1835)
Mar 13 - Comet 373P/Rinner Closest Approach To Earth (2.236 AU)
Mar 13 - Atira Asteroid 434326 (2004 JG6) Closest Approach To Earth (1.245 AU)
Mar 13 - Asteroid 29470 Higgs Closest Approach To Earth (1.561 AU)
Mar 13 - Asteroid 12382 Niagara Falls Closest Approach To Earth (1.855 AU)
Mar 13 - Asteroid 19482 Harperlee Closest Approach To Earth (2.221 AU)
Mar 13 - Asteroid 4768 Hartley Closest Approach To Earth (2.950 AU)
Mar 13 - Royal Astronomical Society (RAS) Ordinary Meeting, London, United Kingdom
Mar 13 - Meeting: Novel Astrophysical Probes of Dark Matter, London, United Kingdom
Mar 13 - Meeting: The Near-Sun Solar Wind at Solar Minimum, London, United Kingdom
Mar 13 - Dinosaur Valley State Park Star Party, Glen Rose, Texas
Mar 13 - 40th Anniversary (1980), Pascu/Seidelmann/Baum/Currie's Discovery of Saturn Moon Calypso
Mar 13 - Percival Lowell's 165th Birthday (1855)
Mar 13-14 - 9th Gulf Coast Gravity Meeting, Oxford, Mississippi
Mar 14 - Pi Day
Mar 14 - Comet 31P/Schwassmann-Wachmann At Opposition (2.580 AU)
Mar 14 - Comet C/2020 B3 (Rankin) Closest Approach To Earth (2.632 AU)
Mar 14 - Asteroid 1428 Mombasa Occults HIP 50459 (6.5 Magnitude Star)
Mar 14 - Asteroid 3 Juno Occults UCAC4 447-054791 (12.4 Magnitude Star)
Mar 14 - Asteroid 15907 Robot Closest Approach To Earth (1.462 AU)
Mar 14 - Asteroid 91007 Ianfleming Closest Approach To Earth (1.697 AU)
Mar 14 - Asteroid 4969 Lawrence Closest Approach To Earth (1.753 AU)
Mar 14 - Asteroid 30440 Larry Closest Approach To Earth (1.771 AU)
Mar 14 - Asteroid 8623 Johnnygalecki Closest Approach To Earth (1.849 AU)
Mar 14 - Asteroid 2305 King Closest Approach To Earth (1.870 AU)
Mar 14 - Asteroid 308306 Dainere Closest Approach To Earth (3.824 AU)
Mar 14 - Germany Space Generation (SG) Advisory Council Event, Munich, Germany
Mar 14 - Lecture: Constant Aperture, Solid-State, Integrated, Orbital Phased Array (CASSIOPeiA) - A New Paradigm in Space Solar Power/Mars Space Suits, Worcs, United Kingdom
Mar 14 - Star Party at Oracle State Park, Oracle, Arizona
Mar 14 - Heidi Hammel's 60th Birthday (1960)
Mar 14 - Giovanni Schiaparelli's 185th Birthday (1835)
Mar 14-15 - Microsymposium 61: Planets Underground - The Next Frontier in Planetary Exploration, The Woodlands, Texas
Mar 15 - Daylight Saving - Set Clock Ahead 1 Hour (United States)
Mar 15 - GLONASS-M 760 Soyuz-2.1b/Fregat-M Launch
Mar 15 - Comet C/2019 Y1 (ATLAS) Perihelion (0.842 AU)
Mar 15 - Comet 198P/ODAS Closest Approach To Earth (2.666 AU)
Mar 15 - Comet 107P/Wilson-Harrington At Opposition (3.222 AU)
Mar 15 - Comet P/2019 A2 (ATLAS) At Opposition (3.392 AU)
Mar 15 - Comet 229P/Gibbs At Opposition (4.133 AU)
Mar 15 - Comet C/2019 C1 (ATLAS) At Opposition (5.701 AU)
Mar 15 - Aten Asteroid 2018 GY Near-Earth Flyby (0.016 AU)
Mar 15 - Asteroid 293934 MPIA Closest Approach To Earth (1.450 AU)
Mar 15 - Asteroid 2161 Grissom Closest Approach To Earth (2.170 AU)
Mar 15 - Amor Asteroid 2061 Anza Closest Approach To Earth (2.448 AU)
Mar 15 - 60th Anniversary (1960), Kitt Peak National Observatory Dedicated
Mar 16 - Comet 124P/Mrkos Closest Approach To Earth (0.785 AU)
Mar 16 - Comet 296P/Garradd At Opposition (1.552 AU)
Mar 16 - Asteroid 253 Mathilde Occults UCAC4 533-025488 (10.8 Magnitude Star)
Mar 16 - Aten Asteroid 3554 Amun Closest Approach To Earth (1.424 AU)
Mar 16 - Asteroid 5062 Glennmiller Closest Approach To Earth (1.545 AU)
Mar 16 - Asteroid 3534 Sax Closest Approach To Earth (1.693 AU)
Mar 16 - Asteroid 52422 LPL Closest Approach To Earth (1.770 AU)
Mar 16 - Asteroid 13070 Seanconnery Closest Approach To Earth (2.076 AU)
Mar 16 - Asteroid 991 McDonalda Closest Approach To Earth (2.532 AU)
Mar 16 - Asteroid 3202 Graff Closest Approach To Earth (2.703 AU)
Mar 16 - 45th Anniversary (1975), Mariner 10, 3rd Mercury Flyby
Mar 16 - Caroline Herschel's 270th Birthday (1750)
Mar 16-18 - 1st Galileo Solar Space Telescope Workshop, Sao Jose dos Campos, Brazil
Mar 16-18 - Munich Satellite Navigation Summit 2020, Munich, Germany
Mar 16-18 - 8th International Conference on Remote Sensing and Geoinformation of Environment, Paphos, Cyprus
Mar 16-18 - Astro2020 Meeting: Panel on Particle Astrophysics and Gravitation, Irvine, California
Mar 16-19 - 7th North American Carbon Program (NACP) Principal Investigators Meeting, Fairfax, Virginia
Mar 16-19 - 75th Annual Meeting of the Physical Society of Japan, Nagoya, Japan
Mar 16-19 - Spring Annual Meeting of the Astronomical Society of Japan, Tsukuba, Japan
Mar 16-19 - LIGO-Virgo-KAGRA Collaboration Meeting, Lake Geneva, Wisconsin
Mar 16-20 - 51st Lunar and Planetary Science Conference (LPSC), The Woodlands, Texas
Mar 16-20 - Conference: Mapping the X-ray Sky with SRG - First Results from eROSITA and ART-XC, Garching, Germany
Mar 16-20 - Aeolus CAL/VAL & Science Workshop, Darmstadt, Germany
Mar 16-20 - Conference: Data Science in (Astro)Particle Physics and Cosmology - The Bridge to Industry, Coimbra, Portugal
Mar 16-20 - Westlake School in Theoretical Physics: Effective Field Theories, Zhejiang, China
Mar 17 - Comet 249P/LINEAR At Opposition (0.830 AU)
Mar 17 - Comet C/2019 C1 (ATLAS) Closest Approach To Earth (5.701 AU)
Mar 17 - Asteroid 2 Pallas Occults TYC 1045-00319-1 (8.7 Magnitude Star)
Mar 17 -[Feb 23] Asteroid 2734 Hasek Occults HIP 41782 (6.7 Magnitude Star)
Mar 17 - Asteroid 13212 Jayleno Closest Approach To Earth (1.377 AU)
Mar 17 - Asteroid 4279 De Gasparis Closest Approach To Earth (1.494 AU)
Mar 17 - Asteroid 14880 Moa Closest Approach To Earth (1.696 AU)
Mar 17 - Asteroid 5703 Hevelius Closest Approach To Earth (1.835 AU)
Mar 17 - Asteroid 171381 Taipei Closest Approach To Earth (2.290 AU)
Mar 17 - Asteroid 2266 Tchaikovsky Closest Approach To Earth (2.474 AU)
Mar 17 -[Feb 18] Kuiper Object 145480 (2005 TB190) At Opposition (47.240 AU)
Mar 17-19 - Robert H. Goddard Memorial Symposium: Innovation and Sustainable Exploration, Silver Spring, Maryland
Mar 17-19 - 37th National Radio Science Conference, Cairo, Egypt
Mar 17-19 - Workshop: Accurate Flux Calibration for 21st Century Astrophysics, Baltimore, Maryland
Mar 17-19 - Rubin Observatory Algorithms Workshop, Princeton, New Jersey
Mar 17-19 - 37th National Radio Science Conference (NRSC 2020), Cairo, Egypt
Mar 17-19 - Global Aerospace Summit, Abu Dhabi, United Arab Emirates
Mar 17-19 - Astro2020 Meeting: Panel on Electromagnetic Observations from Space, Irvine, California
Mar 18 - OneWeb 3 Soyuz-2.1b/Fregat Launch
Mar 18 - Moon Occults Mars
Mar 18 - Moon Occults Dwarf Planet Pluto
Mar 18 - Comet C/2020 A3 (ATLAS) Closest Approach To Earth (5.232 AU)
Mar 18 - Asteroid 365159 Garching Closest Approach To Earth (1.098 AU)
Mar 18 - Asteroid 1224 Fantasia Closest Approach To Earth (1.705 AU)
Mar 18 - Asteroid 4337 Arecibo Closest Approach To Earth (2.056 AU)
Mar 18 - Asteroid 293909 Matterhorn Closest Approach To Earth (2.060 AU)
Mar 18 - Asteroid 15550 Sydney Closest Approach To Earth (2.338 AU)
Mar 18 - Asteroid 1134 Kepler Closest Approach To Earth (2.845 AU)
Mar 18 - Kuiper Belt Object 2014 YA50 At Opposition (41.082 AU)
Mar 18 -[Feb 21] Binary Kuiper Belt Object 385446 Manwe At Opposition (44.292 AU)
Mar 18 - Lecture: Euclid - How to Measure Dark Energy - ESA's Euclid Mission, Preston, United Kingdom
Mar 18-19 - Meeting: Astronomy from the Moon - The Next Decades, London, United Kingdom
Mar 18-20 - James Webb Space Telescope (JWST) Italian Proposal Preparation Workshop, Bologna, Italy
Mar 18-20 -[Feb 18] Conference: The Frontiers of Physics, Natal, Brazil
Mar 18-20 - Symposium: Earth Explorers for Climate - The Contribution from SMOS, Cornwall, United Kingdom
Mar 18-20 - RUS Copernicus at the APM - Remote Sensing of Environment Workshop, Wroclaw, Poland
Mar 19 - AEHF-6 Atlas 5 Launch
Mar 19 - Comet 320P/McNaught Closest Approach To Earth (2.330 AU)
Mar 19 - Comet 232P/Hill At Opposition (2.576 AU)
Mar 19 - Asteroid 5190 Fry Closest Approach To Earth (1.990 AU)
Mar 19 - Asteroid 2246 Bowell Closest Approach To Earth (2.591 AU)
Mar 19 - Space Summit 2020, Sydney, Australia
Mar 19 - Lecture: Cassini at Saturn - The End of an Era, Salisbury, United Kingdom
Mar 19 - Seminar: Primordial Black Hole Dark Matter from Inflation, Trieste, Italy
Mar 19 - 30th Anniversary (1990), Hiten, Moon Flyby (Japan)
Mar 19 - 55th Anniversary (1965), Canberra Deep Space Communication Complex Opened
Mar 19 - 105th Anniversary (1915), Pluto Photographed By Lowell Observatory (Pre-Discovery Image)
Mar 19-20 -[Feb 25] International Conference on Astronomy and Space Sciences (ICASS 2020), Dubai, United Arab Emirates
Mar 19-20 - Meeting: Astronomy from the Moon - The Next Decades, London, United Kingdom
Mar 20 - Vernal Equinox, 03:50 UT
Mar 20 - Mars Passes 0.7 Degrees From Jupiter
Mar 20 - Comet 279P/La Sagra At Opposition (3.975 AU)
Mar 20 -[Feb 24] Asteroid 1574 Meyer Occults HIP 13654 (3.6 Magnitude Star)
Mar 20 - Asteroid 9620 Ericidle Closest Approach To Earth (1.307 AU)
Mar 20 - Asteroid 477 Italia Closest Approach To Earth (1.825 AU)
Mar 20 - Lecture: Real Images of Exoplanets (None of that Artist Conception Stuff), Pasadena, California
Mar 20 - Night Sky Program, Florissant Fossil Beds National Monument, Florissant, Colorado
Mar 21 - Comet C/2019 J2 (Palomar) Closest Approach To Earth (2.540 AU)
Mar 21 - Apollo Asteroid 11885 Summanus Closest Approach To Earth (0.631 AU)
Mar 21 - Asteroid 163693 Atira Closest Approach To Earth (1.033 AU)
Mar 21 - Star Gazing at the Marsh Event, Collier-Seminole State Park, Naples, Florida
Mar 21 - An Evening Under the Stars, Big Lagoon State Park, Pensacola, Florida
Mar 21 - Stargazing Through Telescopes, Indiana Dunes National Park, Porter, Indiana
Mar 21 - Starrytelling, Copper's Break State Park, Quanah, Texas
Mar 21 - 55th Anniversary (1965), Ranger 9 Launch (Moon Impact Mission)
Mar 21-28 - Conference: Electroweak Interactions & Unified Theories, La Thuile, Italy
Mar 22 - Comet 390P/Gibbs Perihelion (1.700 AU)
Mar 22 - Comet C/2019 JU6 (ATLAS) Closest Approach To Earth (2.945 AU)
Mar 22 - Comet C/2017 K5 (PANSTARRS) Perihelion (7.681 AU)
Mar 22 - Asteroid 3125 Hay Closest Approach To Earth (1.277 AU)
Mar 22 - Asteroid 951 Gaspra Closest Approach To Earth (1.568 AU)
Mar 22 - Asteroid 7273 Garyhuss Closest Approach To Earth (2.116 AU)
Mar 22 - Asteroid 11947 Kimclijsters Closest Approach To Earth (2.657 AU)
Mar 22 - Thomas Pierson's 70th Birthday (1950)
Mar 22-26 - 259th American Chemical Society (ACS) Meeting, Philadelphia, Pennsylvania
Mar 22-27 - Interstellar Shock School, Les Houches, France
Mar 22-28 - Conference: Prospecting for New Physics Through Flavor, Dark Matter, and Machine Learning, Aspen, Colorado
Mar 22-28 - 11th IVS General Meeting, Annapolis, Maryland
Mar 23 - Comet 69P/Taylor At Opposition (2.437 AU)
Mar 23 - Comet 347P/PANSTARRS At Opposition (4.023 AU)
Mar 23 - Comet C/2020 A3 (ATLAS) At Opposition (5.237 AU)
Mar 23 - Atira Asteroid 164294 (2004 XZ130) Closest Approach To Earth (0.637 AU)
Mar 23 - Asteroid 3341 Hartmann Closest Approach To Earth (2.724 AU)
Mar 23 - 55th Anniversary (1965), Gemini 3 Launch (Virgil Grissom, John Young)
Mar 23-25 - 55th 3AF International Conference on Applied Aerodynamics (AERO 2020), Poitiers, France
Mar 23-26 - Workshop: The Quantum and the Cosmos, Trieste, Italy
Mar 23-26 - 7th North American Carbon Program (NACP) Open Science Meeting, McLean, Virginia
Mar 23-27 - IAU Symposium 360: Astronomical Polarimetry 2020 - New Era of Multi-Wavelength Multi-Wavelength Polarimetry, Hiroshima, Japan
Mar 23-27 - Workshop: The Heliosphere in the Local Interstellar Medium, Bern, Switzerland
Mar 23-27 - Space2Connect Conference, Noordwijk, The Netherlands
Mar 23-27 - 9th VERSIM Workshop, Kyoto, Japan
Mar 23-27 - Parker One Solar Probe Meeting, Laurel, Maryland
Mar 23-27 - SOLARNET School: A Holistic View of the Solar Atmosphere - Combining Space and Ground-based Observations, Dorking, United Kingdom
Mar 23-30 - Program: Holography - From High-Energy Physics to Quantum Information, Moscow, Russia
Mar 23-Apr 03 - 59th Session of the Legal Subcommittee of the Office of Outer Space Affairs, Vienna, Austria
Mar 24 - SSMS (POC)/ ESAIL/ Athena/ ION CubeSat Carrier/ NEMO-HD/ GHGSat C1/ Astrocast 1.1-1.10/ PICASSO/ SIMBA/ DIDO 3/ QARMAN/ TRISAT Vega Launch
Mar 24 - Mercury At Its Greatest Western Elongation (28 Degrees)
Mar 24 - Venus At Its Greatest Eastern Elongation (46 Degrees)
Mar 24 - Comet 10P/Tempel At Opposition (2.314 AU)
Mar 24 - Comet 369P/Hill At Opposition (3.322 AU)
Mar 24 - Asteroid 6268 Versailles Closest Approach To Earth (1.435 AU)
Mar 24 - Asteroid 3124 Kansas Closest Approach To Earth (1.935 AU)
Mar 24 - Asteroid 2919 Dali Closest Approach To Earth (2.207 AU)
Mar 24 - Asteroid 56678 Alicewessen Closest Approach To Earth (2.426 AU)
Mar 24 - Lecture: Titan - The Moon that Thinks It's a Planet, Liverpool, United Kingdom
Mar 24 - Experience the Night - Dark Night Skies, Tumacacori National Historical Park, Tumacacori, Arizona
Mar 24 - Joseph Stefan's 185th Birthday (1835)
Mar 24 - Edmond Becqueral's 200th Birthday (1820)
Mar 24-25 - Eyes on Earth Roadshow, Bucharest, Romania
Mar 24-26 - 23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference, Montreal, Canada
Mar 24-26 - 2nd AI and Data Science Workshop for Earth and Space Sciences, Pasadena, California
Mar 24-26 - Decadal Survey on Astronomy and Astrophysics 2020 (Astro2020) Meeting, Washington DC
Mar 24-26 -[Feb 19] 10th ESA Climate Change Initiative (CCI) Colocation Meeting, Oxford, United Kingdom
Mar 24-27 - Workshop: New Directions in Cosmology, Tokyo, Japan
Mar 25 - Comet 373P/Rinner At Opposition (2.256 AU)
Mar 25 - Comet C/2020 B3 (Rankin) At Opposition (2.650 AU)
Mar 25 - Comet 205P-A/Giacobini At Opposition (3.673 AU)
Mar 25 - Comet 205P/Giacobini At Opposition (3.684 AU)
Mar 25 - Comet 205P-C/Giacobini At Opposition (3.684 AU)
Mar 25 - Asteroid 25924 Douglasadams Closest Approach To Earth (1.309 AU)
Mar 25 - Lecture: Understanding 99% of the Universe, One Particle at a Time, Washgingon DC
Mar 25 - 20th Anniversary (2000), IMAGE Launch
Mar 25 - Friedrich Schwassmann's 150th Birthday (1870)
Mar 25 - Pierre Weiss' 155th Birthday (1865)
Mar 25 - 365th Anniversary (1655), Christiaan Huygens' Discovery of Saturn Moon Titan
Mar 25-26 - 3rd Space Academy, Rome, Italy
Mar 25-28 - 14th Dark Matter Symposium, Los Angeles, California
Mar 26 - ELanA 32 (ANDESITE) Electron Launch
Mar 26 - Comet 98P/Takamizawa Closest Approach To Earth (2.071 AU)
Mar 26 - Comet C/2019 T5 (ATLAS) At Opposition (2.300 AU)
Mar 26 -[Feb 25] Asteroid 253 Mathilde Occults UCAC4 535-027802 (13.1 Magnitude Star)
Mar 26 - Apollo Asteroid 4581 Asciepius Near-Earth Flyby (0.070 AU)
Mar 26 - Asteroid 16740 Kipthorne Closest Approach To Earth (1.188 AU)
Mar 26 - Asteroid 5748 Davebrin Closest Approach To Earth (1.634 AU)
Mar 26 - Dwarf Planet 136472 Makemake At Opposition (51.699 AU)
Mar 26 - 2020 e-Workshop on Instrumentation and Calibration in Radio Astronomy, Stellenbosch, South Africa and Eindhoven, Netherlands
Mar 26 - Max Abraham's 145th Birthday (1875)
Mar 26 - 180th Anniversary (1840), 1st Moon Photo Taken by John Draper
Mar 26-29 - Conference: Collider, Dark Matter, and Neutrino Physics 2020, College Station, Texas
Mar 26-29 - Meeting: Exploring Social and Conceptual Issues in Astrobiology and Space Exploration (SSoCIA 2020), Oxford, Mississippi
Mar 26-Apr 03 - Spring School on Superstring Theory and Related Topics, Trieste, Italy
Mar 27 - Comet 91P/Russell At Opposition (1.969 AU)
Mar 27 - Comet 246P/NEAT At Opposition (2.391 AU)
Mar 27 - Comet 198P/ODAS At Opposition (2.688 AU)
Mar 27 - Apollo Asteroid 2012 XA133 Near-Earth Flyby (0.045 AU)
Mar 27 - Asteroid 1225 Ariane Closest Approach To Earth (1.181 AU)
Mar 27 - Asteroid 30785 Greeley Closest Approach To Earth (1.694 AU)
Mar 27 - Asteroid 16046 Gregnorman Closest Approach To Earth (1.735 AU)
Mar 27 - Asteroid 8958 Stargazer Closest Approach To Earth (1.892 AU)
Mar 27 - Asteroid 4716 Urey Closest Approach To Earth (1.978 AU)
Mar 27 - Asteroid 109330 Clemente Closest Approach To Earth (2.249 AU)
Mar 27 - Kuiper Belt Object 58534 Logos At Opposition (42.431 AU)
Mar 27 - John Pierce's 110th Birthday (1910)
Mar 27 - Wilhelm Rontgen's 175th Birthday (1845)
Mar 28 - Earth Hour
Mar 28 - Hyperbolic Object A/2018 V3 Closest Approach To Earth (2.135 AU)
Mar 28 - Atira Asteroid 2015 ME131 Closest Approach To Earth (0.461 AU)
Mar 28 - Asteroid 3 Juno Closest Approach To Earth (2.057 AU)
Mar 28 - Griffith Observatory Public Star Party, Los Angeles, California
Mar 28 - Jerome Friedman's 90th Birthday (1930)
Mar 28-30 - Space Generation Fusion Forum 2020, Colorado Springs, Colorado
Mar 28-Apr 04 - 55th Rencontres de Moriond on Cosmology, La Thuile, Italy
Mar 29 - European Summer Time - Set Clock Ahead 1 Hour (European Union)
Mar 29 - Moon Occults Asteroid 4 Vesta
Mar 29 - Comet C/2018 KJ3 (Lemmon) Closest Approach To Earth (3.391 AU)
Mar 29 - Aten Asteroid 2010 GD35 Near-Earth Flyby (0.039 AU)
Mar 29 - Binary Aten Asteroid 153931 (2000 EA107) Closest Approach To Earth (0.631 AU)
Mar 29 - Asteroid 5676 Voltaire Closest Approach To Earth (1.925 AU)
Mar 29 - Harold Jones' 130th Birthday (1890)
Mar 29-Apr 03 - 9th International Fermi Symposium, Johannesburg, South Africa
Mar 29-Apr 03 - 84th DPG Spring Meeting of the German Physical Society: Matter and Cosmos, Bonn, Germany
Mar 30 - Ekspress 80/ Ekspress 103 Proton-M Briz-M Launch
Mar 30 -[Feb 22] SAOCOM 1B/ SARE-1B 1-4 Falcon 9 Launch
Mar 30 -[Feb 22] GSAT-32 GSLV Launch
Mar 30 - Comet P/2019 A7 (PANSTARRS) Closest Approach To Earth (2.678 AU)
Mar 30 - Comet 36P/Whipple At Opposition (4.037 AU)
Mar 30 - Aten Asteroid 2006 FH36 Near-Earth Flyby (0.029 AU)
Mar 30 - Asteroid 945 Barcelona Closest Approach To Earth (1.719 AU)
Mar 30 - Asteroid 671 Carnegia Closest Approach To Earth (2.116 AU)
Mar 30 - Asteroid 214772 UNICEF Closest Approach To Earth (2.244 AU)
Mar 30-Apr 01 - Conference: Multi-line Diagnostics of the Interstellar Medium in Galaxies, Nice, France
Mar 30-Apr 01 - 3rd International Workshop on Stratospheric Sulfur and its Role in Climate (SSiRC), Leeds, United Kingdom
Mar 30-Apr 01 - BlueMUSE Science Workshop, Lyon, France
Mar 30-Apr 02 - 36th Space Symposium, Colorado Springs, Colorado
Mar 30-Apr 02 - Conference: Fundamental Physics at 21 cm, Trieste, Italy
Mar 30-Apr 03 - Conference: Science with the Hubble and James Webb Space Telescopes VI - Entering a Golden Age for UV-Optical-IR Space Astronomy, Stockholm, Sweden
Mar 30-Apr 03 -[Feb 22] Workshop: Where the Star Formation Ends, Leiden, The Netherlands
Mar 30-Apr 03 - PHAROS Conference 2020: The Multi Messenger Physics and Astrophysics of Neutron Stars, Patras, Greece
Mar 30-Apr 03 - 16th Spacecraft Charging and Technology Conference (SCTC 2020), Cocoa Beach, Florida
Mar 30-Apr 03 - Adaptive Optics Workshop Week @ Porto 2020, Porto, Portugal
Mar 30-Apr 03 - Workshop: Thermal Infrared Astronomy at ESO and Worldwide - Science Highlights, Technological Developments and an Outlook to the Next Decade, Garching, Germany
Mar 30-Apr 03 - 16th Rencontres du Vietnam: Climate Change in the Asia-Pacific Region - From Environmental Aspects to Socio-Economic Impacts, Quy Nhon, Vietnam
Mar 30-Apr 03 - Workshop: Pulsations in Intermediate-mass, Massive and/or Multiple Stars, Surrey, United Kingdom
Mar 30-Apr 03 - Workshop: Integrability, Dualities and Deformations, Santiago de Compostela, Spain
Mar 30-Apr 03 - Conference: Algebraic Structures in Perturbative Quantum Field Theory, Bures-sur-Yvette, France
Mar 30-Apr 04 - Las Cruces Space Festival, Las Cruces, New Mexico
Mar 31 - NROL-129 Minotaur IV Launch
Mar 31 -[Feb 22] Anasis-II Falcon 9 Launch
Mar 31 - Mars Passes 0.9 Degrees From Saturn
Mar 31 - Comet P/2019 A7 (PANSTARRS) At Opposition (2.678 AU)
Mar 31 - Atira Asteroid 2013 TQ5 Closest Approach To Earth (0.412 AU)
Mar 31 - Asteroid 12477 Haiku Closest Approach To Earth (1.177 AU)
Mar 31 - Asteroid 25 Phocaea Closest Approach To Earth (1.669 AU)
Mar 31 - Asteroid 270553 Loureed Closest Approach To Earth (1.780 AU)
Mar 31 - Asteroid 5540 Smirnova Closest Approach To Earth (2.332 AU)
Mar 31 - Asteroid 216 Kleopatra (2 Moons) Closest Approach To Earth (2.405 AU)
Mar 31 - Neptune Trojan 316179 (2010 EN65) At Opposition (26.360 AU)
Mar 31 - 15th Anniversary (2005), Mike Brown, et al's Discovery of Dwarf Planet Makemake
Mar 31 - 1620th Anniversary (400 AD), Comet C/400 F1 Near-Earth Flyby (29.8 Lunar Distance)
Mar 31-Apr 01 - SOLARNET Public Engagement Training Workshop, Newcastle, United Kingdom
Mar 31-Apr 01 -[Feb 23] Sub-regional Workshop on Integrated Geospatial Information Management, Nuku'alofa, Kingdom of Tonga
Mar 31-Apr 02 - Space Science Week, Washington DC
Mar 31-Apr 05 - FIDAE 2020 International Air & Space Fair, Santiago, Chile

April 2020

Apr ?? - Starliner 3 (CTS-1/USCV 3) Atlas 5 Launch (International Space Station)
Apr ?? - Nusantara Satu-2 CZ-3B Launch
Apr ?? - ALOS-3 H-2A Launch
Apr ?? - DFAST Demonstrator/DREAM Firefly Alpha Launch (Maiden Launch)
Apr ?? -[Feb 21] SkySat 16-18 Falcon 9 Launch
Apr 01 - Comet 392P/LINEAR Perihelion (1.950 AU)
Apr 01 - Comet P/2005 L1 (McNaught) At Opposition (2.899 AU)
Apr 01 - Comet 355P/LINEAR-NEAT At Opposition (4.026 AU)
Apr 01 - 60th Anniversary (1960), Tiros 1 Launch (1st Weather Satellite)
Apr 02 - Comet 87P/Bus At Opposition (1.118 AU)
Apr 02 - Comet P/2019 Y2 (Fuls) Closest Approach To Earth (1.180 AU)
Apr 02 - Comet 327P/Van Ness At Opposition (4.279 AU)
Apr 02 - Apollo Asteroid 2019 GM1 Near-Earth Flyby (0.023 AU)
Apr 02 - Asteroid 39882 Edgarmitchell Closest Approach To Earth (1.351 AU)
Apr 02 - Asteroid 13208 Fraschetti Closest Approach To Earth (1.694 AU)
Apr 02 - 175th Anniversary (1845), 1st Photo of Sun taken by Louis Fizeau & Leon Foucault
Apr 02-03 - 1st South Eastern Europe (SEE) Space Conference, Belgrade, Serbia
Apr 03 - Mercury Passes 1.4 Degrees From Neptune
Apr 03 - Venus Passes 0.3 Degrees from the Pleiades
Apr 03 - Comet 82P/Gehrels Closest Approach To Earth (3.074 AU)
Apr 03 - Asteroid 15332 CERN Closest Approach To Earth (1.450 AU)
Apr 03 - Asteroid 22903 Georgeclooney Closest Approach To Earth (1.924 AU)
Apr 03 - Asteroid 245983 Machholz Closest Approach To Earth (2.231 AU)
Apr 03 - Asteroid 4772 Frankdrake Closest Approach To Earth (2.363 AU)
Apr 03 - Lecture: The Circumgalactic Medium - The Gas Around Galaxies, Pasadena, California
Apr 04 - Comet C/2018 X2 (Fitzsimmons) Closest Approach To Earth (2.881 AU)
Apr 04 - Comet 59P/Kearns-Kwee At Opposition (3.344 AU)
Apr 04 - Asteroid 2 Pallas Occults UCAC4 514-095716 (12.1 Magnitude Star)
Apr 04 - Apollo Asteroid 2015 FC35 Near-Earth Flyby (0.027 AU)
Apr 04 - Asteroid 90125 Chrissquire Closest Approach To Earth (1.600 AU)
Apr 04 - Asteroid 4370 Dickens Closest Approach To Earth (1.635 AU)
Apr 04 - Asteroid 6 Hebe Closest Approach To Earth (1.951 AU)
Apr 04 - Amor Asteroid 7358 Oze Closest Approach To Earth (2.240 AU)
Apr 04 - Asteroid 3174 Alcock Closest Approach To Earth (2.354 AU)
Apr 04 - Asteroid 300221 Brucebills Closest Approach To Earth (2.595 AU)
Apr 04 - Apollo 13 50th Anniversary Lectures: Honouring the Past - Prospects for the Future, Sutton Coldfield, United Kingdom
Apr 05 - Comet C/2019 J3 (ATLAS) At Opposition (2.999 AU)
Apr 05 - Centaur Object 31824 Elatus At Opposition (15.230 AU)
Apr 05 - 10th Anniversary (2010), STS-131 Launch (Space Shuttle Discovery, ISS)
Apr 05 - 30th Anniversary (1990), 1st Pegasus Rocket Launch
Apr 05 - Franklin Chang-Diaz's 70th Birthday (1950)
Apr 05 - Donald Lynden-Bell's 85th Birthday (1935)
Apr 06 - Comet C/2002 R5 (SOHO) Closest Approach To Earth (1.564 AU)
Apr 06 - Comet 82P/Gehrels At Opposition (3.075 AU)
Apr 06 - Asteroid 7032 Hitchcock Closest Approach To Earth (1.328 AU)
Apr 06 - Asteroid 1373 Cincinnati Closest Approach To Earth (3.693 AU)
Apr 06 - 55th Anniversary (1965), Intelsat 1 Launch (1st Commercial Communications Satellite)
Apr 06 - Andre-Louis Danjon's 130th Birthday (1890)
Apr 06-08 - 2020 NASA Fundamental Physics and Quantum Technology Workshop, Ventura, California
Apr 06-08 - 15th Iberian Cosmology Meeting (IberiCOS 2020), Coimbra, Portugal
Apr 06-08 - 6th UK Exoplanet Community Meeting 2020, Birmingham, United Kingdom
Apr 06-08 -[Feb 18] IRN Terascale@Clermont Meeting, Ferrand, France
Apr 06-10 - Conference: Cosmic Cartographcy 2020: Exploring the Cosmic Web and Large-Scale Structure, Kashiwa, Japan
Apr 07 - Comet 87P/Bus Closest Approach To Earth (1.115 AU)
Apr 07 - Comet 278P/McNaught At Opposition (1.408 AU)
Apr 07 - Comet 91P/Russell Closest Approach To Earth (1.952 AU)
Apr 07 - Comet 246P/NEAT Closest Approach To Earth (2.376 AU)
Apr 07 - Comet P/2005 T2 (Christensen) Perihelion (2.245 AU)
Apr 07 - Hyperbolic Object A/2019 S4 Perihelion (3.442 AU)
Apr 07 - Asteroid 2864 Soderblom Closest Approach To Earth (1.475 AU)
Apr 07 - Asteroid 55555 DNA Closest Approach To Earth (1.801 AU)
Apr 07 - Asteroid 10792 Ecuador Closest Approach To Earth (2.281 AU)
Apr 07 - Asteroid 41488 Sinbad Closest Approach To Earth (2.968 AU)
Apr 07 - 30th Anniversary (1990), Glanerbrug Meteorite Fall (Hit House in The Netherlands)
Apr 07-09 - 2nd European Physical Society Conference on Gravitation: Measuring Gravity, London, United Kingdom
Apr 07-09 - Geospatial World Forum, Amsterdam, The Netherlands
Apr 08 - Supermoon
Apr 08 - Mars Autumnal Equinox
Apr 08 - Comet 210P/Christensen Perihelion (0.528 AU)
Apr 08 - Comet P/2019 Y2 (Fuls) At Opposition (1.184 AU)
Apr 08 - Comet P/2005 L1 (McNaught) Closest Approach To Earth (2.891 AU)
Apr 08 - Comet C/2019 JU6 (ATLAS) At Opposition (3.015 AU)
Apr 08 - Comet P/2014 R5 (Lemmon-PANSTARRS) At Opposition (3.988 AU)
Apr 08 - Asteroid 11341 Babbage Closest Approach To Earth (1.345 AU)
Apr 08 - Amor Asteroid 16064 Davidharvey Closest Approach To Earth (2.141 AU)
Apr 08 - Centaur Object 944 Hidalgo At Opposition (3.722 AU)
Apr 08 - 40th (1980), Brad Smith, et al's Discovery of Saturn Moon Telesto
Apr 08 - 60th Anniversary (1960), Project Ozma (1st Radio SETI by Frank Drake)
Apr 08 - Andrew Graham's 205th Birthday (1815)
Apr 09 - Soyuz MS-16 Soyuz FG Launch (International Space Station 62S)
Apr 09 - Comet 88P/Howell At Opposition (1.183 AU)
Apr 09 - Comet P/2017 S9 (PANSTARRS) At Opposition (3.137 AU)
Apr 09 - Asteroid 5203 Pavarotti Closest Approach To Earth (1.332 AU)
Apr 09 - Asteroid 8088 Australia Closest Approach To Earth (1.636 AU)
Apr 09 - Kuiper Belt Object 523693 (2014 FT71) At Opposition (46.490 AU)
Apr 09 - Kuiper Belt Object 2013 FS28 At Opposition (82.554 AU)
Apr 09 - Colloquia: Constraining Planet Formation with Spectroscopy of Direct Imaged Planets, Ithaca, New York
Apr 09-10 -[Feb 25] International Conference on Astronomy and Space Sciences (ICASS 2020), Athens, Greece
Apr 10 - Composante Spatiale Optique-2 (CSO-2) Soyuz ST-A/Fregat-M Launch
Apr 10 - Comet 322P/SOHO Closest Approach To Earth (2.378 AU)
Apr 10 - Comet C/2018 KJ3 (Lemmon) At Opposition (3.419 AU)
Apr 10 - Aten Asteroid 2019 HM Near-Earth Flyby (0.019 AU)
Apr 10 - Asteroid 334 Chicago Closest Approach To Earth (2.874 AU)
Apr 10 - 140th Anniversary (1880), Johann Palisa's Discovery of Asteroid 216 Kleopatra
Apr 11 - Comet 10P/Tempel Closest Approach To Earth (2.267 AU)
Apr 11 - Comet C/2019 J2 (Palomar) At Opposition (2.634 AU)
Apr 11 - Comet 164P/Christensen A At Opposition (3.748 AU)
Apr 11 - Apollo Asteroid 363599 (2004 FG11) Near-Earth Flyby (0.049 AU)
Apr 11 - Apollo Asteroid 3671 Dionysus Closest Approach To Earth (0.987 AU)
Apr 11 - Asteroid 51825 Davidbrown Closest Approach To Earth (2.129 AU)
Apr 11 - 50th Anniversary (1970), Apollo 13 Launch
Apr 11-16 - International Workshop on Unveiling the Low Surface Brightness Universe - Observational and Reproducibility Challenges, Tehran, Iran
Apr 12 - Yuri's Night: World Space Party
Apr 12 - International Day of Human Space Flight
Apr 12 - Easter Sunday
Apr 12 - Comet 44P/Reinmuth At Opposition (3.564 AU)
Apr 12 - Apollo Asteroid 3360 Syrinx Closest Approach To Earth (0.480 AU)
Apr 12 - Asteroid 218998 Navi Closest Approach To Earth (1.241 AU)
Apr 12 - Asteroid 4150 Starr Closest Approach To Earth (1.397 AU)
Apr 12 - Asteroid 1094 Siberia Closest Approach To Earth (1.636 AU)
Apr 12 - Asteroid 5040 Rabinowitz Closest Approach To Earth (1.676 AU)
Apr 12 - Asteroid 7100 Martin Luther Closest Approach To Earth (1.967 AU)
Apr 12 - Asteroid 1345 Potomac Closest Approach To Earth (2.948 AU)
Apr 12 - 35th Anniversary (1985), STS-51-D Launch (Space Shuttle Discovery, Senator Jake Garn)
Apr 12-17 - 22nd IEEE Real Time Conference, Quy Nhon, Vietnam
Apr 13 - BepiColombo, Earth Flyby
Apr 13 - Comet 171P/Spahr Closest Approach To Earth (2.836 AU)
Apr 13 - Asteroid 8208 Volta Closest Approach To Earth (1.764 AU)
Apr 13 - Asteroid 878 Mildred Closest Approach To Earth (1.858 AU)
Apr 13 - Asteroid 1618 Dawn Closest Approach To Earth (1.859 AU)
Apr 13 - 60th Anniversary (1960), Transit 1B Launch (1st Experimental Navigation Satellite)
Apr 13 - Bruno Rossi's 115th Birthday (1905)
Apr 13 - Richard Assmann's 175th Birthday (1845)
Apr 13-15 - Workshop: Time-Domain Cosmology with Strong Gravitational Lensing, Kashiwa, Japan
Apr 13-17 - Workshop: Nebulae - Deep-Space Computing Clouds - Part 2, Pasadena, California
Apr 13-17 - 22nd IEEE Real Time Conference, Quy Nhon, Vietnam
Apr 13-17 - 6th Oukaimeden International School for Astrophysics (OISA), Marrakech, Morocco
Apr 13-18 - Alpine LHC Physics Summit 2020 (ALPS 2020), Obergurgl, Austria
Apr 14 - Moon Occults Dwarf Planet Pluto
Apr 14 - Apollo Asteroid 6239 Minos Closest Approach To Earth (0.319 AU)
Apr 14 - Asteroid 13188 Okinawa Closest Approach To Earth (1.005 AU)
Apr 14 - Asteroid 2247 Hiroshima Closest Approach To Earth (1.710 AU)
Apr 14 - Luigi Carnera's 145th Birthday (1875)
Apr 14-16 -[Feb 22] 5th Titan Through Time Workshop, Boulder, Colorado
Apr 14-18 - Research School on Random Geometry and Quantum Gravity, Marseille, France
Apr 15 - Comet 313P/Gibbs Perihelion (2.419 AU)
Apr 15 - Comet P/2019 A6 (Lemmon-PANSTARRS) At Opposition (4.171 AU)
Apr 15 - Asteroid 7462 Grenoble Closest Approach To Earth (1.347 AU)
Apr 15 - Amor Asteroid 4954 Eric Closest Approach To Earth (1.790 AU)
Apr 15 - Lecture: Apollo 13: Survival in Space, London, United Kingdom
Apr 15 - Lecture: Meltwater on the Greenland Ice Sheet - Source, Path and Fate, Washington DC
Apr 15 - Tim Spahr's 50th Birthday (1970)
Apr 15-17 - 8th European Space Cryogenics Workshop, Noordwijk, The Netherlands
Apr 15-17 -[Feb 22] 38th Meeting of the Mars Exploration Program Analysis Group (MEPAG), Washington DC
Apr 15-17 - Meeting: From Science to Operations for the Copernicus Imaging Microwave Radiometer (CIMR) Mission, Noordwijk, The Netherlands
Apr 16 - Hyperbolic Object A/2018 V3 At Opposition (2.233 AU)
Apr 16 - Comet 240P/NEAT At Opposition (3.642 AU)
Apr 16 - Comet C/2019 B3 (PANSTARRS) At Opposition (6.543 AU)
Apr 16 - Asteroid 3 Juno Occults UCAC4 469-046694 (12.1 Magnitude Star)
Apr 16 - Apollo Asteroid 469219 Kamo`oalewa Closest Approach To Earth (0.156 AU)
Apr 16 - Asteroid 13609 Lewicki Closest Approach To Earth (1.568 AU)
Apr 16 - Asteroid 9997 COBE Closest Approach To Earth (1.756 AU)
Apr 16 - Asteroid 214476 Stephencolbert Closest Approach To Earth (2.195 AU)
Apr 16 - Asteroid 2598 Merlin Closest Approach To Earth (2.287 AU)
Apr 16 - Dwarf Planet 136108 Haumea At Opposition (49.456 AU)
Apr 16 - Lecture: How NASA Observes Earth from Air & Orbit, Pasadena, California
Apr 16 - Petrus Apianus' 525th Birthday (1495)
Apr 16-17 - Workshop: LISA in Norway and Scandinavia, Stavanger, Norway
Apr 16-19 - Symposium/Workshop: Astrobiology Graduates in Europe (AbGradEPEC)/Europlanet Early Career (EPEC) Network, La Palma Island, Canary Islands, Spain
Apr 17 - Apollo Asteroid 4660 Nereus Closest Approach To Earth (0.935 AU)
Apr 17 - Asteroid 7079 Baghdad Closest Approach To Earth (1.531 AU)
Apr 17 - Asteroid 15092 Beegees Closest Approach To Earth (2.007 AU)
Apr 17 - Royal Astronomical Society (RAS) Ordinary Meeting, London, United Kingdom
Apr 17 - Meeting: Is the Study of the CGM Fulfilling its Promise of Revealing the Processes that Drive Galaxy Evolution?, London, United Kingdom
Apr 17 - Meeting: System-scale Observations and Modelling of Solar Wind-Magnetosphere-Ionosphere-Thermosphere Coupling, London, United Kingdom
Apr 17 - Lecture: How NASA Observes Earth from Air & Orbit, Pasadena, California
Apr 18 - Comet 185P/Petriew At Opposition (4.134 AU)
Apr 18 - Atira Asteroid 2013 JX28 Closest Approach To Earth (0.200 AU)
Apr 18 - Asteroid 6032 Nobel Closest Approach To Earth (1.599 AU)
Apr 18 - Asteroid 7028 Tachikawa Closest Approach To Earth (1.972 AU)
Apr 18 - Asteroid 134369 Sahara Closest Approach To Earth (2.960 AU)
Apr 18 - Conference: Current Topics In Rocket Propulsion 2, Buckinghamshire, United Kingdom
Apr 18 - Dinosaur Valley State Park Star Party, Glen Rose, Texas
Apr 18 - Stargazing Through Telescopes, Indiana Dunes National Park, Porter, Indiana
Apr 18-19 -[Feb 24] 2nd Expert Meeting of the Working Group on Legal and Policy Frameworks and Policy Frameworks for Geospatial Information Management, Windsor, United Kingdom
Apr 18-21 - American Physical Society (APS) April Meeting, Washington DC
Apr 19 - Asteroid 85047 Krakatau Closest Approach To Earth (0.993 AU)
Apr 19 - Asteroid 73520 Boslough Closest Approach To Earth (2.257 AU)
Apr 19 - 45th Anniversary (1975), Aryabhata Launch (India's First Satellite)
Apr 19-24 - European Conference on Laboratory Astrophysics ECLA 2020: Linking Dust, Ice and Gas in Space, Anacapri, Capri Island, Italy
Apr 19-24 - Conference: Growing Black Holes - Accretion and Mergers, Kathmandu, Nepal
Apr 20 - Comet 296P/Garradd Closest Approach To Earth (1.447 AU)
Apr 20 - Comet 266P/Christensen Perihelion (2.335 AU)
Apr 20 - Asteroid 2952 Lilliputia Closest Approach To Earth (1.695 AU)
Apr 20 - Amor Asteroid 21088 Chelyabinsk Closest Approach To Earth (2.171 AU)
Apr 20 - Donald Pettit's 65th Birthday (1955)
Apr 20-22 - Hera Community Workshop, Nice, France
Apr 20-22 - OPTICON-CSIC Workshop: The Future of MOS Technologies, Brussels, Belgium
Apr 20-22 - 6th High Level Forum on United Nations Global Geospatial Information Management (UN-GGIM), Windsor, United Kingdom
Apr 20-22 - 3rd NCSP DKIST Data-Training Workshop: Preparing for DKIST - Milne-Eddington Spectro-polarimetric Inversions, Fairfax, Virginia
Apr 20-23 - Earth and Space 2020 Conference, Seattle, Washington
Apr 20-23 - CryoSat 10th Anniversary Science Conference, Sicily, Italy
Apr 20-23 - Symposium: The Local Group - Assembly and Evolution, Baltimore, Maryland
Apr 20-23 -[Feb 18] Workshop: Cosmography via Gravitational Wave Sources and Other Observables, Stavanger, Norway
Apr 20-23 - 15th International Astronomical Consortium for High Energy Calibration (IACHEC) Meeting, Pembroke, Virginia
Apr 20-24 - Biennial European Astrobiology Conference (BEACON), La Palma Island, Canary Islands, Spain
Apr 20-24 - Extreme Galaxies and their Extreme Environments as Probes of Galaxy Formation Conference, Reykjavik, Iceland
Apr 20-24 - Conference: The Sharpest Eyes on the Sky - A 2020 Vision for High Angular Resolution Astronomy, Exeter, United Kingdom
Apr 20-24 - 2nd International Conference on High-Speed Vehicle Science & Technology (HiSST 2020), Bruges, Belgium
Apr 20-24 - Space Weather Workshop, Boulder, Colorado
Apr 20-24 - 4th Zeldovich Meeting, Minsk, Belarus
Apr 20-24 - Executive Space Course, Strasbourg, France
Apr 20-25 - 27th Young Scientists' Conference on Astronomy and Space Physics, Kyiv, Ukraine
Apr 20-25 - Frontiers of Holographic Duality Conference, Moscow, Russia
Apr 21 - Comet P/2016 G1 (PANSTARRS) At Opposition (1.595 AU)
Apr 21 - Comet 169P/NEAT At Opposition (3.593 AU)
Apr 21 - Comet P/2014 W12 (Gibbs) At Opposition (2.652 AU)
Apr 21 - Asteroid 9769 Nautilus Closest Approach To Earth (1.033 AU)
Apr 21 - Asteroid 8664 Grigorijrichters Closest Approach To Earth (1.176 AU)
Apr 21 - Amor Asteroid 11284 Belenus Closest Approach To Earth (0.675 AU)
Apr 21 - Asteroid 5256 Farquhar Closest Approach To Earth (1.590 AU)
Apr 21 - Kuiper Belt Object 38083 Rhadamanthus At Opposition (40.393 AU)
Apr 21-22 - AIAA SOSTC Improving Space Operations Workshop 2020, Suitland, Maryland
Apr 21-23 - 34th European Frequence and Time Forum (EFTF 2020), Noordwijk, The Netherlands
Apr 21-24 - 47th IOP Plasma Physics Conference, London, United Kingdom
Apr 22 - Earth Day
Apr 22 - Lyrids Meteor Shower Peak
Apr 22 - Comet 278P/McNaught Closest Approach To Earth (1.378 AU)
Apr 22 - Asteroid 2597 Arthur Closest Approach To Earth (2.466 AU)
Apr 22 - Centaur Object 472235 Zhulong At Opposition (32.391 AU)
Apr 22 - Experience the Night - Dark Night Skies, Tumacacori National Historical Park, Tumacacori, Arizona
Apr 22-24 - Strings, Cosmology and Gravity Student Conference (SCGSG 2020), Amsterdam, The Netherlands
Apr 22-24 - Task Force on Hemispheric Transport of Air Pollution (TF HTAP) Meeting, Edinburgh, Scotland
Apr 22-26 - EURASIA Airshow 2020, Antalya, Turkey
Apr 23 - Comet 176P/LINEAR At Opposition (2.785 AU)
Apr 23 - Comet 377P/Scotti At Oppositon (4.021 AU)
Apr 23 - Asteroid 757 Portlandia Closest Approach To Earth (1.580 AU)
Apr 23 -[Feb 23] Asteroid 24 Themis Closest Approach To Earth (1.973 AU)
Apr 23 - ESA Practitioners' Forum 2020, Darmstadt, Germany
Apr 23 - Lecture: How Oceans Influence the Climate, Liverpool, United Kingdom
Apr 23-24 - Workshop: Apophis T-9 Years - Knowledge Opportunities for the Science of Planetary Defense, Nice, France
Apr 23-24 - Bill Feldman Symposium, Los Alamos, New Mexico
Apr 24 - Asteroid 3656 Hemingway Closest Approach To Earth (0.966 AU)
Apr 24 - Asteroid 8990 Compassion Closest Approach To Earth (1.883 AU)
Apr 24 - ESA Young Lawyers' Symposium 2020, Darmstadt, Germany
Apr 24 - (International VLBI Service for Geodesy and Astrometry (IVS) echnology Development Center Symposium, Kashima, Japan
Apr 24 - 9th New England String Meeting, Providence, Rhode Island
Apr 24 - Night Sky Program, Florissant Fossil Beds National Monument, Florissant, Colorado
Apr 24-25 - World Microbiology Summit, New York, New York
Apr 24-25 - ActInSpace Contest,
Apr 25 - Comet 176P/LINEAR Closest Approach To Earth (2.785 AU)
Apr 25 - Comet 15P/Finlay At Opposition (3.202 AU)
Apr 25 - Comet 377P/Scotti Closest Approach To Earth (4.021 AU)
Apr 25 - Asteroid 29132 Bradpitt Closest Approach To Earth (1.450 AU)
Apr 25 - Asteroid 2039 Payne-Gaposchkin Closest Approach To Earth (2.047 AU)
Apr 25 - Asteroid 118401 LINEAR Closest Approach To Earth (2.785 AU)
Apr 25 - Asteroid 6042 Chesirecat Closest Approach To Earth (3.345 AU)
Apr 25 - Neptune Trojan 2013 RL12 At Opposition (30.375 AU)
Apr 25 - Griffith Observatory Public Star Party, Los Angeles, California
Apr 25 - Catalina State Park Star Party, Catalina State Park, Tucson, Arizona
Apr 25 - Starwalk, Copper's Break State Park, Quanah, Texas
Apr 25-26 - USA Science & Engineering Festival, Washington DC
Apr 26 - Moon Occults Asteroid 4 Vesta
Apr 26 - Asteroid 6487 Tonyspear Closest Approach To Earth (0.973 AU)
Apr 26 - Apollo Asteroid 101955 Bennu Closest Approach To Earth (1.539 AU)
Apr 26 - Binary Jupiter Trojan 617 Patroclus At Opposition (4.694 AU)
Apr 26-29 - Geoint Symposium 2020, Tampa, Florida
Apr 27 - Comet P/2003 T12 (SOHO) Closest Approach To Earth (1.580 AU)
Apr 27 - Comet 124P/Mrkos Perihelion (1.648 AU)
Apr 27 - Asteroid 16425 Chuckyeager Closest Approach To Earth (1.201 AU)
Apr 27 - Amor Asteroid 3757 Anagolay Closest Approach To Earth (1.653 AU)
Apr 27 - Amor Asteroid 7480 Norwan Closest Approach To Earth (2.040 AU)
Apr 27 - Asteroid 17627 Humptydumpty Closest Approach To Earth (2.386 AU)
Apr 27 - Lecture: Searching for Magnetic Fields on Exoplanets, Ithaca, New York
Apr 27-28 - Small Satellites Conference, London, United Kingdom
Apr 27-28 - 20th BritGrav Meeting, Dublin, Ireland
Apr 27-28 - SpaceTech for Business Summit, Munich, Germany
Apr 27-30 - Conference: Progress on Old and New Themes in Cosmology (PONT), Avignon, France
Apr 27-30 - International Workshop on Nuclear Statistical Physics in Astrophysics and Nuclear Applications (NuSPANA), Santa Fe, New Mexico
Apr 27-May 01 - 3rd DarkMachines Workshop: Advanced Workshop on Accelerating the Search for Dark Matter with Machine Learning, Geneva, Switzerland
Apr 28 - Comet 354P/LINEAR Perihelion (2.002 AU)
Apr 28 - Comet 171P/Spahr At Opposition (2.868 AU)
Apr 28 - Asteroid 10389 Robmanning Closest Approach To Earth (1.598 AU)
Apr 28 - Asteroid 11714 Mikebrown Closest Approach To Earth (1.666 AU)
Apr 28 - Asteroid 18728 Grammier Closest Approach To Earth (1.703 AU)
Apr 28 - Asteroid 3154 Grant Closest Approach To Earth (2.613 AU)
Apr 28 - Asteroid 3297 Hong Kong Closest Approach To Earth (2.668 AU)
Apr 28 - Space Tourism Conference, Los Angeles, California
Apr 28-30 - 2020 In Situ Science and Instrumentation Workshop for the Exploration of Europa and Ocean Worlds, Pasadena, California
Apr 28-30 - Lunar Surface Science Workshop, Denver, Colorado
Apr 28-30 - Conference: Panchromatic Transients in the 2020s, Warrenton, Virginia
Apr 29 - GPS 3A-03 Falcon 9 Launch
Apr 29 - Amor Asteroid 52768 (1998 OR2) Near-Earth Flyby (0.042 AU)
Apr 29 - Apollo Asteroid 85585 Mjolnir Closest Approach To Earth (1.002 AU)
Apr 29 - Asteroid 207563 Toscana Closest Approach To Earth (1.840 AU)
Apr 29 - Apollo Asteroid 11311 Peleus Closest Approach To Earth (2.145 AU)
Apr 29 - Asteroid 2483 Guinevere Closest Approach To Earth (3.760 AU)
Apr 29 - Asteroid 37452 Spirit Closest Approach To Earth (3.816 AU)
Apr 29 - Lecture: The Most Dangerous Experiments in Physics!, Wolverhampton, United Kingdom
Apr 29-30 - Conference: Military Space Situational Awareness, London, United Kingdom
Apr 30 - Comet P/2016 G1 (PANSTARRS) Closest Approach To Earth (1.583 AU)
Apr 30 - Comet 322P/SOHO At Opposition (2.444 AU)
Apr 30 - Hyperbolic Object A/2019 K6 At Opposition (2.927 AU)
Apr 30 - Comet P/2019 A1 (PANSTARRS) At Opposition (3.662 AU)
Apr 30 - Asteroid 91287 Simon-Garfunkel Closest Approach To Earth (1.086 AU)
Apr 30 - Asteroid 118945 Rikhill Closest Approach To Earth (2.048 AU)
Apr 30 - Asteroid 294727 Dennisritchie Closest Approach To Earth (2.153 AU)
Apr 30 - Asteroid 7604 Kridsadaporn Closest Approach To Earth (3.877 AU)
Apr 30 - Kuiper Belt Object 2014 FC69 At Opposition (84.243 AU)

May 2020

May ?? - Dragon 2 USCV 1 Falcon 9 Launch (International Space Station)
May ?? - HTV-9 H-2B Launch (International Space Station)
May ?? - Next Generation Capsule CZ-5B Launch (Unmanned, Chinese Space Station)
May ?? - X-37B OTV-6 (AFSPC-7) Atlas 5 Launch
May ?? - Taihu-1 Long March Launch
May ?? - RISAT-2A PSLV Launch
May ?? - MiniCarb (CNGB)/ PAN A & B LauncherOne Launch
May 01 - Space Day
May 01 - Hyperbolic Object A/2019 K6 Closest Approach To Earth (2.927 AU)
May 01 - Comet 181P/Shoemaker-Levy At Opposition (4.053 AU)
May 01 - Comet C/2019 F1 (ATLAS-Africano) At Opposition (4.128 AU)
May 01 - Comet 170P/Christensen At Opposition (4.132 AU)
May 01 - Asteroid 2004 Lexell Closest Approach To Earth (1.324 AU)
May 01 - Asteroid 7328 Casanova Closest Approach To Earth (1.794 AU)
May 01 - Asteroid 19034 Santorini Closest Approach To Earth (3.910 AU)
May 01 - 15th Anniversary (2005), Cassini Spacecraft's Discovery of Saturn Moon Daphnis
May 01 - Kazuro Watanabe's 65th Birthday (1955)
May 01 - 90th Anniversary (1930), Pluto is Officially Named
May 01 - Scott Carpenter's 95th Birthday (1925)
May 01 - 160th Anniversary (1860), New Concord Meteorite Shower (Hit Horse in Ohio)
May 01 - Johann Jakob Balmer's 195th Birthday (1825)
May 02 - Astronomy Day
May 02 - Comet P/2003 F2 (NEAT) Closest Approach To Earth (2.244 AU)
May 02 - Asteroid 37683 Gustaveeiffel Closest Approach To Earth (0.871 AU)
May 02 - Asteroid 432971 Loving Closest Approach To Earth (1.560 AU)
May 02 - Asteroid 7554 Johnspencer Closest Approach To Earth (1.610 AU)
May 02 - Asteroid 3430 Bradfield Closest Approach To Earth (1.788 AU)
May 02 - Jupiter Trojan 3317 Paris At Opposition (3.993 AU)
May 02 - Kuiper Belt Object 42355 Typhon At Opposition (21.815 AU)
May 02 -[Feb 18] Galaxy Forum Korea 2020, Daejeon, Korea
May 02 - 130th Anniversary (1890), Forest City Meteorite Shower (Hit Haystack)
May 02 - 240th Anniversary (1780), William Herschel's Discovery of the First Binary Star (Xi Ursae Majoris)
May 03 - Comet C/2019 Y1 (ATLAS) Closest Approach To Earth (1.117 AU)
May 03 - Comet C/2019 B3 (PANSTARRS) Closest Approach To Earth (6.520 AU)
May 03 - Asteroid 469 Argentina Closest Approach To Earth (1.797 AU)
May 03 - Asteroid 12485 Jenniferharris Closest Approach To Earth (1.857 AU)
May 03 - Asteroid 6984 Lewiscarroll Closest Approach To Earth (3.384 AU)
May 03 - Jupiter Trojan 2241 Alcathous At Opposition (3.871 AU)
May 03-08 - European Geoscience Union (EGU) General Assembly 2020, Vienna, Austria
May 03-08 - Planet Mars V Workshop, Les Houches, France
May 03-09 - 14th Spontaneous Workshop: Hot topics in Modern Cosmology, Cargese, France
May 04 - Star Wars Day
May 04 - Comet C/2017 T2 (PANSTARRS) Perihelion (1.615 AU)
May 04 - Comet 288P At Opposition (2.454 AU)
May 04 - Asteroid 13752 Grantstokes Closest Approach To Earth (1.443 AU)
May 04 - Apollo Asteroid 4257 Ubasti Closest Approach To Earth (1.618 AU)
May 04 - Asteroid 12490 Leiden Closest Approach To Earth (1.813 AU)
May 04 - Asteroid 11094 Cuba Closest Approach To Earth (1.821 AU)
May 04 - Asteroid 11911 Angel Closest Approach To Earth (2.683 AU)
May 04 - Lecture: Update on OSIRIS-REx Mission at Bennu Asteroid, Ithaca, New York
May 04 - 15th Anniversary (2005), Richard Feynman Stamp Released
May 04 - 240th Anniversary (1780), Formation of the American Academy of Arts and Sciences
May 04-05 - 2nd European Physics Conference, Chicago, Illinois
May 04-06 - Symposium: Stars and Planets in the Ultraviolet, Tempe, Arizona
May 04-06 - 2020 Cubesat Developers Workshop, San Luis Obispo, California
May 04-08 - FRIB First Experiments: Proposal Preparation Workshop, East Lansing, Michigan
May 04-08 - Joint ICTP-IAEA Workshop on the Use of Cosmic Ray Neutron Sensor for Soil Moisture Management and Validation of Remote Sensing Soil Moisture Maps, Trieste, Italy
May 04-08 - International Virtual Observatory Alliance (IVOA) Interoperability Meeting, Sydney, Australia
May 04-15 - 10th ICTP Workshop on the Theory and Use of Regional Climate Models, Trieste, Italy
May 04-29 - Workshop: The Accelerating Universe - The Physics and Astrophysics of Dark Energy and Gravitation, Munich, Germany
May 05 - National Astronaut Day
May 05 - Eta Aquarids Meteor Shower Peak
May 05 - Comet C/2019 C1 (ATLAS) Perihelion (6.581 AU)
May 05 - Asteroid 3356 Resnik Closest Approach To Earth (1.001 AU)
May 05 - Asteroid 4147 Lennon Closest Approach To Earth (1.172 AU)
May 05 - Asteroid 7507 Israel Closest Approach To Earth (1.275 AU)
May 05 - Asteroid 32096 Puckett Closest Approach To Earth (1.522 AU)
May 05 - Asteroid 6111 Davemckay Closest Approach To Earth (1.936 AU)
May 05 - Asteroid 8622 Mayimbialik Closest Approach To Earth (2.335 AU)
May 05-07 - 3rd Congress of Space Engineering, Madrid, Spain
May 06 - Comet 28P/Neujmin At Opposition (2.608 AU)
May 06 - Comet 238P/Read At Opposition (2.786 AU)
May 06 - Asteroid 9781 Jubjubbird Closest Approach To Earth (1.354 AU)
May 06 - Asteroid 12410 Donald Duck Closest Approach To Earth (1.473 AU)
May 06 - Asteroid 4037 Ikeya Closest Approach To Earth (2.079 AU)
May 06 - Asteroi 780 Armenia Closest Approach To Earth (2.377 AU)
May 06 - Asteroid 469366 Watkins Closest Approach To Earth (3.024 AU)
May 06 - Lecture: Earth's Electric Field, Washington DC
May 06 - Lecture: Engineering the Scorpion, London, United Kingdom
May 06 - Jana Ticha's 55th Birthday (1965)
May 06-08 - Women in Space 2020 Conference, Quebec, Canada
May 07 - Supermoon
May 07 - Comet P/2003 T12 (SOHO) Perihelion (0.596 AU)
May 07 - Comet P/2019 Y3 (Catalina) Closest Approach To Earth (1.366 AU)
May 07 - Comet 127P/Holt-Olmstead At Opposition (3.408 AU)
May 07 - Apollo Asteroid 2016 HP6 Near-Earth Flyby (0.011 AU)
May 07 - Apollo Asteroid 438908 (2009 XO) Near-Earth Flyby (0.023 AU)
May 07 - Asteroid 4356 Marathon Closest Approach To Earth (1.376 AU)
May 07 - Asteroid 3594 Scotti Closest Approach To Earth (1.560 AU)
May 07 - Centaur Object 471143 Dziewanna At Opposition (34.761 AU)
May 07 - Lecture: Becoming a NASA Engineer, Pasadena, California
May 07 - Lecture: To c or not to c - Physics in Science Fiction Writing, Worcester, United Kingdom
May 07 - Colloquia: The Fractured Moon - Understanding the Evolution of Porosity and History of Impacts on the Moon, Ithaca, New York
May 07-08 - 9th Annual Lunarcubes Workshop, San Luis Obispo, California
May 07-09 -[Feb 20] 6th International Conference on Geographical Information Systems Theory, Applications and Management (GISTAM 2020), Prague, Czech Republic
May 08 - Comet 210P/Christensen Closest Approach To Earth (1.081 AU)
May 08 - Comet C/2002 R5 (SOHO) At Opposition (1.731 AU)
May 08 - Comet C/2018 X2 (Fitzsimmons) At Opposition (3.018 AU)
May 08 - Comet P/2015 X1 (PANSTARRS) At Opposition (3.770 AU)
May 08 - Asteroid 160105 Gobi Closest Approach To Earth (1.478 AU)
May 08 - Amor Asteroid 7336 Saunders Closest Approach To Earth (1.815 AU)
May 08 - Asteroid 16529 Dangoldin Closest Approach To Earth (1.970 AU)
May 08 - Asteroid 1288 Santa Closest Approach To Earth (1.997 AU)
May 08 - Asteroid 2228 Soyuz-Apollo Closest Approach To Earth (2.663 AU)
May 08 - Lecture: Becoming a NASA Engineer, Pasadena, California
May 08 - Lecture: Trying to Prove Einstein Wrong, Pasadena, California
May 08-09 - 5th European Space Generation Workshop, Madrid, Spain
May 09 - Comet 87P/Bus Perihelion (2.100 AU)
May 09 - Comet 288P Closest Approach To Earth (2.450 AU)
May 09 - Comet 193P/LINEAR-NEAT At Opposition (2.628 AU)
May 09 - Asteroid 230975 Rogerfederer Closest Approach To Earth (1.709 AU)
May 09 - Amor Asteroid 9950 ESA Closest Approach To Earth (2.055 AU)
May 10 - Comet 88P/Howell Closest Approach To Earth (1.080 AU)
May 10 - Apollo Asteroid 388945 (2008 TZ3) Near-Earth Flyby (0.019 AU)
May 10 - Asteroid 3355 Onizuka Closest Approach To Earth (1.303 AU)
May 10 - Asteroid 3769 Arthurmiller Closest Approach To Earth (1.437 AU)
May 10 - Amor Asteroid 1036 Ganymed Closest Approach To Earth (1.954 AU)
May 10 -[Feb 20] Binary Plutino 341520 Mors-Somnus At Opposition (29.904 AU)
May 10 - Kuiper Belt Object 2010 FX86 At Opposition (45.046 AU)
May 10 - George E Smith's 90th Birthday (1930)
May 10 - Cecilia Payne-Gaposchkin's 120th Birthday (1900)
May 10-15 - 6th International Conference on Alluvial Fans, Las Cruces, New Mexico
May 10-15 - International Science and Engineering Fair, Anaheim, California
May 10-16 - Course: Space Optics Instrument Design & Technology, Poltu Quatu, Italy
May 11 - Comet P/2019 A4 (PANSTARRS) Closest Approach To Earth (1.778 AU)
May 11 - Comet 238P/Read Closest Approach To Earth (2.782 AU)
May 11 - Comet 61P/Shajn-Schaldach At Opposition (4.245 AU)
May 11 - Asteroid 363 Padua Occults HIP 40023 (5.5 Magnitude Star)
May 11 - Atira Asteroid 2006 WE4 Closest Approach To Earth (0.489 AU)
May 11 - Asteroid 727 Nipponia Closest Approach To Earth (1.880 AU)
May 11 - Centaur Object 144908 (2004 YH32) At Opposition (10.596 AU)
May 11 - Harriet Quimby's 145th Birthday (1875)
May 11-12 - Interplanetary Small Satellite Conference: Beyond LEO, Pasadena, California
May 11-13 - 13th Workshop of the Pathfinder HI Survey Coordination Committee (PHISCC), Cagliari, Italy
May 11-13 - 1st PAN Neutrino Theory Symposium: Particle, Astro, and Nuclear Physics Topics in Neutrino Theory, Arlington, Virginia
May 11-14 - Conference: Uncovering the Physics of Formation of Globular Clusters and their Host Galaxies, Santa Barbara, California
May 11-14 - European Navigation Conference 2020 (ENC 2020), Dresden, Germany
May 11-14 - 6th International Conference on the Nature and Ontology of Spacetime, Albena, Bulgaria
May 11-14 - 1st IAA African Symposium on Small Satellites, Stellenbosch, South Africa
May 11-14 - ABoVE 6th Science Team Meeting, Fairbanks, Alaska
May 11-15 - Caffè Lattes Conference: Cosmological Analyses Featuring Galactic Foreground Emission, Lattes, France
May 11-15 - ESO-ESA Joint 2020 Science Workshop: New Science In The Multi-Messenger Era, Garching, Germany
May 11-15 - Workshop: Random Geometry and Quantum Gravity - Latest Developments in 2D, Paris, France
May 11-15 - CAFFELattes Conference: Cosmological Analyses Featuring Galactic Foreground Emission, Montpellier, France
May 11-15 -[Feb 22] Workshop: LIFE - Large Interferometer for Exoplanets (LIFE), Leiden, The Netherlands
May 11-15 -[Feb 23] Workshop: Growth of Small Scales in Corona and Solar Wind, Leiden, The Netherlands
May 11-15 - Thinkshop on Protoplanetary Disk Chemodynamics, Potsdam, Germany
May 11-15 - Workshop: Applied Newton-Cartan Geometry, Stockholm, Sweden
May 11-16 - 10th ICTP Workshop on the Theory and Use of Regional Climate Models, Trieste, Italy
May 11-16 - Workshop: Numerical Wildfire 2020, Cargese, France
May 11-22 - Summer School on Cosmology 2020, Trieste, Italy
May 11-Jun 05 -[Feb 19] CTS Summer School & Workshop on GW Astrophysics, Bangalore, India
May 12 - Comet P/2003 F2 (NEAT) At Opposition (2.259 AU)
May 12 - Asteroid 3151 Talbot Occults HIP 78849 (6.3 Magnitude Star)
May 12 - Apollo Asteroid 2000 KA Near-Earth Flyby (0.023 AU)
May 12 - Asteroid 25958 Battams Closest Approach To Earth (1.222 AU)
May 12 - Jupiter Trojan 1172 Aneas At Opposition (3.957 AU)
May 12 - Kuiper Belt Object 53311 Deucalion At Opposition (41.654 AU)
May 12 - 90th Anniversary (1930), 1st Planetarium Opens in the United States (Adler Planetarium)
May 12 - Jean-Felix Adolphe Gambart's 220th Birthday (1800)
May 12-13 - Space Forun 2020, Luxembourg
May 12-14 - 2020 Humans to Mars Summit, Washington DC
May 12-14 - 2020 European Lunar Symposium, Italy
May 12-15 - 6th International Planetary Dunes Workshop, Alamosa, Colorado
May 12-15 - Transient High-Energy Sky and Early Universe Surveyor (THESEUS) Conference, Malaga, Spain
May 13 - Comet P/2003 T12 (SOHO) At Opposition (1.613 AU)
May 13 - Comet P/2019 A4 (PANSTARRS) At Opposition (1.778 AU)
May 13 - Comet 46P/Wirtanen At Opposition (3.249 AU)
May 13 - Asteroid 46824 Tambora Closest Approach To Earth (1.194 AU)
May 13 - Asteroid 12773 Lyman Closest Approach To Earth (1.925 AU)
May 13 - Amor Asteroid 4401 Aditi Closest Approach To Earth (2.643 AU)
May 13 - Kuiper Belt Object 90568 (2004 GV9) At Opposition (38.662 AU)
May 13 - Clark Chapman's 75th Birthday (1945)
May 13-15 - Workshop: Sensing Forest Water Dynamics from Space - Towards Predicting the Earth System Response to Droughts - Part II, Pasadena, California
May 13-16 - 2nd HUBS Workshop: Hot Gas in the Universe, Xiamen, China
May 13-17 - ILA Berlin Air Show 2020, Berlin, Germany
May 13-20 - 17th NRAO Synthesis Imaging Workshop, Socorro, New Mexico
May 14 - Comet P/2019 GG21 (PANSTARRS) Closest Approach To Earth (3.496 AU)
May 14 - Asteroid 224 Oceana Closest Approach To Earth (1.558 AU)
May 14 - Asteroid 3975 Verdi Closest Approach To Earth (2.007 AU)
May 14 - Asteroid 4701 Milani Closest Approach To Earth (2.047 AU)
May 14 - Centaur Object 65489 Ceto At Opposition (39.478 AU)
May 14 - Lecture: Leadership, Climate Change and Courage, Liverpool, United Kingdom
May 14 - 10th Anniversary (2010), STS-132 Launch (Space Shuttle Atlantis, ISS)
May 14-15 - Research to Operations (R2O) Workshop: Using ABoVE Data in Fire and Resource Management, Fairbanks, Alaska
May 15 - Comet C/2018 W1 (Catalina) At Opposition (3.505 AU)
May 15 - Apollo Asteroid 478784 (2012 UV136) Near-Earth Flyby (0.022 AU)
May 15 - Mars Trojan 5261 Eureka Closest Approach To Earth (0.565 AU)
May 15 - Asteroid 19398 Creedence Closest Approach To Earth (1.694 AU)
May 15 - Asteroid 10957 Alps Closest Approach To Earth (2.288 AU)
May 15 - Asteroid 30826 Coulomb Closest Approach To Earth (2.589 AU)
May 15 - Kuiper Belt Object 65407 (2002 RP120) At Opposition (32.040 AU)
May 15 - East Coast High Energy Theory Student Meeting 2020, Philadelphia, Pennsylvania
May 15 - 15th Anniversary (2005), Hal Weaver, et al's Discovery of Pluto Moon Nix & Hydra
May 15 - Mike Malin's 70th Birthday (1950)
May 15-16 - The American Rocketry Challenge, The Plains, Virginia
May 16 - Comet 284P/McNaught At Opposition (2.680 AU)
May 16 - Asteroid 17681 Tweedledum Closest Approach To Earth (0.879 AU)
May 16 - Asteroid 19535 Rowanatkinson Closest Approach To Earth (1.525 AU)
May 16 - Event: The American Rocketry Challenge, The Plains, Virginia
May 16 - Nancy Roman's 95th Birthday (1925)
May 16 - John Skjellerup's 145th Birthday (1875)
May 16 - Honore Flaugergues' 265th Birthday (1755)
May 17 - Comet 231P/LINEAR-NEAT Closest Approach To Earth (2.436 AU)
May 17 - Atira Asteroid 434326 (2004 JG6) Closest Approach To Earth (1.042 AU)
May 17 - Asteroid 10183 Ampere Closest Approach To Earth (1.102 AU)
May 17 - Asteroid 4511 Rembrandt Closest Approach To Earth (1.166 AU)
May 17 - Asteroid 1159 Granada Closest Approach To Earth (1.344 AU)
May 17 - Asteroid 5277 Brisbane Closest Approach To Earth (1.392 AU)
May 17 - Jupiter Trojan 1867 Deiphobus At Opposition (4.043 AU)
May 17 - 390th Anniversary (1630), Niccolo Zucchi's & Daniello Bartoli's Discovery of Jupiter's Belts
May 17-20 - Galactic and Extragalactic High Velocity Clouds Workshop, Athens, Georgia
May 17-21 - 14th Baska GNSS Conference, Baska, Krk Island, Croatia
May 18 - Comet 220P/McNaught At Opposition (1.401 AU)
May 18 - Comet 375P/Hill At Opposition (3.649 AU)
May 18 - Atira Asteroid 2012 VE46 Closest Approach To Earth (0.530 AU)
May 18 - Asteroid 4970 Druyan Closest Approach To Earth (1.738 AU)
May 18 - Asteroid 7644 Cslewis Closest Approach To Earth (1.746 AU)
May 18 - Kuiper Belt Object 2015 BP519 At Opposition (52.011 AU)
May 18 - 25th Anniversary (1995), Japan Space Flyer Unit Launch (Carried Newts)
May 18-19 - Military PNT Conference, London, United Kingdom
May 18-20 - Space Tech Expo USA 2020, Long Beach, California
May 18-20 - Conference: Distorted Astrophysical Discs - New Insights and Future Directions, Cambridge, United Kingdom
May 18-20 -[Feb 23] 4th Annual Fulbright-Cottrell Junior Faculty Professional Development Workshop, Cologne, Germany
May 18-22 - IAU Symposium 361: Massive Stars Near & Far, Ballyconnell, Cavan, Ireland
May 18-22 - 16th International Conference on Space Operations (SPACEOPS 2020), Cape Town, South Africa
May 18-22 - 14th International Conference on Interconnections Between Particle Physics and Cosmology (PPC 2020), Norman, Oklahoma
May 18-22 - Robotic Mining Competition (RMC), Kennedy Space Center, Florida
May 18-Jun 12 - Workshop: Particle Growth in Turbulence, Stockholm, Sweden
May 19 - Comet C/2019 F2 (ATLAS) Closest Approach To Earth (2.578 AU)
May 19 - Comet 247P/LINEAR At Opposition (3.457 AU)
May 19 - Asteroid 2577 Litva (2 Moons) Closest Approach To Earth (1.192 AU)
May 19 - Asteroid 39566 Carllewis Closest Approach To Earth (1.389 AU)
May 19 - Asteroid 134346 Pinatubo Closest Approach To Earth (1.399 AU)
May 19 - Amor Asteroid 162011 Konnohmaru Closest Approach To Earth (3.474 AU)
May 19 - Neptune Trojan 2010 TS191 At Opposition (29.657 AU)
May 19 - Kuiper Belt Object 2015 KH162 At Opposition (59.261 AU)
May 19 - 20th Anniversary (2000), STS-101 Launch (Space Shuttle Atlantis, SRTM)
May 19 - 110th Anniversary (1910), Earth Passes Through Halley's Comet's Tail
May 19 - Francesco de Vico's 215th Birthday (1805)
May 19-30 - ISAPP Summer School on Gravitational Waves, Florence, Italy
May 20 -[Feb 21] SpX-DM2 (Demo 2) Falcon 9 Launch (International Space Station)
May 20 - Comet P/2002 S7 (SOHO) Closest Approach To Earth (1.567 AU)
May 20 - Hyperbolic Object A/2019 K6 Perihelion (3.929 AU)
May 20 - Asteroid 2985 Shakespeare Closest Approach To Earth (1.795 AU)
May 20 - Asteroid 4922 Leshin Closest Approach To Earth (1.955 AU)
May 20 - Asteroid 3728 IRAS Closest Approach To Earth (2.225 AU)
May 20 - 10th Anniversary (2010), Akatsuki Launch (Japan Venus Orbiter)
May 20 - 20th Anniversary (2000), Galileo, Ganymede 28 Flyby
May 20 - Alexei Tupolev's 95th Birthday (1925)
May 20 - George Bond's 195th Birthday (1825)
May 20-21 - GEO Business 2020 Event, London, United Kingdom
May 20-21 - Conference: Defence Space 2020, London, United Kingdom
May 20-22 - 1st Mondragone Frontiers of Astronomy Series: Latest Advances in X-ray Spectroscopy and Polarimetry, Rome, Italy
May 21 - Comet C/2019 L2 (NEOWISE) At Opposition (3.895 AU)
May 21 - Comet P/2010 TO20 (LINEAR-Grauer) At Opposition (4.691 AU)
May 21 - Apollo Asteroid 136795 (1997 BQ) Near-Earth Flyby (0.041 AU)
May 21 - Asteroid 35350 Lespaul Closest Approach To Earth (1.888 AU)
May 21 - Lecture: Satellite Imagery and Humanitarian Crises, Salisbury, United Kingdom
May 21-22 - Workshop: Observatory for the Outer Heliosphere, Heliosheath, and Interstellar Space, Boulder, Colorado
May 22 - Mercury Passes 0.9 Degrees From Venus
May 22 - Comet 193P/LINEAR-NEAT Closest Approach To Earth (2.604 AU)
May 22 - Asteroid 4536 Drewpinsky Closest Approach To Earth (1.066 AU)
May 22 - Asteroid 1002 Olbersia Closest Approach To Earth (1.835 AU)
May 22 - Asteroid 9661 Hohmann Closest Approach To Earth (3.058 AU)
May 22 - Royal Astronomical Society (RAS) Ordinary Meeting, London, United Kingdom
May 22 - Meeting: Exoplanet Modelling in the James Webb Era, London, United Kingdom
May 22 - Meeting: MHD Oscillations and Waves from the Photosphere to the Corona, London, United Kingdom
May 23 - Comet C/2019 Y4 (ATLAS) Closest Approach To Earth (0.781 AU)
May 23 - Comet 231P/LINEAR-NEAT At Opposition (2.442 AU)
May 23 - Comet P/2019 GG21 (PANSTARRS) At Opposition (3.508 AU)
May 23 - Comet P/2005 JD108 (Catalina-NEAT) At Opposition (3.989 AU)
May 23 - Comet P/2010 TO20 (LINEAR-Grauer) Closest Approach To Earth (4.691 AU)
May 23 - Asteroid 50 Virginia Closest Approach To Earth (2.084 AU)
May 23 - Starwalk, Copper's Break State Park, Quanah, Texas
May 23 - 70th Anniversary (1950), Madhipura Meteorite Fall (Hit Shed in India)
May 23 - Jim Chamberlin's 105th Birthday (1915)
May 24 - Moon Occults Asteroid 4 Vesta
May 24 - Comet 196P/Tichy At Opposition (3.979 AU)
May 24 - Asteroid 9617 Grahamchapman Closest Approach To Earth (1.449 AU)
May 24 - Asteroid 19620 Auckland Closest Approach To Earth (2.000 AU)
May 24 - Asteroid 18235 Lynden-Bell Closest Approach To Earth (2.309 AU)
May 24 - Asteroid 1282 Utopia Closest Approach To Earth (2.536 AU)
May 24 - 60th Anniversary (1960), Midas 2 Launch (1st Experimental Infrared Surveillance Satellite
May 24-28 - JpGU - AGU Joint Meeting 2020: For a Borderless World of Geoscience, Chiba, Japan
May 24-29 - International Conference on Technology and Instrumentation in Particle Physics (TIPP 2020), Whistler, Canada
May 24-Jun 14 - Workshop: Nu Intersections - Neutrino Physics at a Crossroad, Aspen, Colorado
May 24-Jun 24 - Workshop: Transport and Mixing of Tracers in Geophysics and Astrophysics, Aspen, Colorado
May 25 - Towel Day - Annual Tribute to Douglas Adams
May 25 - Comet 58P/Jackson-Neujmin Perihelion (1.378 AU)
May 25 - Comet P/2007 S1 (Zhao) At Opposition (3.635 AU)
May 25 - Asteroid 12284 Pohl Closest Approach To Earth (1.627 AU)
May 25 - Asteroid 10378 Ingmarbergman Closest Approach To Earth (1.883 AU)
May 25 -[Feb 25] Asteroid 451 Patientia Closest Approach To Earth (2.286 AU)
May 25 - 75th Anniversary (1945), Arthur C Clarke Proposes Communication Satellites in Geosynchronous Orbit
May 25 - 95th Anniversary (1925), R. Watson's Discovery of Nova Pictoris 1925
May 25 - Pieter Zeeman's 155th Birthday (1865)
May 25 - Daniel Barringer's 160th Birthday (1860)
May 25-26 - Global Colloquium on Astrophysics and Particle Physics, Rome, Italy
May 25-27 - 27th Saint Petersburg International Conference on Integrated Navigation Systems, St. Petersburg, Russia
May 25-27 - Improving Space Operations Workshop, Santa Clara, California
May 25-28 - Canadian Astronomical Society Annual Meeting (CASCA 2020), York, Canada
May 25-29 - 54th ESLAB Symposium: The X-ray Universe 2020, Noordwijk, The Netherlands
May 25-29 - 9th International Conference on the Physics of Dusty Plasmas (ICPDP 2020), Moscow, Russia
May 25-29 - 4S Symposium: Small Satellites Systems and Services, Vilamoura, Portugal
May 25-29 - 6th Conference on Quantum Information in Quantum Gravity, Geneva, Switzerland
May 25-29 - Alvio@80: Conference in Honor of Alvio Renzini, Island of Crete, Greece
May 25-29 - Workshop: Neutron Stars as Multi-Messenger Laboratories for Dense Matter, Trento, Italy
May 25-31 - 2nd International School on Amplitudes and Cosmology, Holography and Positive Geometries, Lecce, Italy
May 26 - Comet 239P/LINEAR At Opposition (3.383 AU)
May 26 - Comet 45P/Honda-Mrkos-Pajdusakova At Opposition (4.238 AU)
May 26 - Asteroid 342843 Davidbowie Closest Approach To Earth (1.841 AU)
May 26 - Space Sector Forum 2020, Warsaw, Poland
May 26-27 - 9th Interplanetary CubeSat Workshop (iCubeSat 2020), Beijing, China
May 26-28 - 20th ASTRO 2020 Conference, Toronto, Canada
May 26-29 - 2020 Midwest Magnetic Fields Meeting, Madison, Wisconsin
May 26-30 - LXX International Conference on Nuclear Physics and Elementary Particle Physics, and Nuclear Physics Technologies (NUCLEUS 2020), St. Petersburg, Russia
May 26-Jun 01 - 2020 Thirty Meter Telescope (TMT) Early-Career Workshop, Victoria, Canada
May 27 - Comet 49P/Arend-Rigaux At Opposition (3.890 AU)
May 27 - Apollo Asteroid 66391 Moshup Closest Approach To Earth (0.160 AU)
May 27 - Asteroid 7016 Conandoyle Closest Approach To Earth (1.361 AU)
May 27 - Asteroid 8080 Intel Closest Approach To Earth (2.200 AU)
May 27 - Asteroid 6318 Cronkite Closest Approach To Earth (2.571 AU)
May 27 - Jupiter Trojan 3451 Mentor At Opposition (4.042 AU)
May 27 - 80th Anniversary (1940), Edwin McMillan & Philip Abelson Publish Their Discovery of Neptunium
May 27 - Sam Treiman's 95th Birthday (1925)
May 27-28 - 3rd Long-term Ozone Trends and Uncertainties in the Stratosphere (LOTUS) Workshop, Helsinki, Finland
May 27-29 - 10th Iberian Gravitational Waves Meeting, Valencia, Spain
May 28 - Comet 389P/Siding Spring Closest Approach To Earth (1.366 AU)
May 28 - Comet C/2017 T2 (PANSTARRS) Closest Approach To Earth (1.659 AU)
May 28 - Asteroid 4464 Vulcano Closest Approach To Earth (0.990 AU)
May 28 - Amor Asteroid 3352 McAuliffe Closest Approach To Earth (1.173 AU)
May 28 - Asteroid 17640 Mount Stromlo Closest Approach To Earth (1.980 AU)
May 28 - Asteroid 2041 Lancelot Closest Approach To Earth (2.731 AU)
May 28 - Frank Drake's 90th Birthday (1930)
May 28 - Rudolph Minkowski's 125th Birthday (1895)
May 28-31 - International Space Development Conference (ISDC 2020), Frisco, Texas
May 29 - Comet 284P/McNaught Closest Approach To Earth (2.657 AU)
May 29 - Asteroid 289586 Shackleton Closest Approach To Earth (1.245 AU)
May 29 - Asteroid 54522 Menaechmus Closest Approach To Earth (1.820 AU)
May 29 - Asteroid 12574 LONEOS Closest Approach To Earth (1.899 AU)
May 29 - Asteroid 39382 Opportunity Closest Approach To Earth (3.745 AU)
May 29 - Jupiter Trojan 4709 Ennomos At Opposition (4.232 AU)
May 29 - Plutino 469987 (2006 HJ123) At Opposition (32.469 AU)
May 30 - Comet P/2008 Y12 (SOHO) Closest Approach To Earth (2.641 AU)
May 30 - Asteroid 239672 SOFIA Closest Approach To Earth (2.083 AU)
May 30 -[Feb 19] Asteroid 775 Lumiere Closest Approach To Earth (2.175 AU)
May 30 - Asteroid 17768 Tigerlily Closest Approach To Earth (2.247 AU)
May 30 - Kuiper Belt Object 2010 JO179 At Opposition (58.248 AU)
May 30 - Griffith Observatory Public Star Party, Los Angeles, California
May 30 - John Herapath's 230th Birthday (1790)
May 30-Jun 01 - Workshop: Summiting The Unknown - New Physics, New Opportunities, New Voices - Dedicated to Ann Nelson, Seattle, Washington
May 30-Jun 04 - 236th Meeting of the American Astronomical Society (AAS), Madison, Wisconsin
May
May 31 - Comet C/2019 Y4 (ATLAS) Perihelion (0.253 AU)
May 31 - Apollo Asteroid 4450 Pan Closest Approach To Earth (0.422 AU)
May 31 - Asteroid 3354 McNair Closest Approach To Earth (1.144 AU)
May 31 - Asteroid 3895 Earhart Closest Approach To Earth (1.443 AU)
May 31 - Asteroid 10111 Frensel Closest Approach To Earth (1.572 AU)
May 31 - Amor Asteroid 6050 Miwablock Closest Approach To Earth (1.587 AU)
May 31 - Asteroid 3673 Levy Closest Approach To Earth (1.763 AU)
May 31 - Plutino 38628 Huya At Opposition (27.747 AU)
May 31 - 90th Anniversary (1930), Comet 73P/Schwassmann-Wachmann Near-Earth Flyby (24 Lunar Distance)
May 31-Jun 04 - 236th Meeting of the American Astronomical Society (AAS), Madison, Wisconsin

June 2020

Jun ?? - Aditya-L1 PSLV-XL Launch (Solar Orbiter)
Jun ?? - Orion 10/ NROL-44 Delta 4 Heavy Launch
Jun ?? -[Feb 25] Starlink 7 (60)/ SkySat 19-21 Falcon 9 Launch
Jun ?? - Amazonia-1/Whitney PSLV Launch
Jun ?? - GSAT-20 GSLV Mk III Launch
Jun ?? - Sequoia (Capella 2) PSLV Launch
Jun ?? - Carbonite 4 Firefly Alpha Launch
Jun ?? - SEOSat/Ingenio/ Taranis Vega Launch
Jun ?? -[Feb 25] SmallSat Rideshare Mission 1 Falcon 9 Launch
Jun ?? - William Crabtree's 410th Birthday (1610)
Jun 01 - Comet 36P/Whipple Perihelion (3.022 AU)
Jun 01 - Comet P/2005 JD108 (Catalina-NEAT) Closest Approach To Earth (3.976 AU)
Jun 01 - Asteroid 5725 Nordlingen Closest Approach To Earth (1.751 AU)
Jun 01 - Asteroid 17058 Rocknroll Closest Approach To Earth (1.758 AU)
Jun 01 - Asteroid 514107 Kaʻepaokaʻawel Closest Approach To Earth (5.778 A
Jun 01 - AIxSpace Event: Artificial Intelligence Applied to Space, Montreal, Canada
Jun 01 - 30th Anniversary (1990), ROSAT Launch
Jun 01 - Gennadi Manakov's 70th Birthday (1950)
Jun 01 - Kip Thorne's 80th Birthday (1940)
Jun 01 - John Gore's 175th Birthday (1845)
Jun 01-02 -[Feb 24] 23rd Meeting of the Small Bodies Assessment Group (SBAG), Laurel, Maryland
Jun 01-04 - 2nd Workshop on Phenomenology of Strong Gravity (PSG2), Nur-Sultan, Kazakhstan
Jun 01-04 - Workshop: Stellar Modelling for Nuclear Astrophysics, Baton Rouge, Louisiana
Jun 01-05 - EU Green Week 2020, Brussels, Belgium
Jun 01-05 - Conference: Towards Other Earth III (TOE III) - From Solar System to Exoplanets, Lamego, Portugal
Jun 01-05 - Michigan Cosmology Summer School 2020, Ann Arbor, Michigan
Jun 01-05 - 16th Summer Schools in Statistics for Astronomers, State College, Pennsylvania
Jun 01-11 - Michelson-Morley School on Particle Physics and Cosmology, Cleveland, Ohio
Jun 01-12 - Workshop on Fundamental Aspects of String Theory, Sao Paulo, Brazil
Jun 01-26 - Workshop: Planet Formation - From Dust Coagulation to Final Orbit Assembly, Munich, Germany
Jun 02 - Asteroid 19383 Rolling Stones Closest Approach To Earth (1.232 AU)
Jun 02 - Asteroid 37582 Faraday Closest Approach To Earth (1.301 AU)
Jun 02 - Plutino 470308 (2007 JH43) At Opposition (39.544 AU)
Jun 02 - 65th Anniversary (1955), Founding of the Baikonur Cosmodrome
Jun 02 - Pete Conrad's 90th Birthday (1930)
Jun 02-04 - Mercury 2020 Conference: Current and Future Science of the Innermost Planet, Orleans, France
Jun 02-04 - NuSTAR 2020 Conference: The High-Energy Universe in Focus, Sardinia, Italy
Jun 02-04 - 3rd IAA/AAS SciTech Forum, Moscow, Russia
Jun 02-05 -[Feb 22] Workshop: Complexity from Quantum Information to Black Holes, Leiden, The Netherlands
Jun 02-05 - 10th International Meeting on Lorentzian Geometry (GeLoCor), Cordoba, Spain
Jun 03 - Comet 175P/Hergenrother Closest Approach To Earth (1.701 AU)
Jun 03 - Comet 324P/La Sagra At Opposition (1.926 AU)
Jun 03 - Comet P/2019 B2 (Groeller) Closest Approach To Earth (2.355 AU)
Jun 03 - Comet 123P/West-Hartley Closest Approach To Earth (2.847 AU)
Jun 03 - Asteroid 73079 Davidbaltimore Closest Approach To Earth (1.050 AU)
Jun 03 - Asteroid 4547 Massachusetts Closest Approach To Earth (1.812 AU)
Jun 03 - Amor Asteroid 2202 Pele Closest Approach To Earth (1.952 AU)
Jun 03 - Asteroid 4321 Zero Closest Approach To Earth (2.492 AU)
Jun 03 - Asteroid 31 Euphrosyne Closest Approach To Earth (2.879 AU)
Jun 03 - Neptune Trojan 2010 TT191 At Opposition (33.206 AU)
Jun 03 - 10th Anniversary (2010), Anthony Wesley's Discovery of Jupiter Impact Event
Jun 03 - 55th Anniversary (1965), Gemini 4 Launch, USA's First Spacewalk (Ed White)
Jun 04 - Mercury At Its Greatest Eastern Elongation (24 Degrees)
Jun 04 - Comet 84P/Giclas Perihelion (1.719 AU)
Jun 04 - Asteroid 14965 Bonk Closest Approach To Earth (0.955 AU)
Jun 04 - Asteroid 1065 Amundsenia Closest Approach To Earth (1.084 AU)
Jun 04 - Asteroid 8992 Magnanimity Closest Approach To Earth (1.173 AU)
Jun 04 - Asteroid 5029 Ireland Closest Approach To Earth (2.022 AU)
Jun 04 - Asteroid 275281 Amywalsh Closest Approach To Earth (2.073 AU)
Jun 04 - Asteroid 5649 Donnashirley Closest Approach To Earth (2.114 AU)
Jun 04 - Asteroid 1655 Comas Sola Closest Approach To Earth (2.426 AU)
Jun 04 - Asteroid 11739 Baton Rouge Closest Approach To Earth (3.505 AU)
Jun 04 - 20th Anniversary (2000), Burnup of the Compton Gamma Ray Observatory
Jun 04 - 130th Anniversary (1890), Kakangari Meteorite Fall in India
Jun 04-08 - 21st International Symposium on Very High Energy Cosmic Ray Interaction (ISVHECRI 2020), Ooty, India
Jun 05 - Penumbral Lunar Eclipse
Jun 05 - Comet 28P/Neujmin Closest Approach To Earth (2.490 AU)
Jun 05 - Atira Asteroid 418265 (2008 EA32) Closest Approach To Earth (0.592 AU)
Jun 05 - Asteroid 12542 Laver Closest Approach To Earth (1.983 AU)
Jun 05 - Asteroid 12759 Joule Closest Approach To Earth (2.246 AU)
Jun 05 - Lecture: The Loneliest Galaxies in the Universe, Pasadena, California
Jun 05 - Mike Brown's 55th Birthday (1965)
Jun 05-06 - Congress on Earth and Environmental Sciences, Zurich, Switzerland
Jun 05-15 - Brno Summer School: GAIA & TESS - Tools for Understanding the Local Universe, Brno, Czech Republic
Jun 06 - Comet 389P/Siding Spring At Opposition (1.397 AU)
Jun 06 - Aten Asteroid 163348 (2002 NN4) Near-Earth Flyby (0.034 AU)
Jun 06 - Asteroid 1762 Russell Closest Approach To Earth (2.026 AU)
Jun 06 - Godefroy Wendelin's 440th Birthday (1580)
Jun 06-07 - 40th Sino-Russian Technical Forum, London, United Kingdom
Jun 07 - Parker Solar Probe, 5th Perihelion
Jun 07 - Apollo Asteroid 471926 Jormungandr Closest Approach To Earth (0.450 AU)
Jun 07 - Asteroid 1850 Kohoutek Closest Approach To Earth (0.953 AU)
Jun 07 - Asteroid 9725 Wainscoat Closest Approach To Earth (1.039 AU)
Jun 07 - Asteroid 12790 Cernan Closest Approach To Earth (1.191 AU)
Jun 07 - Asteroid 10101 Fourier Closest Approach To Earth (1.453 AU)
Jun 07 - Asteroid 2653 Principia Closest Approach To Earth (1.479 AU)
Jun 07 - Kuiper Belt Object 278361 (2007 JJ43) At Opposition (39.857 AU)
Jun 07-11 - 19th International Symposium on Geodynamics and Earth Tides (G-ET Symposium 2020), Wuhan, China
Jun 07-13 - QUARKS-2020 - 21st Seminar on High Energy Physics (QUARKS 2020), Pereslavl-Zalessky, Russia
Jun 08 - World Oceans Day
Jun 08 - Comet 249P/LINEAR Closest Approach To Earth (0.429 AU)
Jun 08 - Hyperbolic Object A/2019 Q2 At Opposition (3.269 AU)
Jun 08 - Asteroid 4444 Escher Closest Approach To Earth (1.094 AU)
Jun 08 - Amor Asteroid 3199 Nefertiti Closest Approach To Earth (1.965 AU)
Jun 08 - 45th Anniversary (1975), Venera 9 Launch (Soviet Venus Orbiter/Lander)
Jun 08 - 55th Anniversary (1965), Luna 6 Launch (Soviet Moon Flyby)
Jun 08 - Tim Berners-Lee's 65th Birthday (1955)
Jun 08 - Friedel Sellschop's 90th Birthday (1930)
Jun 08 - Giovanni Cassini's 395th Birthday (1625)
Jun 08-10 - Young Astronomers on Galactic Nuclei Meeting (YAGN20), Copenhagen, Denmark
Jun 08-10 - 8th International HEPPA-SOLARIS Meeting, Bergen, Norway
Jun 08-11 - 7th Mars Atmosphere Modelling and Observations Workshop, Paris, France
Jun 08-11 - Conference: Astronomy with Radioactive Isotopes, Budapest, Hungary
Jun 08-12 -[Feb 18] 17th International Planetary Probe Workshop (IPPW 2020), Monterey, California
Jun 08-12 - IAU Symposium 362: The Predictive Power of Computational Astrophysics as a Discovery Tool, Chamonix, France
Jun 08-12 - Conference: LSST@EUROPE 4 - Shaping the European Contribution to LSST, Rome, Italy
Jun 08-12 - 2nd Eddy Cross Disciplinary Symposium: Sun, Earth, Planet, Space, Atmosphere and Ocean, Vail, Colorado
Jun 08-12 - Workshop: Random Geometry and Quantum Gravity - New Developments in Dimensions 3 and Higher, Paris, France
Jun 08-12 - 16th European Conference on Spacecraft Structures, Materials and Environmental Testing (ESSMET), Braunschweig, Germany
Jun 08-12 - 12th Cosmic Ray International Seminar (CRIS 2020), Salerno, Italy
Jun 08-12 - Workshop: Impact and Risk Relevant Climate Information from Global Scale Projections to Local Scale Climate Hazards, Trieste, Italy
Jun 08-12 - Summer School in Astroinformatics, State College, Pennsylvania
Jun 09 - Comet 324P/La SagraClosest Approach To Earth (1.922 AU)
Jun 09 - Comet 132P/Helin-Roman-Alu At Opposition (3.226 AU)
Jun 09 - Apollo Asteroid 2013 XA22 Near-Earth Flyby (0.027 AU)
Jun 09 - Apollo Asteroid 2013 EC20 Near-Earth Flyby (0.067 AU)
Jun 09 - Asteroid 35977 Lexington Closest Approach To Earth (1.934 AU)
Jun 09-10 - Conference: Military Space USA, Los Angeles, California
Jun 09-11 - 11th Joint Planetary and Terrestrial Mining Sciences Symposium and Space Resources Roundtable, Ottawa, Canada
Jun 09-11 - Global Space Exploration Conference (GLEX), St. Petersburg, Russia
Jun 09-12 - Workshop: Recent Developments in Quantum Field Theory, Milan, Italy
Jun 10 - Asteroid 449 Hamburga Closest Approach To Earth (1.769 AU)
Jun 10 - Asteroid 40227 Tahiti Closest Approach To Earth (2.487 AU)
Jun 10 - Kuiper Belt Object 2010 KZ39 At Opposition (44.939 AU)
Jun 10 - Lecture: The Hubble Space Telescope - Unveiling an Incredible Universe, Washington DC
Jun 10 - James Short's 320th Birthday (1710)
Jun 10 - Abu al-Wafa Buzjani's 1080th Birthday (940 AD)
Jun 10-12 - 6th Workshop on Compact Steep Spectrum and GHz-Peaked Spectrum Radio Sources, Torun, Poland
Jun 11 - Comet 224P/LINEAR-NEAT At Opposition (3.571 AU)
Jun 11 - Kuiper Belt Object 50000 Quaoar Occults UCAC4 374-115453 (12.7 Magnitude Star)
Jun 11 - Apollo Asteroid 4769 Castalia Closest Approach To Earth (1.471 AU)
Jun 11 - Asteroid 484 Pittsburghia Closest Approach To Earth (1.596 AU)
Jun 11 - Asteroid 6223 Dahl Closest Approach To Earth (1.822 AU)
Jun 11 - 35th Anniversary (1985), Vega 1, USSR Venus Landing/Balloon
Jun 11 - Duncan Steel's 65th Birthday (1955)
Jun 11-13 - AGU-SEG Airborne Geophysics Workshop, Davie, Florida
Jun 11-14 - CanSat 2020 Student Competition, Blacksburg, Virginia
Jun 12 - Mars Passes 1.7 Degrees From Neptune
Jun 12 - Comet 220P/McNaught Closest Approach To Earth (1.330 AU)
Jun 12 - Asteroid 1677 Tycho Brahe Closest Approach To Earth (1.351 AU)
Jun 12 - Asteroid 916 America Closest Approach To Earth (1.532 AU)
Jun 13 - Comet P/2008 QP20 (LINEAR-Hill) At Opposition (3.146 AU)
Jun 13 - Hyperbolic Object A/2019 O4 Closest Approach To Earth (3.492 AU)
Jun 13 - Atira Asteroid 2010 XB11 Closest Approach To Earth (0.706 AU)
Jun 13 - Asteroid 8353 Megryan Closest Approach To Earth (1.746 AU)
Jun 13 - Asteroid 5819 Lauretta Closest Approach To Earth (1.918 AU)
Jun 13 - Kuiper Belt Object 174567 Varda At Opposition (45.503 AU)
Jun 13 - 10th Anniversary (2010), Hayabusa (MUSES-C) Return To Earth
Jun 13 - Lyudmila Chernykh's 85th Birthday (1935)
Jun 13 - James Westphal's 90th Birthday (1930)
Jun 13-19 - Summer School: Matrix Membranes and Emergent Spacetime, Dublin, Ireland
Jun 14 - Comet 60P/Tsuchinshan At Opposition (3.179 AU)
Jun 14 - Comet 316P/LONEOS-Christensen At Opposition (4.029 AU)
Jun 14 - Dwarf Planet Ceres Occults UCAC4-364-186030 (12.5 Magnitude Star)
Jun 14 - Apollo Asteroid 2017 MF7 Near-Earth Flyby (0.009 AU)
Jun 14 - 35th Anniversary (1985), Vega 2, USSR Venus Landing/Balloon
Jun 14 - 45th Anniversary (1975), Venera 10, Venus Landing
Jun 14 - 250th Anniversary (1770), Charles Messier's Discovery of Lexell's Comet (D/1770 L1)
Jun 14-19 - Asteroids, Comets, Meteors Conference, Flagstaff, Arizona
Jun 14-19 - SPIE Conference: Astronomical Telescopes and Instrumentation, Yokohama, Japan
Jun 14-19 - 4th International Conference on Advances in Radioactive Isotope Science, Avignon, France
Jun 14-20 - 14th International Conference on Symmetries and Integrability of Difference Equations (SIDE-14), Kyiv, Ukraine
Jun 14-Jul 05 - Workshop: Black Hole Formation, Accretion, and Outflows Through Cosmic Time, Aspen, Colorado
Jun 15 - Asteroid 31664 Randiiwessen Closest Approach To Earth (1.445 AU)
Jun 15 - Asteroid 3654 AAS Closest Approach To Earth (1.447 AU)
Jun 15 - Asteroid 1712 Angola Closest Approach To Earth (1.693 AU)
Jun 15 - Asteroid 35165 Quebec Closest Approach To Earth (2.163 AU)
Jun 15 - 60th Anniversary (1960), Launch of Dogs Otvazhnaya and Malek & Rabbit Zvezdochka into Space
Jun 15-16 - 49th World Congress on Microbiology, London, United Kingdom
Jun 15-19 - 2020 AIAA Aviation and Aeronautics Forum and Exposition, Reno, Nevada
Jun 15-19 - Conference: Extragalactic Jets on All Scales - Launching, Propagation, Termination, Heidelberg, Germany
Jun 15-19 - Conference: Assessing Uncertainties in Hubble's Constant Across the Universe, Garching, Germany
Jun 15-19 - AGN Workshop 2020: Active Galaxies and Quasar Reference Systems in the Gaia Era, Paris, France
Jun 15-19 - International Astrophysics and Space Conference 2020, Tbilisi, Georgia
Jun 15-19 - 3rd International Conference From the Planck Scale to the Weak Scale (Planck 2020), Durham, United Kingdom
Jun 15-19 - Symposium: The Life Cycle of Cosmic Polycyclic Aromatic Hydrocarbons (PAHS), Aarhus, Denmark
Jun 15-19 - Teleparallel Gravity Workshop 2020, Tartu, Estonia
Jun 15-19 - International School of Space Science: Dynamical Systems and Machine Learning Approaches to Sun-Earth Relations, L'Aquila, Italy
Jun 15-19 - Workshop: Fundamental Aspects of String Theory, Sao Paulo, Brazil
Jun 15-26 - Conference: New Pathways in Explorations of Quantum Field Theory and Quantum Gravity Beyond Supersymmetry - II, Trieste, Italy
Jun 15-26 - 1st Pollica Summer Workshop on Dark Matter, Pollica, France
Jun 15-26 - Workhhop: Entangle This V - Gravity, Quantum Information and Condensed Matter, Benasque, Spain
Jun 15-27 - Cargese Summer School: Old and New Frontiers in Quantum Field Theory, Cargese, France
Jun 16 - Comet 378P/McNaught At Opposition (2.463 AU)
Jun 16 - Comet 123P/West-Hartley At Opposition (2.872 AU)
Jun 16 - Comet C/2019 K7 (Smith) Perihelion (4.475 AU)
Jun 16 - Aten Asteroid 2014 OL339 Closest Approach To Earth (0.299 AU)
Jun 16 - Apollo Asteroid 5731 Zeus Closest Approach To Earth (1.716 AU)
Jun 16 - Asteroid 17078 Sellers Closest Approach To Earth (1.985 AU)
Jun 16 - Asteroid 7359 Messier Closest Approach To Earth (2.430 AU)
Jun 16 - Asteroid 6824 Mallory Closest Approach To Earth (2.504 AU)
Jun 16 - Neptune Trojan 2013 KY18 At Opposition (28.771 AU)
Jun 16-18 - 2020 Annual Meeting of Planetary Geologic Mappers, Lakewood, Colorado
Jun 16-19 - Symposium: Relativistic Astrophysics, Theory and Observational Perspectives (RAPTOP 2020), Warsaw, Poland
Jun 16-20 - Spaceport America Cup, New Mexico
Jun 17 - Comet 141P-D/Machholz At Opposition (1.567 AU)
Jun 17 - Comet P/2019 B2 (Groeller) At Opposition (2.379 AU)
Jun 17 - Asteroid 5945 Roachapproach Closest Approach To Earth (1.018 AU)
Jun 17 - Asteroid 2451 Dollfus Closest Approach To Earth (1.367 AU)
Jun 17 - Asteroid 5450 Sokrates Closest Approach To Earth (2.125 AU)
Jun 17 - Asteroid 16155 Buddy Closest Approach To Earth (2.125 AU)
Jun 17 - 5th Anniversary (2015), TRMM Re-Enters Earth's Atmosphere
Jun 17 - 20th Anniversary (2000), Discovery of the Dhofar 378 Meteorite (Mars Meteorite)
Jun 17 - 35th Anniversary (1985), STS-51-G Launch (Space Shuttle Discovery)
Jun 17 - William Parsons' 220th Birthday (1800)
Jun 17-19 - 4th International Conference on the History of Physics, Dublin, Ireland
Jun 17-26 - 63rd Session of the Committee on the Peaceful Uses of Outer Space, Vienna, Austria
Jun 17-30 - 2020 European School of High-Energy Physics (ESHEP2020), Maale Hachamisha, Israel
Jun 18 - Hyperbolic Object A/2019 U6 Perihelion (0.914 AU)
Jun 18 - Comet P/2017 S8 (PANSTARRS) At Opposition (3.018 AU)
Jun 18 - Asteroid 6775 Giorgini Closest Approach To Earth (1.245 AU)
Jun 18 - Amor Asteroid 154991 Vinciguerra Closest Approach To Earth (1.870 AU)
Jun 18 - Asteroid 2848 ASP Closest Approach To Earth (2.490 AU)
Jun 18 - Lecture: Making a Mars Rover, Pasadena, California
Jun 18 - France Space Generation (SG) Advisory Council Event: Our Giant Leap, Toulouse, France
Jun 19 - Moon Occults Venus
Jun 19 - Comet P/2007 Q2 (Gilmore) At Opposition (1.464 AU)
Jun 19 - Comet 175P/Hergenrother At Opposition (1.736 AU)
Jun 19 - Comet P/2012 SB6 (Lemmon) Perihelion (2.277 AU)
Jun 19 - Asteroid 344 Desiderata Occults UCAC4 578-47209 (6.5 Magnitude Star)
Jun 19 - Aten Asteroid 2018 PD22 Near-Earth Flyby (0.044 AU)
Jun 19 - Apollo Asteroid 2101 Adonis Closest Approach To Earth (0.368 AU)
Jun 19 - Apollo Asteroid 2102 Tantalus Closest Approach To Earth (0.483 AU)
Jun 19 - Asteroid 9523 Torino Closest Approach To Earth (1.489 AU)
Jun 19 - Lecture: Making a Mars Rover, Pasadena, California
Jun 19-20 - Kouchibouguac Spring Star Fest, Kouchibouguac National Park, Canada
Jun 20 - Summer Solstice, 21:44 UT
Jun 20 - Comet 141P-A/Machholz At Opposition (1.411 AU)
Jun 20 - Comet 141P/Machholz At Opposition (1.413 AU)
Jun 20 - Comet C/2019 F2 (ATLAS) At Opposition (2.695 AU)
Jun 20 - Comet 258P/PANSTARRS Perihelion (3.482 AU)
Jun 20 - Comet 250P/Larson At Opposition (3.799 AU)
Jun 20 - Asteroid 8720 Takamizawa Closest Approach To Earth (1.687 AU)
Jun 20 - Asteroid 21811 Burroughs Closest Approach To Earth (2.501 AU)
Jun 20 - Plutino 28978 Ixion At Opposition (37.965 AU)
Jun 20 - Starwalk, Copper's Break State Park, Quanah, Texas
Jun 20 - 30th Anniversary (1990), David Levy's & Henry Holt's Discovery of the 1st Mars Trojan Asteroid: 5261 Eureka
Jun 20 - 350th Anniversary (1670), Discovery Of Nova 1670 Vulpecula
Jun 20-22 - Workshop: Matrix Membranes and Emergent Spacetime, Dublin, Ireland
Jun 21 - Annular Solar Eclipse
Jun 21 - Asteroid 4589 McDowell Closest Approach To Earth (1.325 AU)
Jun 21 - Asteroid 85267 Taj Mahal Closest Approach To Earth (1.708 AU)
Jun 21 - Asteroid 9446 Cicero Closest Approach To Earth (1.723 AU)
Jun 21 - Asteroid 246247 Sheldoncooper Closest Approach To Earth (1.861 AU)
Jun 21 - Asteroid 99905 Jeffgrossman Closest Approach To Earth (2.726 AU)
Jun 21-25 - Gemini Science Meeting: 20th Anniversary and Beyond, Seoul, Korea
Jun 21-26 - Cambridge Workshop on Cool Stars, Stellar Systems and the Sun (COOL STARS 21), Toulouse, France
Jun 21-26 - 11th International ESA Conference on Guidance, Navigation & Control (GNC) Systems, Sopot, Poland
Jun 21-27 - International Conference on Neutrino Physics (Neutrino 2020), Chicago, Illinois
Jun 21-30 - ISAPP School: Gamma Rays to Shed Light on Dark Matter, Madrid, Spain
Jun 22 - Comet P/2002 S7 (SOHO) At Opposition (1.739 AU)
Jun 22 - Comet 378P/McNaught Closest Approach To Earth (2.458 AU)
Jun 22 - Asteroid 2 Pallas Occults UCAC4 561-089839 (11.5 Magnitude Star)
Jun 22 - Asteroid 904 Rockefellia Closest Approach To Earth (2.287 AU)
Jun 22 - Royal Greenwich Observatory's 345th Birthday (1675)
Jun 22-24 - Planetary Science Informatics and Data Analytics 2020 Conference, Madrid, Spain
Jun 22-24 - Workshop: Preparing for SOFIA-HIRMES Science: The Missing Link Between JWST and Herschel, Baltimore, Maryland
Jun 22-25 - National Space & Missile Materials Symposium (NSMMS) & Commercial and Government Response Access to Space Technology Exchange (CRASTE), Rockville, Maryland
Jun 22-25 - 11th Conference on the Inspiration of Astronomical Phenomena: Cosmic Explorations - At the Intersection of Science, Space, Art, and Culture, Pasadena, California
Jun 22-26 - IAU Symposium 363: Neutron Star Astrophysics at the Crossroads - Magnetars and the Multimessenger Revolution, L'Aquilla, Italy
Jun 22-26 - Workshop: Venus - Evolution Through Time, Bern, Switzerland
Jun 22-26 - InternationaI Conference on Spectral Line Shapes (ICSLS), Caserta, Italy
Jun 22-26 - Workshop: Key Reactions in Nuclear Astrophysics, Trento, Italy
Jun 22-26 - 11th International Workshop on Advances in the Science and Applications of SAR Interferometry and Sentinel-1 InSAR (FRINGE 2020), Delft, The Netherlands
Jun 22-26 - Conference: Dark Matter 2020 - From the Smallest to the Largest Scales, Santander, Spain
Jun 22-26 -[Feb 24] 36th IAP Colloquium: The Circum gaLactic mEdium around gAlaxies: when baRyons iNvESt haloS (CLEARNESS 2020), Paris, France
Jun 22-26 - Conference: Strings, Fields and Holograms, Ascona, Switzerland
Jun 22-26 - 2020 R-matrix Workshop on Methods and Applications, Athens, Ohio
Jun 22-26 - International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois
Jun 22-26 - Geomorphometry 2020 Conference, Perugia, Italy
Jun 22-26 - Exoclimes Simulation Platform (ESP) Summer School II, Bern, Switzerland
Jun 22-27 - Mathematica Summer School on Theoretical Physics (MSSTP 2020), Bangalore, India
Jun 22-28 - 2020 Joint FAR/ANSEF-ICTP Summer School on Theoretical Physics: Quantum Information Theory and Gravitational Waves at the Forefront, Yerevan, Armenia
Jun 23 - Comet 142P/Ge-Wang At Opposition (2.437 AU)
Jun 23 - Asteroid 1554 Yugoslavia Closest Approach To Earth (1.456 AU)
Jun 23 - Asteroid 9340 Williamholden Closest Approach To Earth (1.731 AU)
Jun 23 - Jaume Nomen's 60th Birthday (1960)
Jun 23 - Donn Eisele's 90th Birthday (1930)
Jun 23 - 115th Anniversary (1905), 1st Flight of Wright Brother's 3rd Plane (Flyer III)
Jun 23-24 - Conference: Data Space 2020, Glasgow, United Kingdom
Jun 23-24 - Conference: Made for Space 2020, Coventry, United Kingdom
Jun 23-25 - Workshop: Multiphase Gas in Galaxy Groups, Charlottesville, Virginia
Jun 23-25 - International Conference on Science and Instrumentation of Ground-based Large Coronagraphs, LiJiang, China
Jun 23-26 - Conference: Time Domain Astronomy in the High Redshift Universe, Washington DC
Jun 24 - Comet P/2019 Y3 (Catalina) At Opposition (1.552 AU)
Jun 24 - Comet 25D/Neujmin Closest Approach To Earth (2.122 AU)
Jun 24 - Comet P/2008 Y12 (SOHO) At Opposition (2.737 AU)
Jun 24 - Comet 106P/Schuster At Opposition (2.827 AU)
Jun 24 - Aten Asteroid 441987 (2010 NY65) Near-Earth Flyby (0.025 AU)
Jun 24 - Asteroid 3917 Franz Schubert Closest Approach To Earth (1.391 AU)
Jun 24 - Asteroid 14061 Nagincox Closest Approach To Earth (1.612 AU)
Jun 24 - Asteroid 3693 Barringer Closest Approach To Earth (2.125 AU)
Jun 24 - Asteroid 184784 Bettiepage Closest Approach To Earth (2.176 AU)
Jun 24 - Centaur Object 5145 Pholus At Opposition (27.688 AU)
Jun 24 - Fred Hoyle's 105th Birthday (1915)
Jun 24 - Edwin Coddington's 150th Birthday (1870)
Jun 24-25 - SpaceAM Conference: The New Business Frontier - Advanced Materials in Space, Nottingham, United Kingdom
Jun 24-26 - Enzo-E Workshop, Maynooth, Ireland
Jun 25 - Comet 58P/Jackson-Neujmin Closest Approach To Earth (1.998 AU)
Jun 25 - Comet 4P/Faye At Opposition (2.866 AU)
Jun 25 - Comet 67P/Churyumov-Gerasimenko At Opposition (3.240 AU)
Jun 25 - Comet 230P/LINEAR At Opposition (3.476 AU)
Jun 25 - Apollo Asteroid 2017 FW128 Near-Earth Flyby (0.008 AU)
Jun 25 - Asteroid 90022 Apache Point Closest Approach To Earth (1.576 AU)
Jun 25 - Asteroid 342431 Hilo Closest Approach To Earth (1.626 AU)
Jun 25 - Asteroid 2866 Hardy Closest Approach To Earth (1.645 AU)
Jun 25 - Asteroid 101723 Finger Closest Approach To Earth (1.699 AU)
Jun 25 - Asteroid 7755 Haute-Provence Closest Approach To Earth (1.882 AU)
Jun 25 - Asteroid 2198 Ceplecha Closest Approach To Earth (1.886 AU)
Jun 25 - Asteroid 3905 Doppler Closest Approach To Earth (2.198 AU)
Jun 25 - Kuiper Belt Object 50000 Quaoar At Opposition (41.815 AU)
Jun 25 - Rupert Wildt's 115th Birthday (1905)
Jun 25-30 - International School of Physics: Foundations of Cosmic Ray Astrophysics, Varenna, Lake Como, Italy
Jun 26 - Comet 2P/Encke Perihelion (0.337 AU)
Jun 26 - Comet 264P/Larsen Closest Approach To Earth (2.309 AU)
Jun 26 - Asteroid 4442 Garcia Closest Approach To Earth (1.815 AU)
Jun 26 - David Morrison's 80th Birthday (1940)
Jun 26 - Charles Messier's 290th Birthday (1730)
Jun 27 - Comet P/2014 U4 (PANSTARRS) At Opposition (1.615 AU)
Jun 27 - Comet 17P/Holmes At Opposition (1.750 AU)
Jun 27 - Comet 19P/Borrelly At Opposition (3.653 AU)
Jun 27 - Asteroid 2575 Bulgaria Closest Approach To Earth (0.976 AU)
Jun 27 - Asteroid 46977 Krakow Closest Approach To Earth (2.382 AU)
Jun 27 - Griffith Observatory Public Star Party, Los Angeles, California
Jun 27 - 10th Anniversary (2010), EPOXI, 3rd Earth Flyby
Jun 27 - 25th Anniversary (1995), STS-71 Launch (Space Shuttle Atlantis, 1st Mir Docking)
Jun 28 - Comet P/2004 R3 (LINEAR-NEAT) At Opposition (3.057 AU)
Jun 28 - Asteroid 19204 Joshuatree Closest Approach To Earth (0.762 AU)
Jun 28 - Apollo Asteroid 7092 Cadmus Closest Approach To Earth (1.089 AU)
Jun 28 - Asteroid 281 Lucretia Closest Approach To Earth (1.361 AU)
Jun 28 - Asteroid 60186 Las Cruces Closest Approach To Earth (2.759 AU)
Jun 28-Jul 04 - 17th Russian Gravitational Conference on Gravitation, Cosmology and Astrophysics (RUSGRAV-17), St. Petersburg, Russi
Jun 28-Jul 04 - Asia Oceania Geosciences Society (AOGS) 17th Annual Meeting, Hongcheon, South Korea
Jun 28-Jul 11 - Carpathian Summer School of Physics 2020: Exotic Nuclei and Nuclear/Particle Astrophysics, Sinaia, Romania
Jun 29 - Oceansat-3/ GNOMES PSLV Launch
Jun 29 - Comet 249P/LINEAR Perihelion (0.497 AU)
Jun 29 - Hyperbolic Object A/2019 U6 Closest Approach To Earth (0.827 AU)
Jun 29 - Comet 162P/Siding Spring At Opposition (1.362 AU)
Jun 29 - Comet 294P/LINEAR At Opposition (1.565 AU)
Jun 29 - Asteroid 7042 Carver Closest Approach To Earth (1.021 AU)
Jun 29 - Asteroid 495181 Rogerwaters Closest Approach To Earth (1.686 AU)
Jun 29 - Asteroid 76272 De Jong Closest Approach To Earth (2.407 AU)
Jun 29 - Charles Precourt's 65th Birthday (1955)
Jun 29-Jul 02 - Conference: Neutrino 2020 Theory Over Time, Batavia, Illinois
Jun 29-Jul 03 - Conference: The Physics of Star Formation - From Stellar Cores to Galactic Scales, Lyon, France
Jun 29-Jul 03 -[Feb 23] Workshop: Inflationary Imprints in Large-Scale Structure, Leiden, The Netherlands
Jun 29-Jul 03 -[Feb 20] Conference: Strong and Electro-Weak Matter 2020 (SEWM), Paris, France
Jun 29-Jul 03 - Strings 2020 Conference, Cape Town, South Africa
Jun 29-Jul 03 - 11th International Conference on Direct Reactions with Exotic Beams (DREB2020), Santiago de Compostela, Spain
Jun 29-Jul 03 -[Feb 23] European Astronomical Society Annual Meeting 2020, Leiden, The Netherlands
Jun 29-Jul 03 - Goonhilly Earth Station Summer School 2020, Goonhilly, United Kingdom
Jun 29-Jul 03 - 1st INFN School on Underground Physic: Theory and Experiments (SOUP2020), Cagliari, Sardinia, Italy
Jun 30 - Asteroid Day
Jun 30 - Comet 265P/LINEAR At Opposition (1.733 AU)
Jun 30 - Comet C/2019 A9 (PANSTARRS) At Opposition (3.290 AU)
Jun 30 - Comet 183P/Korlevic-Juric Closest Approach To Earth (3.733 AU)
Jun 30 - Comet 158P/Kowal-LINEAR Closest Approach To Earth (3.806 AU)
Jun 30 - Comet 158P/Kowal-LINEAR At Opposition (3.806 AU)
Jun 30 - Comet C/2017 U7 Closest Approach To Earth (5.710 AU)
Jun 30 - Asteroid 1640 Nemo Closest Approach To Earth (0.985 AU)
Jun 30 - 15th Anniversary (2005), Mike Brown, et al's Discovery of Haumea Moon Namaka

July 2020

Jul ?? - Mars Hope Mission (Al-Amal) H-2A Launch (United Arab Emirates)
Jul ?? - Moon Express Lunar Scout (MX-1E-1) Electron Launch
Jul ?? - Arktika-M 1 Soyuz-2.1b/Fregat-M Launch
Jul ?? -[Feb 25] Starlink 8 (60) Falcon 9 Launch
Jul ?? - GLONASS-K2 14L (K2 No2) Soyuz-2.1b/Fregat-M Launch
Jul ?? - Pleiades-Neo 1 & 2 Vega C Launch
Jul ?? - NuSat 9-21 CZ-6 Launch
Jul ?? - Blue Whale 1 Launch (Maiden Launch)
Jul ?? - GISAT 2 PSLV-II Launch
Jul ?? - RISAT 1A PSLV Launch
Jul 01 - Comet P/2008 WZ96 (LINEAR) At Opposition (2.493 AU)
Jul 01 - Comet 104P/Kowal At Opposition (3.475 AU)
Jul 01 - Comet 147P/Kushida-Muramatsu At Opposition (3.838 AU)
Jul 01 - Apollo Asteroid 2019 AC3 Near-Earth Flyby (0.027 AU)
Jul 01 - Asteroid 4116 Elachi Closest Approach To Earth (1.119 AU)
Jul 01 - Atira Asteroid 413563 (2005 TG45) Closest Approach To Earth (1.397 AU)
Jul 01 - Asteroid 1031 Arctica Closest Approach To Earth (2.156 AU)
Jul 01 - 250th Anniversary (1770), Lexell's Comet (D/1770 L1 Lexell) Near-Earth Flyby (5.9 Lunar Distance)
Jul 01 - Franz-Joseph Muller von Reichenstein's 280th Birthday (1740)
Jul 01-03 - Conference: Accretion 2020 @ Fudan, Shanghai, China
Jul 01-04 - 19th Conference on Recent Developments in Gravity (NEB-19), Athens, Greece
Jul 01-04 - 20th International Conference on Computational Science and its Applications, Cagliari, Italy
Jul 02 - Comet 382P/Larson At Opposition (4.170 AU)
Jul 02 - Asteroid 228029 MANIAC Closest Approach To Earth (0.862 AU)
Jul 02 - Asteroid 3672 Stevedberg Closest Approach To Earth (1.345 AU)
Jul 02 - Asteroid 5515 Naderi Closest Approach To Earth (1.370 AU)
Jul 02 - Asteroid 1832 Mrkos Closest Approach To Earth (2.281 AU)
Jul 02 - 30th Anniversary (1990), Giotto, Earth Flyby
Jul 02 - 35th Anniversary (1985), Giotto Launch (ESA's Comet Halley Mission)
Jul 02-10 - International School on AstroParticle Physics: Neutrino Physics, Astrophysics and Cosmology (ISAPP 2020), Valencia, Spain
Jul 03 - Comet 202P/Scotti At Opposition (4.111 AU)
Jul 03 - Comet C/2017 K5 (PANSTARRS) Closest Approach To Earth (6.688 AU)
Jul 03 - Asteroid 242516 Lindseystirling Closest Approach To Earth (1.617 AU)
Jul 03 - Harrison Schmitt's 85th Birthday (1935)
Jul 04 - Earth At Aphelion (1.017 AU From Sun)
Jul 04 - Comet 206P/Barnard-Boattini At Opposition (1.946 AU)
Jul 04 - Comet C/2017 K5 (PANSTARRS) At Opposition (6.688 AU)
Jul 04 - Apollo Ateroid 2007 UN12 Near-Earth Flyiby (0.043 AU)
Jul 04 - Asteroid 3169 Ostro Closest Approach To Earth (0.993 AU)
Jul 04 - Asteroid 9325 Stonehenge Closest Approach To Earth (1.519 AU)
Jul 04 - Asteroid 11998 Fermilab Closest Approach To Earth (1.644 AU)
Jul 04 - Asteroid 204852 Frankfurt Closest Approach To Earth (1.788 AU)
Jul 04 - Asteroid 11814 Schwamb Closest Approach To Earth (1.986 AU)
Jul 04 - Asteroid 8889 Mockturtle Closest Approach To Earth (2.100 AU)
Jul 04 - Asteroid 777 Gutemberga Closest Approach To Earth (2.222 AU)
Jul 04 - Lecture: Invading Mars, Cordell Hull Birthplace State Park, Byrdstown, Tennessee
Jul 04 - 15th Anniversary (2005), Deep Impact, Comet Tempel 1 Impact/Flyby
Jul 04 - 75th Anniversary (1945), Baby Wac Launch
Jul 05 - Penumbral Lunar Eclipse
Jul 05 - Comet 183P/Korlevic-Juric At Opposition (3.736 AU)
Jul 05 - Asteroid 13606 Bean Closest Approach To Earth (1.183 AU)
Jul 05 - Asteroid 43844 Rowling Closest Approach To Earth (1.611 AU)
Jul 05 - Asteroid 4352 Kyoto Closest Approach To Earth (2.100 AU)
Jul 05 - Neptune Trojan 2008 LC18 At Opposition (31.393 AU)
Jul 05 - Kuiper Belt Object 307261 (2002 MS4) At Opposition (45.539 AU)
Jul 05 - William Rankine's 200th Birthday (1820)
Jul 05-09 - EuroScience Open Forum 2020 (ESOF 2020), Trieste, Italy
Jul 05-10 - 2020 IEEE AP-S Symposium on Antennas and Propagation and CNC/USNC-URSI Joint Meeting, Montreal, Canada
Jul 05-10 - Conference: Chemistry and Physics at Low Temperature (CPLT2020), Visegrad, Hungary
Jul 05-18 -[Feb 25] Workshop: New Frontiers in Strong Gravity, Benasque, Spain
Jul 05-25 - 6th Biennial African School of Physics (ASP2020), Marrakesh, Morocco
Jul 06 - Comet 113P/Spitaler At Opposition (3.413 AU)
Jul 06 - Comet C/2017 Y2 (PANSTARRS) At Opposition (3.959 AU)
Jul 06 - Comet C/2017 U7 At Opposition (5.716 AU)
Jul 06-09 - 1st Penn State SETI Symposium, State College, Pennsylvania
Jul 06-09 - 1st Latin American Conference on Astrophysics and Relativity (LACAR), Bogota, Colombia
Jul 06-10 - 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy (Gamma2020), Barcelona, Spain
Jul 06-10 - Conference: Illuminating the Dusty Universe - A Tribute to the Work of Bruce Draine, Florence, Italy
Jul 06-10 - Workshop: Multiphase AGN Feeding & Feedback II - Linking the Micro to Macro Scales in Galaxies, Groups, and Clusters, Sexten, Italy
Jul 06-10 - Workshop: A Comprehensive View of Galaxy Evolution from the Milky Way to I Zwicky 18, Sexten, Italy
Jul 06-10 -[Feb 23] Workshop: Modelling the Galactic Magnetic Field, Leiden, The Netherlands
Jul 06-10 - Conference: From Top to Bottom - The Stellar Initial Mass Function and its Variations, Durham, United Kingdom
Jul 06-10 - IAU Symposium 364: Multi-scale (Time and Mass) Dynamics of Space Objects, Iasi, Romania
Jul 06-10 - 15th European VLBI Network (EVN) Symposium and Users Meeting, Cork, Ireland
Jul 06-10 - 8th IAGA/ICMA/SCOSTEP Workshop on Vertical Coupling in the Atmosphere-Ionosphere System, Sopron, Hungary
Jul 06-10 - 14th Asia-Pacific Regional IAU Meeting (APRIM), Perth, Australia
Jul 06-17 -[Jul 16] 16th Summer School of Modern Astrophysics (SOMA-2020): Exoplanets - Formation and Evolution, Moscow, Russia
Jul 07 - Atira Asteroid 2017 XA1 Closest Approach To Earth (0.328 AU)
Jul 07 - Apollo Asteroid 5011 Ptah Closest Approach To Earth (1.426 AU)
Jul 07 - Amor Asteroid 5751 Zao Closest Approach To Earth (1.655 AU)
Jul 07 - Centaur Object 10370 Hylonome At Opposition (23.649 AU)
Jul 07 - Symposium: New Strong Materials for Space Applications, Manchester, United Kingdom
Jul 07 - Yuji Hyakutake's 70th Birthday (1950)
Jul 07-11 - 19th RHESSI Workshop, Pisa, Italy
Jul 07-19 - 6th Indo-French Astronomy School (IFAS6): Spectroscopy - Treasures in the Voxels, Lyon, France
Jul 08 - Comet C/2019 N1 (ATLAS) Closest Approach To Earth (2.841 AU)
Jul 08 - Comet 342P/SOHO At Opposition (3.976 AU)
Jul 08 - Comet 157P/Tritton At Opposition (4.016 AU)
Jul 08 - Apollo Asteroid 10563 Izhdubar Closest Approach To Earth (0.876 AU)
Jul 08 - Aten Asteroid 2013 ND15 (Venus Trojan) Closest Approach To Earth (0.906 AU)
Jul 08 - Asteroid 264020 Stuttgart Closest Approach To Earth (1.704 AU)
Jul 08 - Asteroid 10204 Turing Closest Approach To Earth (1.986 AU)
Jul 08-10 - Space Port Area Conference for Educators (SPACE), Kennedy Space Center Visitor Complex, Florida
Jul 08-10 -[Feb 21] 7th Regional Platform for Disaster Risk Reduction in the Americas and the Caribbean (RP20), Montego Bay, Jamacica
Jul 09 - Comet 382P/Larson Closest Approach To Earth (4.162 AU)
Jul 09 - Asteroid 1814 Bach Closest Approach To Earth (1.483 AU)
Jul 09 - Asteroid 3767 DiMaggio Closest Approach To Earth (1.563 AU)
Jul 09 - Asteroid 793 Arizona Closest Approach To Earth (1.626 AU)
Jul 09 - Centaur Object 330836 Orius At Opposition (17.634 AU)
Jul 09 - Lecture: A Day in the Life of the Deep Space Network, Pasadena, California
Jul 09 - George Darwin's 175th Birthday (1845)
Jul 09-11 - 2nd World Congress on Geology & Earth Science, Osaka, Japan
Jul 09-12 - Spacefest XI Conference, Tucson, Arizona
Jul 09-17 - 6th Indo-French Astronomy School: Spectroscopy: Treasures in the Voxels, Lyon, France
Jul 10 - Comet 142P/Ge-Wang At Opposition (2.401 AU)
Jul 10 - Comet 119P/Parker-Hartley At Opposition (3.557 AU)
Jul 10 - Comet 255P/Levy At Opposition (3.955 AU)
Jul 10 - Comet 363P/Lemmon At Opposition (4.024 AU)
Jul 10 - Asteroid 1221 Amor Closest Approach To Earth (0.829 AU)
Jul 10 - Asteroid 14220 Alexgibbs Closest Approach To Earth (1.228 AU)
Jul 10 - Asteroid 1008 La Paz Closest Approach To Earth (2.158 AU)
Jul 10 - Kuiper Belt Object 486958 Arrokoth At Opposition (42.160 AU)
Jul 10 - Kuiper Belt Object 2014 PN70 At Opposition (42.833 AU)
Jul 10 - Lecture: A Day in the Life of the Deep Space Network, Pasadena, California
Jul 10 - 10th Anniversary (2010), Rosetta, Asteroid 21 Lutetia Flyby
Jul 10 - 35th Anniversary (1985), Bion 7 Launch (Carried Monkeys Verny & Gordy, Newts)
Jul 10 - Owen Chamberlain's 100th Birthday (1920)
Jul 11 - Parker Solar Probe, 3rd Venus Flyby
Jul 11 - Comet P/1999 J6 (SOHO) At Opposition (2.435 AU)
Jul 11 - Comet C/2017 Y2 (PANSTARRS) Closest Approach To Earth (3.954 AU)
Jul 11 - Asteroid 18458 Caesar Closest Approach To Earth (1.190 AU)
Jul 11 - Amor Asteroid 5653 Camarillo Closest Approach To Earth (1.279 AU)
Jul 11 - Asteroid 327695 Yokoono Closest Approach To Earth 1.507 AU)
Jul 11 - 30th Anniversary (1990), Gamma Observatory Launch (Soviet Union)
Jul 12 - Comet 16P/Brooks At Opposition (1.881 AU)
Jul 12 - Comet 380P/PANSTARRS Closest Approach To Earth (2.717 AU)
Jul 12 - Comet 377P/Scotti Perihelion (5.017 AU)
Jul 12 - Amor Asteroid 6569 Ondaatje Closest Approach To Earth (0.262 AU)
Jul 12 - Asteroid 2023 Asaph Closest Approach To Earth (1.663 AU)
Jul 12 - Asteroid 3524 Schulz Closest Approach To Earth (1.879 AU)
Jul 12 - Apollo Asteroid 4341 Poseidon Closest Approach To Earth (1.996 AU)
Jul 12-17 - Conference: The Early Phase Star Formation - Insights from Dynamics (EPoS 2020), Castle Ringberg, Germany
Jul 12-17 - Solar Heliospheric and INterplanetary Environment (SHINE) 2020 Conference, Hawaii
Jul 12-17 - Alpine Cosmology Workshop 2020 (ACW20), Prettau, Italy
Jul 12-17 - 2020 National Astronomy Meeting (NAM 2020), Bath, United Kingdom
Jul 12-18 - 16th Rencontres du Vietnam: Neutrinos Physics, Quy Nhon, Vietnam
Jul 12-Aug 02 - Workshop: Galactic Archaeology with Fundamental Stellar Parameters - Synthesizing the Power of Accurate Ages with Distances, Chemistry, and Kinematics, Aspen, Colorado
Jul 13 - Comet 25D/Neujmin At Opposition (2.173 AU)
Jul 13 - Comet 264P/Larsen At Opposition (2.341 AU)
Jul 13 - Comet 4P/Faye Closest Approach To Earth (2.822 AU)
Jul 13 - Amor Asteroid 2009 OS5 Near-Earth Flyby (0.045 AU)
Jul 13 - Apollo Asteroid 24761 Ahau Closest Approach To Earth (1.075 AU)
Jul 13 - Aten Asteroid 136818 Selqet Closest Approach To Earth (1.189 AU)
Jul 13 - Aten Asteroid 398188 Agni Closest Approach To Earth (1.641 AU)
Jul 13 - Asteroid 7225 Huntress Closest Approach To Earth (1.796 AU)
Jul 13 - Asteroid 1940 Whipple Closest Approach To Earth (2.220 AU)
Jul 13 - Centaur Object 55576 Amycus At Opposition (20.915 AU)
Jul 13 - 25th Anniversary (1995), STS-70 Launch (Space Shuttle Discovery, TDRS-G Deployment)
Jul 13-15 - Lyman Alpha Emitters Workshop and Lager Meeting, Pasadena, California
Jul 13-16 - Taking the Temperature: Statistical Nuclear Physics for Astrophysics and Applications (T3), Athens, Ohio
Jul 13-17 - Conference: The Rise of Metals and Dust in Galaxies Through Cosmic Time, Marseille, France
Jul 13-17 - 27th European Cosmic Ray Symposium (ECRS 2020), Nijmegen, The Netherlands
Jul 13-17 - Conference: Quantum Gravity 2020, Waterloo, Canada
Jul 13-17 - 26th International Symposium on Particles, Strings and Cosmology (PASCOS 2020), Heidelberg, Germany
Jul 13-17 - Workshop: Hot Topics in Astrophysics, Sexten, Italy
Jul 13-17 - 16th International Conference on the Dark Side of the Universe, Kigali, Rwanda
Jul 13-17 - TASC6/KASC13 Workshop, Leuven, Belgium
Jul 13-17 - Workshop: Probing Nuclear Physics with Neutron Star Mergers, Trento, Italy
Jul 13-17 - Conference; Galaxy Cluster Formation II - Mergers, Protoclusters, and Star Formation in Overdense Environments, Garching, Germany
Jul 13-17 -[Feb 18] Workshop: Strong Gravitational Lensing, Bern, Switzerland
Jul 13-17 - 41st Canadian Symposium on Remote Sensing, Yellowknife, Canada
Jul 13-18 - Workshop: Isotopes as a Probe of the Growth of Galaxies - From the Milky Way to the Early Universe, Sexten, Italy
Jul 14 - Jupiter At Opposition
Jul 14 - Comet 115P/Maury At Opposition (1.079 AU)
Jul 14 - Comet 106P/Schuster Closest Approach To Earth (2.768 AU)
Jul 14 - Asteroid 36800 Katarinawitt Closest Approach To Earth (1.031 AU)
Jul 14 - Kuiper Belt Object 15810 Arawn At Opposition (34.815 AU)
Jul 14 - 5th Anniversary (2015), New Horizons, Pluto Flyby
Jul 14 - 55th Anniversary (1965), Mariner 4, Mars Flyby
Jul 14-16 - John Glenn Memorial Symposium, Cleveland, Ohio
Jul 14-16 - Conference: Compact Objects and Energetic Phenomena in the Multi-Messenger Era, Saint Paul, Minnesota
Jul 14-21 - NASA Heliophysics Summer School: Explosive Space Weather Events and their Impacts, Boulder, Colorado
Jul 14-21 - 20th International Baikal Summer School on Physics of Elementary Particles and Astrophysics (Baikal Summer School 2020), Bolshie Koty, Lake Baikal, Russia
Jul 15 - Comet 376P/LONEOS Closest Approach To Earth (2.506 AU)
Jul 15 - Asteroid 22824 von Neumann Closest Approach To Earth (1.144 AU)
Jul 15 - Asteroid 3313 Mendel Closest Approach To Earth (1.347 AU)
Jul 15 - Asteroid 6135 Billowen Closest Approach To Earth (1.398 AU)
Jul 15 - Asteroid 1913 Sekanina Closest Approach To Earth (1.897 AU)
Jul 15 - Amor Asteroid 52387 Huitzilopochtli Closest Approach To Earth (1.975 AU)
Jul 15 - Asteroid 1489 Attila Closest Approach To Earth (2.325 AU)
Jul 15 - Asteroid 25000 Astrometria Closest Approach To Earth (2.376 AU)
Jul 15 - 45th Anniversary (1975), Apollo Soyuz Test Project (Apollo 18) Launch
Jul 16 - Moon Occults Asteroid 16 Psyche
Jul 16 - Comet 115P/Maury Closest Approach To Earth (1.078 AU)
Jul 16 - Comet P/2014 U4 (PANSTARRS) Closest Approach To Earth (1.570 AU)
Jul 16 - Comet 17P/Holmes Closest Approach To Earth (1.709 AU)
Jul 16 - Comet 201P/LONEOS At Opposition (2.231 AU)
Jul 16 - Comet C/2019 V1 (Borisov) Perihelion (3.097 AU)
Jul 16 - Comet C/2019 K7 (Smith) Closest Approach To Earth (3.649 AU)
Jul 16 - Comet C/2019 LB7 (Kleyna) At Opposition (4.191 AU)
Jul 16 - Asteroid 26715 South Dakota Closest Approach To Earth (1.861 AU)
Jul 16 - Amor Asteroid 5332 Davidaguilar Closest Approach To Earth (2.088 AU)
Jul 16 - Dwarf Planet 134340 Pluto At Opposition (33.064 AU)
Jul 16 - 30th Anniversary (1990), Badr-A Launch (1st Pakistan Satellite)
Jul 16 - 55th Anniversary (1965), 1st Proton Rocket Launch (USSR)
Jul 17 - Mars 2020 Atlas 5 Launch (Mars Rover)
Jul 17 - Comet 85P/Boethin Closest Approach To Earth (1.530 AU)
Jul 17 - Comet 178P/Hug-Bell Perihelion (1.881 AU)
Jul 17 - Comet P/2008 WZ96 (LINEAR) Closest Approach To Earth (2.459 AU)
Jul 17 - Asteroid 5048 Moriarty Closest Approach To Earth (1.506 AU)
Jul 17 - Asteroid 9766 Bradbury Closest Approach To Earth (1.637 AU)
Jul 17 - Asteroid 11836 Eileen Closest Approach To Earth (1.792 AU)
Jul 17 - Asteroid 30439 Moe Closest Approach To Earth (1.680 AU)
Jul 17 - 45th Anniversary (1975), Apollo-Soyuz Handshake
Jul 17 - 170th Anniversary (1850), Harvard Observatory Takes 1st Photograph of a Star (Vega)
Jul 17-18 - Mactaquac Camping and Observing Weekend, Mactaquac Provincial Park, Canada
Jul 17-19 - 2020 Alberta Star-B-Q, Caroline, Canada
Jul 17-20 - 2020 XQCD PhD School, Stavanger, Norway
Jul 18 - Comet P/2007 Q2 (Gilmore) Closest Approach To Earth (1.377 AU)
Jul 18 - Comet C/2019 K7 (Smith) At Opposition (3.650 AU)
Jul 18 - Comet 118P/Shoemaker-Levy At Opposition (3.694 AU)
Jul 18 - Asteroid 21619 Johnhopkins Closest Approach To Earth (1.397 AU)
Jul 18 - Asteroid 23469 Neilpeart Closest Approach To Earth (1.384 AU)
Jul 18 - 20th Anniversary (2000), Discovery of Jupiter Moon Callirrhoe
Jul 18 - 40th Anniversary (1980), Rohini 1 Launch (India's 1st Satellite)
Jul 18 - 55th Anniversary (1965), Zond 3 Launch (USSR Moon Flyby)
Jul 18 - Richard Branson's 70th Birthday (1950)
Jul 18-23 - 30th Annual INCOSE International Symposium: Systems Engineering for Earth's Future - Uniting Technology and Grand Challenges though Systems Engineering, Cape Town, South Africa
Jul 19 - Moon Occults Asteroid 21 Lutetia
Jul 19 - Comet 379P/Spacewatch Closest Approach To Earth (2.164 AU)
Jul 19 - Comet 149P/Mueller At Opposition (3.029 AU)
Jul 19 - Hyperbolic Object A/2019 Q1 Perihelion (4.996 AU)
Jul 19 - Apollo Asteroid 2016 DY30 Near-Earth Flyby (0.023 AU)
Jul 19 - Asteroid 85185 Lederman Closest Approach To Earth (0.550 AU)
Jul 19 - Asteroid 9253 Oberth Closest Approach To Earth (1.057 AU)
Jul 19 - Apollo Asteroid 2063 Bacchus Closest Approach To Earth (1.128 AU)
Jul 19 - Asteroid 325 Heidelberga Closest Approach To Earth (2.420 AU)
Jul 19 - Centaur Object 10199 Chariklo At Opposition (15.445 AU)
Jul 19 - Neptune Trojan 2011 HM102 At Opposition (27.328 AU)
Jul 19-23 - International School on The Interstellar Medium of Galaxies, from the Epoch of Reionization to the Milky Way, Banyuls-sur-Mer, France
Jul 19-24 - 2020 IEEE Geoscience and Remote Sensing Symposium (IGARSS), Waikoloa, Hawaii
Jul 19-24 - Workshop: Singularity Formation in Nonlinear PDEs, Banff, Canada
Jul 19-24 - Laser Interferometer Space Antenna (LISA) 2020 Symposium, Glasgow, United Kingdom
Jul 20 - Saturn At Opposition
Jul 20 - Comet 141P-D/Machholz Closest Approach To Earth (1.436 AU)
Jul 20 - Hyperbolic Object A/2019 O3 At Opposition (8.277 AU)
Jul 20 - Asteroid 6000 United Nations Closest Approach To Earth (1.427 AU)
Jul 20 - Apollo Asteroid 2135 Aristaeus Closest Approach To Earth (1.504 AU)
Jul 20-23 - 9th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology (FLASY 2020), Lisbon, Portugal
Jul 20-24 - Farnborough International Airshow, Farnborough, United Kingomd
Jul 20-24 - 13th International Workshop on the Identification of Dark Matter 2020 (IDM 2020), Vienna, Austria
Jul 20-24 - Conference: Hot Stars - Life with Circumstellar Matter, Almaty, Kazakhstan
Jul 20-24 - 2020 Sagan Exoplanet Summer Workshop: Extreme Precision Radial Velocity , Pasadena, California
Jul 20-24 - Workshop: Zooming into Dark Matter and Proto-galaxies with Gravitational Lensing, Sexten, Italy
Jul 20-24 - International Conference: Physics of Neutron Stars, St. Petersburg, Russia
Jul 20-25 - Conference: Cosmology 2020 in Duino, Trieste, Italy
Jul 20-31 - COSPAR Capacity Building Workshop: Data Analysis for Planetary Science, Antofagasta, Chile
Jul 20-31 - Class: Software Systems for Astronomy (SSFA), Hawaii
Jul 20-Aug 01 - Cargese Summer School: Rethinking Beyond the Standard Model, Cargese, France
Jul 20-Aug 01 - BASIS Foundation Summer School 2020: Modern Methods in Quantum Field Theory, Sochi, Russia
Jul 21 - Comet P/2019 A8 (PANSTARRS) At Opposition (3.089 AU)
Jul 21 - Apollo Asteroid 2002 BF25 Near-Earth Flyby (0.024 AU)
Jul 21 - Apollo Asteroid 1865 Cerberus Closest Approach To Earth (0.408 AU)
Jul 21 - Jean Picard's 400th Birthday (1620)
Jul 22 - Mercury At Its Greatest Western Elongation (20 Degrees)
Jul 22 - Comet 102P/Shoemaker At Opposition (1.580 AU)
Jul 22 - Comet 380P/PANSTARRS At Opposition (2.732 AU)
Jul 22 - Asteroid 24750 Ohm Closest Approach To Earth (1.911 AU)
Jul 22 - Asteroid 3264 Bounty Closest Approach To Earth (2.509 AU)
Jul 22 - Apollo Asteroid 217628 Lugh Closest Approach To Earth (3.222 AU)
Jul 22 - Plutino 2014 JR80 At Opposition (39.856 AU)
Jul 22-24 - 18th International Conference on QCD in Extreme Conditions (XQCD 2020), Trondheim, Norway
Jul 22-24 - 2nd Workshop on Isotope-Based Studies of Water Partitioning and Plant-Soil Interactions, Hannover, Germany
Jul 23 - Progress MS-15 Soyuz-2.1a Launch (International Space Station 76P)
Jul 23 - Mars Global Remote Sensing Orbiter and Small Rover (Huoxing 1 - HX 1) CZ-5 Launch (China)
Jul 23 - Hyperbolic Object A/2019 O3 Closest Approach To Earth (8.276 AU)
Jul 23 - Asteroid 35978 Arlington Closest Approach To Earth (1.072 AU)
Jul 23 - Asteroid 763 Cupido Closest Approach To Earth (1.131 AU)
Jul 23 - Asteroid 1381 Danubia Closest Approach To Earth (1.375 AU)
Jul 23 - Asteroid 1140 Crimea Closest Approach To Earth (1.714 AU)
Jul 23 - Asteroid 9250 Chamberlin Closest Approach To Earth (1.812 AU)
Jul 23 - Asteroid 4999 MPC Closest Approach To Earth (2.124 AU)
Jul 23 - Asteroid 250840 Motorhead Closest Approach To Earth (2.312 AU)
Jul 23 - Asteroid 316201 Malala Closest Approach To Earth (2.592 AU)
Jul 23 - 25th Anniversary (1995), Discovery of Comet Hale-Bopp by Alan Hale and Tom Bopp
Jul 23 - Etienne-Louis Malus' 245th Birthday (1775)
Jul 23-26 - Bluedot Festival 2020, Jodrell Bank, United Kingdom
Jul 24 - Comet 294P/LINEAR At Opposition (1.649 AU)
Jul 24 - Comet 186P/Garradd Closest Approach To Earth (3.580 AU) Closest Approach To Earth (8.277 AU)
Jul 24 - Ateroid 5451 Plato Closest Approach To Earth (1.221 AU)
Jul 24 - Asteroid 8625 Simonhelberg Closest Approach To Earth (1.557 AU)
Jul 24 - Amor Asteroid 5797 Bivoj Closest Approach To Earth (1.685 AU)
Jul 24 - 70th Anniversary (1950), 1st Rocket Launch from Cape Canaveral (Bumper/V-2 Rocket)
Jul 24 - 230th Anniversary (1790), Barbotan Meteorite Fall (Hit Cottage in France)
Jul 24-25 - Mount Carleton Star Party, Mount Carleton Provincial Park, Canada
Jul 24-25 - Butter Pot Star Party 2020, Butter Pot Provincial Park, Canada
Jul 24-Aug 02 - Bad Honnef Physics School: Methods of Effective Field Theory and Lattice Field Theory, Bad Honnef, Germany
Jul 25 - ExoMars 2020 (Rosalind Franklin/Kazachok) Proton-M/Briz-M P4 Launch
Jul 25 - Comet P/2011 U2 (Bressi)At Opposition (4.094 AU)
Jul 25 - Asteroid 11881 Mirstation Closest Approach To Earth (1.274 AU)
Jul 25 - Asteroid 71885 Denning Closest Approach To Earth (1.513 AU)
Jul 25 - Asteroid 6216 San Jose Closest Approach To Earth (1.854 AU)
Jul 25 - Griffith Observatory Public Star Party, Los Angeles, California
Jul 25 - 30th Anniversary (1990), Combined Release and Radiation Effects Satellite (CRRES) Launch
Jul 25 - Christoph Scheiner's 445th Birthday (1575)
Jul 26 - Comet C/2014 F3 (Sheppard-Trujillo) At Opposition (4.930 AU)
Jul 26 - Apollo Asteroid 11500 Tomaiyowit Closest Approach To Earth (0.869 AU)
Jul 26 - Asteroid 7175 Janegoodall Closest Approach To Earth (1.275 AU)
Jul 26 - Asteroid 10168 Stony Ridge Closest Approach To Earth (1.790 AU)
Jul 26 - 15th Anniversary (2005), STS-114 Launch (Space Shuttle Discovery, ISS)
Jul 26-31 - 50th International Symposium on Multiparticle Dynamics (ISMD2020), Perthshire, United Kingdom
Jul 27 - Comet 141P-A/Machholz Closest Approach To Earth (1.258 AU)
Jul 27 - Comet 141P/Machholz Closest Approach To Earth (1.260 AU)
Jul 27 - Comet 186P/Garradd At Opposition (3.582 AU)
Jul 27 - Atira Asteroid 2019 AQ3 Closest Approach To Earth (0.717 AU)
Jul 27 - Apollo Asteroid 428694 Saule Closest Approach To Earth (0.917 AU)
Jul 27 - 150th Anniversary (1870), 1st Observations of the South Delta-Aquarids Meteor Shower by G.L. Tupman
Jul 27-30 - SIAM Conference on Nonlinear Waves and Coherent Structures, Bremen, Germany
Jul 27-30 - Meeting: Waves and Instabilities in the Solar Atmosphere (WISA 2020), Newcastle, United Kingdom
Jul 27-31 - Exoplanets III Conference, Heidelberg, Germany
Jul 27-31 - Workshop: Intermediate Luminosity Optical Transients - Giant Eruptions or Stellar Mergers?, Sexten, Italy
Jul 27-31 - Conference: 20 Years of Cosmic Shear - Gravitational Lensing and Cosmology in the 2020s, Ruhr-University Bochum, Germany
Jul 27-31 -[Feb 18] Conference: Gauge/Gravity Duality 2020, Geneva, Switzerland
Jul 27-31 - 2nd International Conference on Physics and Chemistry of Combustion and Processes in Extreme Environments, Samara, Russia
Jul 27-Aug 01 - 14th Quark Confinement and the Hadron Spectrum Conference (Confinement XIV), Stavanger, Norway
Jul 27-Aug 07 -[Feb 20] 9th International Conference on New Frontiers in Physics (ICNFP 2020), Kolymbari, Crete, Greece
Jul 28 - Comet P/2011 U2 (Bressi) Closest Approach To Earth (4.093 AU)
Jul 28 - Apollo Asteroid 1685 Toro Closest Approach To Earth (0.331 AU)
Jul 28-31 - Hinode 14 Science Meeting, Washington DC
Jul 29 - South Delta-Aquarids Meteor Shower Peak
Jul 29 - Comet 376P/LONEOS At Oppostion (2.534 AU)
Jul 29 - Asteroid 136 Austria Closest Approach To Earth (1.103 AU)
Jul 29 - Plutino 2017 OF69 At Opposition (42.459 AU)
Jul 29 - 35th Anniversary (1985), STS-51-F Launch (Space Shuttle Challenger, Spacelab)
Jul 30 - Comet 2P/Encke Closest Approach To Earth (0.622 AU
Jul 30 - Comet 85P/Boethin Perihelion (1.129 AU)
Jul 30 - Comet 16P/Brooks Closest Approach To Earth (1.837 AU)
Jul 30 - Comet 115P/Maury Perihelion (2.057 AU)
Jul 30 - Asteroid 6154 Stevesynnott Closest Approach To Earth (0.992 AU)
Jul 30 - Asteroid 24997 Petergabriel Closest Approach To Earth (1.063 AU)
Jul 30 - Asteroid 3763 Quianxuesen Closest Approach To Earth (1.339 AU)
Jul 30 - Dennis di Cicco's 70th Birthday (1950)
Jul 30 - 410th Anniversary (1610), Galileo Observes Saturn's Rings
Jul 30-Aug 05 - 40th International Conference on High Energy Physics (ICHEP2020), Prague, Czech Republic
Jul 31 - Comet 265P/LINEAR At Opposition (1.622 AU)
Jul 31 - Comet 97P/Metcalf-Brewington At Opposition (3.393 AU)
Jul 31 - Comet C/2014 F3 (Sheppard-Trujillo) Closest Approach To Earth (4.925 AU)
Jul 31 - Apollo Asteroid 2018 PY7 Near-Earth Flyby (0.023 AU)
Jul 31 - Aten Asteroid 2007 RF1 Near-Earth Flyby (0.027 AU)
Jul 31 - Asteroid 9258 Johnpauljones Closest Approach To Earth (0.911 AU)
Jul 31 - Asteroid 6560 Pravdo Closest Approach To Earth (1.163 AU)
Jul 31 - Asteroid 295565 Hannover Closest Approach To Earth (1.344 AU)
Jul 31 - Asteroid 18610 Arthurdent Closest Approach To Earth (2.000 AU)
Jul 31 - Asteroid 631 Philippina Closest Approach To Earth (2.085 AU)
Jul 31 - David Tholen's 65th Birthday (1955)
Jul 31 - 675th Anniversary (1345), Comet C/1345 O1 Near-Earth Flyby (18.9 Lunar Distance)
Jul 31-Aug 11 - Conference: SCAR COMNAP 2020 Antarctic Science, Hobart, Tasmania, Australia

August 2020

Aug ?? -[Feb 25] Starlink 9 (60) Falcon 9 Launch
Aug ?? - HRSAT PSLV Launch
Aug ?? - GPS 3A-4 Falcon 9 Launch
Aug ?? -[Feb 19] AFSPC 44 Falcon Heavy Launch
Aug ?? - 20th Anniversary (2000), Discovery of NWA 2737 Meteorite (Mars Meteorite)
Aug ?? - Brian Skiff's 65th Birthday (1955)
Aug 01 - Alpha Capricornids Meteor Shower Peak
Aug 01 - Comet 379P/Spacewatch At Opposition (2.186 AU)
Aug 01 - Comet 148P/Anderson-LINEAR At Opposition (3.717 AU)
Aug 01 - Comet 204P/LINEAR-NEAT At Opposition (3.916 AU)
Aug 01 - Atira Asteroid 2015 ME131 Closest Approach To Earth (0.188 AU)
Aug 01 - Amor Asteroid 9172 Abhramu Closest Approach To Earth (0.741 AU)
Aug 01 - Amor Asteroid 153591 (2001 SN263) (2 Moons) Closest Approach To Earth (1.905 AU)
Aug 01 - 20th Anniversary (2000), Discovery of the SAU 051 Meteorite (Mars Meteorite)
Aug 01-06 - 34th Annual Small Satellite Conference: Space Mission Architectures, Logan, Utah
Aug 02 - Moon Occults Dwarf Planet Pluto
Aug 02 - Hyperbolic Object A/2019 T1 At Opposition (3.933 AU)
Aug 02 - Asteroid 10797 Guatemala Closest Approach To Earth (1.392 AU)
Aug 02 - Aten Asteroid 5381 Sekmet Closest Approach To Earth (1.510 AU)
Aug 02 - 15th Anniversary (2005), MESSENGER, Earth Flyby
Aug 02 - 140th Anniversary (1880), Greenwich Mean Time (GMT) Officially Adopted in Great Britain
Aug 02-07 - 19th International Conference on the Origin of Life, Quito, Ecuador
Aug 02-Sep 06 - Workshop: Dark Matter from the Laboratory to the Cosmos, Aspen, Colorado
Aug 03 - Comet P/2011 R3 (Novichonok) At Opposition (3.814 AU)
Aug 03 - Comet 8P/Tuttle At Opposition (3.856 AU)
Aug 03 - Apollo Asteroid 2018 BD Near-Earth Flyby (0.019 AU)
Aug 03 - Asteroid 4148 McCartney Closest Approach To Earth (1.367 AU)
Aug 03 - Asteroid 71000 Hughdowns Closest Approach To Earth (1.747 AU)
Aug 03 - Asteroid 2636 Lassell Closest Approach To Earth (1.878 AU)
Aug 03 - Asteroid 19148 Alaska Closest Approach To Earth (2.410 AU)
Aug 03 - Plutino 2014 JP80 At Opposition (41.119 AU)
Aug 03 - Kuiper Belt Object 2013 AT183 At Opposition (64.409 AU)
Aug 03-06 - 2020 International Space Station (ISS) R&D Conference, Seattle, Washington
Aug 03-08 - Coastal Ocean Environment Summer School in Ghana 2020, Accra, Ghana
Aug 03-14 - 3rd Summer School on Theory, Mechanisms and Hierarchical Modeling of Climate Dynamics: Tropical Oceans, ENSO and their Teleconnections, Trieste, Italy
Aug 03-21 - The CODATA-RDA Research Data Science Summer School and Advanced Workshops, Trieste, Italy
Aug 04 - Amor Asteroid 189011 Ogmios Closest Approach To Earth (0.453 AU)
Aug 04 - Apollo Asteroid 4034 Vishnu Closest Approach To Earth (0.739 AU)
Aug 04 - Asteroid 3783 Morris Closest Approach To Earth (0.877 AU)
Aug 04 - Asteroid 46610 Besixdouz Closest Approach To Earth (1.106 AU)
Aug 04 - Asteroid 3869 Norton Closest Approach To Earth (1.134 AU)
Aug 04 - Asteroid 10637 Heimlich Closest Approach To Earth (2.272 AU)
Aug 04 - William Hamilton's 215th Birthday (1805)
Aug 04-06 -[Feb 18] Conference: Chandra Frontiers in Time-Domain Science, Cambridge, Massachusetts
Aug 05 - CRS-21/ Bishop Airlock Module/ Bobcat 1/ CySat 1/ NEUTRON 1/ PR-CuNaR 2/ SpaceICE/ SPACE-HAUC/ TJREVERB/ Alpha Falcon 9 Launch (International Space Station)
Aug 05 - Comet 191P/McNaught At Opposition (1.706 AU)
Aug 05 - Apollo Asteroid 2009 PQ1 Near-Earth Flyby (0.028 AU)
Aug 05 - Asteroid 7919 Prime Closest Approach To Earth (1.150 AU)
Aug 05 - Asteroid 54439 Topeka Closest Approach To Earth (1.312 AU)
Aug 05 - Neil Armstrong's 90th Birthday (1930)
Aug 05 - 940th Anniversary (1080), Comet C/1080 P1 Near-Earth Flyby (24.9 Lunar Distance)
Aug 05-07 - 11th Planetary Crater Consortium Meeting, Honolulu, Hawaii
Aug 05-07 -[Feb 22] 10th Session of the United Nations Committee of Experts on Global Geospatial Information Management, New York, New York
Aug 06 - Southern Iota Aquarids Meteor Shower Peak
Aug 06 - Comet 257P/Catalina At Opposition (1.252 AU)
Aug 06 - Comet 241P/LINEAR At Opposition (2.551 AU)
Aug 06 - Asteroid 3749 Balam (2 Moons) Closest Approach To Earth (1.445 AU)
Aug 07 - Comet 201P/LONEOS Closest Approach To Earth (2.163 AU)
Aug 07 - Comet P/1999 J6 (SOHO) Closest Approach To Earth (2.322 AU)
Aug 07 - Asteroid 5641 McCleese Closest Approach To Earth (0.862 AU)
Aug 07 - Asteroid 10195 Nebraska Closest Approach To Earth (1.534 AU)
Aug 07 - 20th Anniversary (2000), Brett Gladman, et al's Discovery of Saturn Moons Ymir, Paaliaq & Kiviuq
Aug 07 - Philip Cowell's 150th Birthday (1870)
Aug 08 - Comet 235P/LINEAR At Opposition (3.690 AU)
Aug 08 - Apollo Asteroid 9162 Kwiila Closest Approach To Earth (0.182 AU)
Aug 08 - Apollo Asteroid 3752 Camillo Closest Approach To Earth (1.175 AU)
Aug 08 - Asteroid 6486 Anitahill Closest Approach To Earth (1.377 AU)
Aug 08 - Asteroid 31000 Rockchic Closest Approach To Earth (1.902 AU)
Aug 08 - Dennis Tito's 80th Birthday (1940)
Aug 09 - Moon Occults Mars
Aug 09 - Asteroid 8444 Popovich Closest Approach To Earth (0.688 AU)
Aug 09 - Asteroid 2865 Laurel Closest Approach To Earth (1.457 AU)
Aug 09 - Asteroid 1157 Arabia Closest Approach To Earth (1.759 AU)
Aug 09 - Asteroid 1584 Fuji Closest Approach To Earth (1.832 AU)
Aug 09 - Albert Jones' 100th Birthday (1920)
Aug 09-13 - 2020 AAS/AIAA Astrodynamics Specialist Conference, South Lake Tahoe, California
Aug 09-14 -[Feb 23] 83rd Annual Meeting of The Meteoritical Society, Glascow, Scotland
Aug 09-14 - Gordon Research Conference: Frontiers in Nuclear and Hadronic Physics, Holderness, New Hampshire
Aug 09-15 - Star Conference: To Mark the 80th Birthday of Peter Eggleton, Cambridge, United Kingdom
Aug 09-15 - 16th Rencontres du Vietnam: Flavour Physics Conference, Quy Nhon, Vietnam
Aug 10 - Comet 102P/Shoemaker Closest Approach To Earth (1.538 AU)
Aug 10 - Comet P/2014 C1 (TOTAS) Closest Approach To Earth (2.596 AU)
Aug 10 - Amor Asteroid 3691 Bede Closest Approach To Earth (0.754 AU)
Aug 10 - Asteroid 9777 Enterprise Closest Approach To Earth (0.872 AU)
Aug 10 - Asteroid 1740 Paavo Nurmi Closest Approach To Earth (1.173 AU)
Aug 10 - Asteroid 28078 Mauricehilleman Closest Approach To Earth (1.255 AU)
Aug 10 - Asteroid 2160 Spitzer Closest Approach To Earth (1.620 AU)
Aug 10 - Asteroid 4151 Alanhale Closest Approach To Earth (2.590 AU)
Aug 10 - Kuiper Belt Object 470559 (2008 OG19) At Opposition (37.834 AU)
Aug 10 - 30th Anniversary (1990), Magellan, Venus Orbit Insertion
Aug 10-13 - 6th Asia Oceania Space Weather Alliance (AOSWA) Workshop, Bangi, Malaysia
Aug 10-14 - IGS 2020 Workshop: Science from Earth to Space, Boulder, Colorado
Aug 10-14 - IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE-APWC 2020)/International Conference on Electromagnetics in Advanced Applications (ICEAA 2020), Honolulu, Hawaii
Aug 10-14 - Conference: Frontiers in Numerical Relativity 2020 (FNR 2020), Jena, Germany
Aug 10-14 - Rubin Observatory (LSST) Project and Community Workshop, Tucson, Arizona
Aug 10-21 - 48th SLAC Summer Institute: The Almost Invisibles - Exploring the Weakly Coupled Universe (SSI2020), Menlo Park, California
Aug 10-Sep 04 - Workshop: Gearing up for High-Precision LHC Physics, Munich, Germany
Aug 11 - Comet 257P/Catalina Closest Approach To Earth (1.249 AU)
Aug 11 - Hyperbolic Object A/2019 T1 Closest Approach To Earth (3.921 AU)
Aug 11 - Centaur Object 83982 Crantor At Opposition (18.642)
Aug 11-13 -[Feb 18] Experimental Analysis of the Outer Solar System II Workhop, Fayetteville, Arkansas
Aug 12 - Perseids Meteor Shower Peak
Aug 12 - Comet 304P/Ory Perihelion (1.259 AU)
Aug 12 - Comet 348P/PANSTARRS At Opposition (2.516 AU)
Aug 12 - Amor Asteroid 3908 Nyx Closest Approach To Earth (0.594 AU)
Aug 12 - Apollo Asteroid 65803 Didymos Closest Approach To Earth (0.703 AU)
Aug 12 - Asteroid 6434 Jewitt Closest Approach To Earth (0.803 AU)
Aug 12 - Asteroid 243097 Batavia Closest Approach To Earth (1.595 AU)
Aug 12 - 15th Anniversary (2005), Mars Reconnaissance Orbiter Launch
Aug 12 - 60th Anniversary (1960), Echo 1 Launch
Aug 13 - Venus At Its Greatest Western Elongation (46 Degrees)
Aug 13 - Comet P/2014 A3 (PANSTARRS) At Opposition (4.043 AU)
Aug 13 - Asteroid 32730 Lamarr Closest Approach To Earth (0.928 AU)
Aug 13 - Asteroid 7041 Nantucket Closest Approach To Earth (0.989 AU)
Aug 13 - Asteroid 69263 Big Ben Closest Approach To Earth (1.595 AU)
Aug 13 - Apollo Asteroid 306367 Nut Closest Approach To Earth (1.664 AU)
Aug 13 - Kuiper Belt Object 2015 UH87 At Opposition (80.424 AU)
Aug 13 - Rasmus Bartholin's 395th Birthday (1625)
Aug 14 - Comet 184P/Lovas At Opposition (0.833 AU)
Aug 14 - Comet 182P/LONEOS At Opposition (3.594 AU)
Aug 14 - Asteroid 1197 Rhodesia Closest Approach To Earth (2.466 AU)
Aug 14-18 - 16th Annual Almost Heaven Star Party, Spruce Knob, West Virginia
Aug 15 - Comet 39P/Oterma At Opposition (5.567 AU)
Aug 15 - Apollo Asteroid 1566 Icarus Closest Approach To Earth (0.821 AU)
Aug 15 - Apollo Asteroid 6063 Jason Closest Approach To Earth (1.436 AU)
Aug 15 - 50th Anniversary (1970), Comet 82P/Gehrels Near-Jupiter Flyby (0.00143 AU)
Aug 15-22 - 43rd Committee on Space Research (COSPAR) Scientific Assembly, Sydney, Australia
Aug 15-23 - 36th Annual Mt. Kobau Star Party, near Osoyoos, Canada
Aug 15-23 - Merritt Star Quest, Loon Lake, Canada
Aug 16 - Moon Occults Asteroid 21 Lutetia
Aug 16 - Asteroid 4825 Ventura Closest Approach To Earth (0.979 AU)
Aug 16 - Asteroid 19019 Sunflower Closest Approach To Earth (1.278 AU)
Aug 16 - Asteroid 3255 Tholen Closest Approach To Earth (1.352 AU)
Aug 16 - Asteroid 24101 Cassini Closest Approach To Earth (1.841 AU)
Aug 16 - Asteroid 4169 Celsius Closest Approach To Earth (2.116 AU)
Aug 16 - Gabriel Lippmann's 175th Birthday (1845)
Aug 16-18 - GROWTH Astronomy School on Multi-wavelength Followup of Transients, Liverpool, United Kingdom
Aug 16-Sep 13 - Workshop: New Discoveries in the Era of High-Resolution, Low-Noise CMB Experiments, Aspen, Colorado
Aug 17 - Apollo Asteroid 4179 Toutatis Closest Approach To Earth (0.930 AU)
Aug 17 - 50th Anniversary (1970), Venera 7 Launch (USSR Venus Lander)
Aug 17-20 - Conference: Star Formation - From Clouds to Discs, Malahide, Ireland
Aug 17-21 - 22nd European Workshop on White Dwarfs (EUROWD20), Tübinge, Germany
Aug 17-21 - 13th Meeting on Cosmic Dust, Kitakyushu, Japan
Aug 18 - Comet 191P/McNaught Closest Approach To Earth (1.684 AU)
Aug 18 - Comet 263P/Gibbs At Opposition (3.832 AU)
Aug 18 - Asteroid 184011 Andypuckett Closest Approach To Earth (1.385 AU)
Aug 18 - 35th Anniversary (1985), Suisei Launch (Japan Comet Halley Mission)
Aug 18 - Brook Taylor's 335th Birthday (1685)
Aug 18 - 1630th Anniversary (390 AD), Comet C/390 Q1 Near-Earth Flyby (39 Lunar Distance)
Aug 19 - Comet 386P/PANSTARRS Perihelion (2.368 AU)
Aug 19 - Comet 365P/PANSTARRS At Opposition (3.965 AU)
Aug 19 - Comet 39P/Oterma Closest Approach To Earth (5.564 AU)
Aug 19 - Asteroid 30857 Parsec Closest Approach To Earth (1.284 AU)
Aug 19 - Asteroid 5335 Damocles (Burnt Out Comet) At Opposition (17.943 AU)
Aug 19 - 60th Anniversary (1960), Korabl-Sputnik 2 Launch (Carried Dogs Belka & Strelka)
Aug 19 - Story Musgrave's 85th Birthday (1935)
Aug 19 - Johan Gottlieb Gahn's 275th Birthday (1745)
Aug 19-26 - European Astrobiology Institute Summer School: Formation and Evolution of Planetary Systems and Habitable Planets, Torun, Poland
Aug 20 - Progress MS-14 Soyuz-2.1a Launch (International Space Station 75P)
Aug 20 - Comet 348P/PANSTARRS Closest Approach To Earth (2.507 AU)
Aug 20 - Atira Asteroid 2018 JB3 Closest Approach To Earth (1.056 AU)
Aug 20 - Asteroid 5608 Olmos Closest Approach To Earth (1.530 AU)
Aug 20 - Apollo Asteroid 3361 Orpheus Closest Approach To Earth (1.665 AU)
Aug 20 - Lecture: Failure *is* an Option: The Agony & Inspiration of Defeat, Pasadena, California
Aug 20 - 45th Anniversary (1975), Viking 1 Launch (Mars Lander/Orbiter)
Aug 20 - 135th Anniversary (1885), Ernst Hartwig's Discovery of S Andromedae Supernova
Aug 21 - Comet 120P/Mueller At Opposition (1.970 AU)
Aug 21 - Asteroid 7000 Curie Closest Approach To Earth (0.952 AU)
Aug 21 - Asteroid 13667 Samthurman Closest Approach To Earth (1.136 AU)
Aug 21 - Lecture: Failure *is* an Option - The Agony & Inspiration of Defeat, Pasadena, California
Aug 21 - 55th Anniversary (1965), Gemini 5 Launch (Gordon Cooper & Charles Conrad)
Aug 21 - Giacomo Maraldi's 355th Birthday (1665)
Aug 21-22 - Fundy Park Stargaze, Fundy National Park, Alma, Canada
Aug 21-23 - Nova East Star Party, Smileys Provincial Park, Canada
Aug 22 - Comet P/2014 C1 (TOTAS) At Opposition (2.616 AU)
Aug 22 - Comet 350P/McNaught Closest Approach To Earth (3.286 AU)
Aug 22 - Asteroid 6130 Hutton Closest Approach To Earth (0.780 AU)
Aug 22 - Asteroid 4345 Rachmaninoff Closest Approach To Earth (1.988 AU)
Aug 22 - Asteroid 12104 Chesley Closest Approach To Earth (2.006 AU)
Aug 22 - Asteroid 7853 Confucius Closest Approach To Earth (2.721 AU)
Aug 22 - Griffith Observatory Public Star Party, Los Angeles, California
Aug 22 - 20th Anniversary (2000), Green Bank Telescope - First Light
Aug 22 - Jim Scotti's 60th Birthday (1960)
Aug 22 - Ray Bradbury's 100th Birthday (1920)
Aug 23 - Amor Asteroid 3288 Seleucus Closest Approach To Earth (1.385 AU)
Aug 23 - Asteroid 129564 Christy Closest Approach To Earth (1.591 AU)
Aug 23 - Asteroid 742 Edisona Closest Approach To Earth (1.696 AU)
Aug 23 - Asteroid 3192 A'Hearn Closest Approach To Earth (1.771 AU)
Aug 23 - Asteroid 5720 Halweaver Closest Approach To Earth (2.053 AU)
Aug 23 - Asteroid 1877 Marsden Closest Approach To Earth (2.223 AU)
Aug 23 - Asteroid 33002 Everest Closest Approach To Earth (2.226 AU)
Aug 23 - Edward Fath's 140th Birthday (1880)
Aug 23 - William Eccles' 145th Birthday (1875)
Aug 23-28 - 19th Swiss Climate Summer School 2020, Grindelwald, Switzerland
Aug 24 - Comet 350P/McNaught At Opposition (3.287 AU)
Aug 24 - Asteroid 7645 Pons Closest Approach To Earth (1.594 AU)
Aug 24 - Asteroid 189202 Calar Alto Closest Approach To Earth (2.083 AU)
Aug 24 - Steven Lindsey's 60th Birthday (1960)
Aug 24-25 - 24th International Conference on Particle Physics and Cosmology (COSMO 2020), Rio de Janeiro, Brazil
Aug 24-26 - AIAA Propulsion and Energy Forum and Exposition, New Orleans, Louisiana
Aug 24-28 - Conference: Star Formation in Different Environments 2020 (SFDE20), Quy Nhon, Vietnam
Aug 25 - OSIRIS-REx, Asteroid Bennu Sample Collection
Aug 25 - Northern Iota Aquarids Meteor Shower Peak
Aug 25 - Comet 241P/LINEAR Closest Approach To Earth (2.498 AU)
Aug 25 - Apollo Asteroid 5786 Talos Closest Approach To Earth (0.439 AU)
Aug 25 - Asteroid 2022 West Closest Approach To Earth (1.565 AU)
Aug 25 - Asteroid 4149 Harrison Closest Approach To Earth (1.706 AU)
Aug 25 - Asteroid 35334 Yarkovsky Closest Approch To Earth (2.046 AU)
Aug 25 - Centaur Object 365756 ISON At Opposition (7.118 AU)
Aug 25 - 155th Anniversary (1865), Shergotty Meteorite Fall in India (Mars Meteorite)
Aug 25-27 - The 5th Network of Researchers on the Chemical Evolution of Life (NoR CEL) Conference, St. Andrews, Scotland
Aug 25-29 - IAU Symposium 365: Dynamics of Solar and Stellar Convection Zones and Atmospheres, Moscow, Russia
Aug 26 - Apollo Asteroid 2016 AH164 Near-Earth Flyby (0.040 AU)
Aug 26 - Asteroid 10001 Palermo Closest Approach To Earth (1.232 AU)
Aug 26 - Asteroid 5050 Doctorwatson Closest Approach To Earth (1.280 AU)
Aug 26 - Asteroid 84225 Verish Closest Approach To Earth (1.601 AU)
Aug 26 -[Feb 25] Colloquium: Observational Evidence for Cosmic Ray Driven Galactic Winds, Sydney, Australia
Aug 26 - Joseph-Michel Montgolfier's 280th Birthday (1740)
Aug 27 - Asteroid 316020 Linshuhow Closest Approach To Earth (1.067 AU)
Aug 27 - Asteroid 2999 Dante Closest Approach To Earth (1.450 AU)
Aug 27 - 35th Anniversary (1985), STS-51-I Launch (Space Shuttle Discovery, Leasat-3 Rescue)
Aug 28 - Comet 206P/Barnard-Boattini Closest Approach To Earth (1.744 AU)
Aug 28 - Comet P/2005 W3 (Kowalski) At Opposition (3.003 AU)
Aug 28 - Comet 179P/Jedicke At Opposition (4.010 AU)
Aug 28 - Asteroid 23638 Nagano Closest Approach To Earth (1.485 AU
Aug 28 - Dwarf Planet Ceres Closest Approach To Earth (1.996 AU)
Aug 28 - Asteroid 6136 Gryphon Closest Approach To Earth (2.116 AU)
Aug 28 -[Feb 21] Kuiper Belt Object 225088 Gonggong At Opposition (87.524 AU)
Aug 28 - Leroy Chiao's 60th Birthday (1960)
Aug 28 - 95th Anniversary (1925), Ellemeet Meteorite Fall in The Netherlands
Aug 28-Sep 05 - International School of Cosmic Ray Astrophysics (ISCRA), Erice, Sicily, Italy
Aug 29 - Moon Occults Dwarf Planet Pluto
Aug 29 - Comet 254P/McNaught Closest Approach To Earth (2.197 AU)
Aug 29 - Comet 254P/McNaught At Opposition (2.197 AU)
Aug 29 - Asteroid 8003 Kelvin Closest Approach To Earth (0.972 AU)
Aug 29 - Asteroid 11908 Nicaragua Closest Approach To Earth (2.149 AU)
Aug 29 - Centaur Object 52872 Okyrhoe At Opposition (9.890 AU)
Aug 29 - 45th Anniversary (1975), Discovery of Nova Cygni 1975
Aug 29-Sep 05 - 33rd URSI General Assembly and Scientific Symposium (GASS), Rome, Italy
Aug 30 - Hyperbolic Object A/2019 T2 At Opposition (2.572 AU)
Aug 30 - Comet 211P/Hill At Opposition (3.324 AU)
Aug 30 - Apollo Asteroid 54509 YORP Closest Approach To Earth (0.805 AU)
Aug 30 - Asteroid 64070 NEAT Closest Approach To Earth (1.186 AU)
Aug 30 - Asteroid 9998 ISO Closest Approach To Earth (1.645 AU)
Aug 30 - Asteroid 9954 Brachiosaurus Closest Approach To Earth (1.645 AU)
Aug 30-Sep 09 -[Feb 18] Workshop on the Standard Model and Beyond, Corfu, Greece
Aug 31 - Comet P/2012 TK8 (Tenagra) At Opposition (2.619 AU)
Aug 31 - Asteroid 666 Desdemona Occults HIP 78078 (6.0 Magnitude Star)
Aug 31 - Asteroid 6735 Madhatter Closest Approach To Earth (1.161 AU)
Aug 31 - Asteroid 787 Moskva Closest Approach To Earth (1.243 AU)
Aug 31 - Asteroid 144296 Steviewonder Closest Approach To Earth (1.691 AU)
Aug 31 - Asteroid 65675 Mohr-Gruber Closest Approach To Earth (2.571 AU)
Aug 31 - 70th Anniversary (1950), Albert V V2 Launch (Carried Mice)
Aug 31-Sep 03 - Conference: Climatic and Biotic Events of the Paleogene, Bremen, Germany
Aug 31-Sep 03 - 2020 Hypersonic Technology & Systems Conference, Springfield, Virginia
Aug 31-Sep 04 - 22nd International Conference on Particles and Nuclei (PANIC 20), Lisbon, Portugal
Aug 31-Sep 04 - 17th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS17), Grenoble, France
Aug 31-Sep 04 - 25th Congress of the International Commission for Optics (ICO-25) & 16th Conference of International Society on Optics Within Life Sciences (OWLS-16), Dresden, Germany
Aug 31-Sep 04 - 26th International Conference on High Resolution Molecular Spectroscopy, Prague, Czech Republic
Aug 31-Sep 04 - Annual Meeting of the Astronomische Gesellschaft 2020: Cosmic Evolution of Matter on All Scales, Berlin, Germany
Aug 31-Sep 04 - 15th IMPRS Summer School: Planet Formation in Protoplanetary Disks, Heidelberg, Germany

September 2020

Sep ?? -[Feb 25] Starlink 10 (60) Falcon 9 Launch
Sep ?? - GPS 3A-5 Falcon 9 Launch
Sep ?? - AFSPC 52 Falcon Heavy Launch
Sep ?? - NSLSAT 1 Astra F1 Launch
Sep ?? - NROL-101 Atlas 5 Launch
Sep 01 - Comet 184P/Lovas Closest Approach To Earth (0.803 AU)
Sep 01 - Comet 120P/Mueller Closest Approach To Earth (1.953 AU)
Sep 01 - Comet 187P/LINEAR Closest Approach To Earth (3.629 AU)
Sep 01 - Comet C/2018 A6 (Gibbs) At Opposition (3.659 AU)
Sep 01 - Apollo Asteroid 2011 ES4 Near-Earth Flyby (0.0005 AU)
Sep 01 - Asteroid 22521 ZZ Top Closest Approach To Earth (1.284 AU)
Sep 01 - Asteroid 1001 Gaussia Closest Approach To Earth (2.032 AU)
Sep 01 - Asteroid 1000 Piazzia Closest Approach To Earth (2.176 AU)
Sep 01 - Engelbert Zaschka's 125th Birthday (1895)
Sep 01 - Edgar Rice Burroughs' 145th Birthday (1875)
Sep 01-03 - 11th Electronic Materials and Processes for Space Workshop, Noordwijk, The Netherlands
Sep 01-04 - Workshop: Astrophysical Polarimetry in the Time-Domain Era, Lecco, Italy
Sep 01-04 - Photon 2020 Conference, Nottingham, United Kingdom
Sep 02 - Mars Winter Solstice
Sep 02 - Asteroid 67085 Oppenheimer Closest Approach To Earth (1.414 AU)
Sep 02 - Asteroid 34419 Corning Closest Approach To Earth (1.584 AU)
Sep 02 - Asteroid 20 Massalia Closest Approach To Earth (1.573 AU)
Sep 02 - Kuiper Belt Object 408706 (2004 NT33) At Opposition (38.542 AU)
Sep 02 - Kuiper Belt Object 2003 QX113 At Opposition (59.346 AU)
Sep 03 - Comet 312P/NEAT At Opposition (0.994 AU)
Sep 03 - Comet P/2013 O2 (PANSTARRS) At Opposition (1.862 AU)
Sep 03 - Hyperbolic Object A/2019 Q1 Closest Approach To Earth (4.084 AU)
Sep 03 - Asteroid 157 Dejanira Occults HIP 18718 (6.8 Magnitude Star)
Sep 03 - Asteroid 5066 Garradd Closest Approach To Earth (1.319 AU)
Sep 03 - Asteroid 7707 Yes Closest Approach To Earth (1.908 AU)
Sep 03 - Jupiter Trojan 5254 Ulysses At Opposition (4.126 AU)
Sep 03 - Carl Anderson's 115th Birthday (1905)
Sep 04 - Comet 156P/Russell-LINEAR At Opposition (0.650 AU)
Sep 04 - Comet 121P/Shoemaker-Holt At Opposition (3.973 AU)
Sep 04 - Comet 179P/Jedicke Closest Approach To Earth (4.002 AU)
Sep 04 - Comet 143P/Kowal-Mrkos At Opposition (4.048 AU)
Sep 04 - Asteroid 8952 ODAS Closest Approach To Earth (1.585 AU)
Sep 04 - Asteroid 12818 Tomhanks Closest Approach To Earth (1.601 AU)
Sep 04 - Asteroid 1801 Titicaca Closest Approach To Earth (2.096 AU)
Sep 04 - Centaur Object 7066 Nessus At Opposition (28.374 AU)
Sep 04 - Kuiper Belt Object 307982 (2004 PG115) At Opposition (37.968 AU)
Sep 04 - Plutino 175113 (2004 PF115) At Opposition (40.597 AU)
Sep 04 - 30th Anniversary (1990), Burnwell Meteorite Fall (Hit Porch in Kentucky)
Sep 05 - Comet 312P/NEAT Closest Approach To Earth (0.994 AU)
Sep 05 - Comet 335P/Gibbs At Opposition (3.762 AU)
Sep 05 - Hyperbolic Object A/2019 Q1 At Opposition (4.085 AU)
Sep 05 - Apollo Asteroid 4183 Cuno Closest Approach To Earth (1.671 AU)
Sep 05 - Kuiper Belt Object 120178 (2003 OP32) At Opposition (41.574 AU)
Sep 06 - Moon Occults Mars
Sep 06 - Comet 298P/Christensen Perihelion (2.203 AU)
Sep 06 - Comet 187P/LINEAR At Opposition (3.633 AU)
Sep 06 - Apollo Asteroid 465824 (2010 FR) Near-Earth Flyby (0.050 AU)
Sep 06 - Aten Asteroid 2100 Ra-Shalom Closest Approach To Earth (1.064 AU)
Sep 06 - Asteroid 63163 Jerusalem Closest Approach To Earth (1.747 AU)
Sep 06 - Carl Walz's 65th Birthday (1955)
Sep 06 - Stephen Singer-Brewster's 75th Birthday (1945)
Sep 06 - Walter Dornberger's 125th Birthday (1895)
Sep 06 - John Dallmeyer's 190th Birthday (1830)
Sep 06-11 - 12th International Conference on Position Sensitive Detectors (PSD12), Birmingham, United Kingdom
Sep 06-11 - 16th European Solar Physics Meeting (ESPM-16), Turin, Italy
Sep 06-12 - 16th Rencontres du Vietnam: Planetary Science - The Young Solar System, Quy Nhon, Vietnam
Sep 06-12 - 9th International Workshop on Astronomy and Relativistic Astrophysics (IWARA2020), Mexico City, Mexico
Sep 06-12 - 10th Very Large Telescope Interferometer (VLTI) School of Interferometery, Sophia-Antipolis, France
Sep 06-13 -[Feb 19] Neutrino Oscillation Workshop (NOW 2020), Rosa Marina, Ostuni, Italy
Sep 07 - Comet 234P/LINEAR At Opposition (3.722 AU)
Sep 07 - Asteroid 85197 Ginkgo Closest Approach To Earth (0.929 AU)
Sep 07 - Asteroid 3265 Fletcher Closest Approach To Earth (1.105 AU)
Sep 07 - Asteroid 171183 Haleakala Closest Approach To Earth (1.496 AU)
Sep 07 - Asteroid 2398 Jilin Closest Approach To Earth (1.580 AU)
Sep 07 - 25th Anniversary (1995), STS-69 Launch (Space Shuttle Endeavour, SPARTAN)
Sep 07-11 - Conference: Interplay Between Particle and Astroparticle Physics 2020 (IPA 2020), Vienna, Austria
Sep 07-11 - Conference: The Epoch of Galaxy Quenching - Understanding the Decline in Star Formation from Cosmic Noon to the Present, Cambridge, United Kingdom
Sep 07-11 - Conference: Origin, Growth and Feedback of Black Holes in Dwarf Galaxies, San Sebastian, Spain
Sep 07-11 -[Feb 25] Conference: Multiple Stellar Populations in the Next Decade (Padova 2020), Padova, Italy
Sep 07-11 - 16th European Solar Physics Meeting (ESPM-16), Turin, Italy
Sep 07-12 - 7th Byurakan International Summer School (7BISS) for Young Astronomers: Astronomy and Data Science, Byurakan, Armenia
Sep 08 - Comet P/2012 TK8 (Tenagra) Closest Approach To Earth (2.611 AU)
Sep 08 - Asteroid 5049 Sherlock Closest Approach To Earth (0.860 AU)
Sep 08 - Asteroid 12426 Racquetball Closest Approach To Earth (1.251 AU)
Sep 08 - Asteroid 5035 Swift Closest Approach To Earth (1.821 AU)
Sep 08 - Amor Asteroid 96189 Pygmalion Closest Approach To Earth (2.121 AU)
Sep 08 - Asteroid 3709 Polypoites Closest Approach To Earth (4.217 AU)
Sep 08 - Jupiter Trojan 1143 Odysseus At Opposition (4.378 AU)
Sep 08 - 20th Anniversary (2000), STS-106 Launch (Space Shuttle Atlantis, ISS)
Sep 08 - Marshall Space Flight Center's 60th Birthday (1960)
Sep 08 - Thomas Keith Glennan's 115th Birthday (1905)
Sep 08-10 - ESA Meeting: A Multi-wavelength View of Galaxy Clusters - Deriving Masses in the Era of Wide-field Surveys, Madrid, Spain
Sep 08-11 - Conference: Emergence of Life at the Crossroads of Physics and Chemistry, Santa Barbara, California
Sep 08-13 - 16th Nuclei in Cosmos Conference (NIC 2020), Chengdu, China
Sep 09 - Asteroid 13897 Vesuvius Closest Approach To Earth (2.526 AU)
Sep 09 - 45th Anniversary (1975), Viking 2 Launch (Mars Orbiter/Lander)
Sep 09-11 -[Feb 23] 8th Annual Giant Magellan Telescope (GMT) Community Science Meeting: Black Holes at All Scales, Sedona, Arizona
Sep 09-11 -[Feb 18] Conference: IRN Terascale@Bonn, Bonn, Germany
Sep 10 - Comet P/2013 W1 (PANSTARRS) Perihelion (1.421 AU)
Sep 10 - Comet C/2018 DO4 (Lemmon) At Opposition (3.547 AU)
Sep 10 - Asteroid 8627 Kunalnayyar Closest Approach To Earth (1.371 AU)
Sep 10 - Amor Asteroid 20460 Robwhiteley Closest Approach To Earth (1.764 AU)
Sep 10 - Asteroid 13801 Kohlhase Closest Approach To Earth (1.974 AU)
Sep 10 - Kuiper Belt Object 145452 (2005 RN43) At Opposition (39.609 AU)
Sep 10 - Kuiper Belt Object 2010 RF43 At Opposition (53.114 AU)
Sep 10 - 15th Anniversary (2005), Mike Brown, et al's Discovery of Dwarf Planet Eris Moon, Dysnomia
Sep 10-18 - 14th International School/Symposium for Space Simulations (ISSS-14), Kobe, Japan
Sep 11 - Neptune At Opposition
Sep 11 - Comet 317P/WISE Closest Approach To Earth (1.887 AU)
Sep 11 - Comet 257P/Catalina Perihelion (2.142 AU)
Sep 11 - Comet P/2010 H2 (Vales) At Opposition (3.514 AU)
Sep 11 - 35th Anniversary (1985), ICE, Comet Giacobini-Zinner Flyby
Sep 11 - Gherman Titov's 85th Birthday (1935)
Sep 12 - Comet 278P/McNaught Perihelion (2.087 AU)
Sep 12 - Hyperbolic Object A/2019 T2 Closest Approach To Earth (2.531 AU)
Sep 12 - Comet P/2005 W3 (Kowalski) Closest Approach To Earth (2.971 AU)
Sep 12 - Apollo Asteroid 2012 RM15 Near-Earth Flyby (0.038 AU)
Sep 12 - Amor Asteroid 4055 Magellan Closest Approach To Earth (0.574 AU)
Sep 12 - Asteroid 2956 Yeomans Closest Approach To Earth (1.858 AU)
Sep 12 - 15th Anniversary (2005), Hayabusa, Asteroid 25143 Itokawa Arrival
Sep 12 - 50th Anniversary (1970), Luna 16 Launch (Soviet Moon Sample Return)
Sep 12 - 850th Anniversary (1170), Gervase's Observation of Transit of Mars Across Jupiter
Sep 13 - Aten Asteroid 2017 US Near-Earth Flyby (0.044 AU)
Sep 13 - Amor Asteroid 4947 Ninkasi Closest Approach To Earth (0.445 AU)
Sep 13 - Asteroid 5870 Baltimore Closest Approach To Earth (1.256 AU)
Sep 13 - Asteroid 5392 Parker Closest Approach To Earth (2.199 AU)
Sep 13-17 - 18th Divisional Meeting of the High Energy Astrophysics Division (HEAD), Tucson, Arizona
Sep 14 - Asteroid 373 Melusina Occults HIP 16203 (6.9 Magnitude Star)
Sep 14 - Asteroid 159814 Saguaro Closest Approach To Earth (1.208 AU)
Sep 14 - Asteroid 6758 Jesseowens Closest Approach To Earth (1.793 AU)
Sep 14 - Asteroid 4628 Laplace Closest Approach To Earth (1.975 AU)
Sep 14 - Gene Trinh's 70th Birthday (1950)
Sep 14 - John Dobson's 105th Birthday (1915)
Sep 14-17 - Spanish Portuguese Relativity Meeting 2020 (EREP2020), Aveiro, Portugal
Sep 14-18 - ESO-ESA Joint 2020 Science Workshop: New Science in the Multi-Messenger Era, Garching, Germany
Sep 14-18 -[Feb 24] NASA Astrobiology Graduate Conference (AbGradCon), Tokyo, Japan
Sep 14-18 - Workshop: Advances and Challenges in Computational Relativity, Providence, Rhode Island
Sep 14-18 - Conference: Wheel of Star Formation, Prague, Czech Republic
Sep 14-18 - 32nd Congress of the International Council of the Aeronautical Sciences (ICAS), Shanghai, China
Sep 14-18 - International Symposium: Astronomical Surveys and Big Data 2, Byurakan, Armenia
Sep 14-18 - 16th International Global Atmospheric Chemistry (IGAC) Conference, Manchester, United Kingom
Sep 14-18 - ForestSAT 2020 Conference, Krakow, Poland
Sep 14-18 - 9th East Asian Numerical Astrophysics Meeting (EANAM 2020), Okinawa, Japan
Sep 14-Oct 02 -[Feb 19] Conference: Quantum Field Theory at the Boundary, Mainz, Germany
Sep 15 - Comet P/2007 R2 (Gibbs) Perihelion (1.638 AU)
Sep 15 - Comet 244P/Scotti At Opposition (3.778 AU)
Sep 15 - Asteroid 4416 Ramses Closest Approach To Earth (0.795 AU)
Sep 15 - Asteroid 434 Hungaria Closest Approach To Earth (0.853 AU)
Sep 15 - Asteroid 12608 Aesop Closest Approach To Earth (1.081 AU)
Sep 15 - Asteroid 3414 Champollion Closest Approach To Earth (1.193 AU)
Sep 15 - Asteroid 10958 Mont Blanc Closest Approach To Earth (1.454 AU)
Sep 15 - Asteroid 12432 Usuda Closest Approach To Earth (1.996 AU)
Sep 15 - Lecture: We Are Made of Star Stuff, Salisbury, United Kingdom
Sep 15 - 55th Anniversary (1965), "Lost in Space" Debuts on TV
Sep 15 - Michiel Overbeek's 100th Birthday (1920)
Sep 15 - 110th Anniversary (1910), Theodor Wulf Proposes Cosmic Radiation Comes From Outer Space
Sep 15-18 - 21st Advanced Maui Optical and Space (AMOS) Surveillance Technologies Conference, Maui, Hawaii
Sep 15-20 - Northern Prairie Star Party, Black Nugget Lake, Canada
Sep 16 - International Day for the Preservation of the Ozone Layer
Sep 16 - Asteroid 13123 Tyson Closest Approach To Earth (0.944 AU)
Sep 16 - Asteroid 3263 Bligh Closest Approach To Earth (1.436 AU)
Sep 16 - Asteroid 2906 Caltech Closest Approach To Earth (2.069 AU)
Sep 16 - Asteroid 10916 Okina-Ouna Closest Approach To Earth (1.882 AU)
Sep 16 - Asteroid 39415 Janeausten Closest Approach To Earth (2.566 AU)
Sep 16 - Jupiter Trojan 588 Achilles At Opposition (4.181 AU)
Sep 16-17 - ESA Industry Space Days 2020, Noordwijk, The Netherlands
Sep 16-18 - Workshop: 9th Very Large Volume Neutrino Telescopes Workshop (VLVnT), Valencia, Spain
Sep 17 - Asteroid 2 Pallas Occults UCAC4-500-092848 (12.5 Magnitude Star)
Sep 17 - Asteroid 2807 Karl Marx Closest Approach To Earth (2.070 AU)
Sep 17 - Apollo Asteroid 5143 Heracles Closest Approach To Earth (2.251 AU)
Sep 17 - Asteroid 5738 Billpickering Closest Approach To Earth (2.503 AU)
Sep 17 -[Feb 21] Apollo Asteroid 2015 TB14 Closest Approach To Earth (3.053 AU)
Sep 17 - Lecture: Visualizing Space Exploration - AR, VR & Emerging Tech, Pasadena, California
Sep 17 - Ed Mitchell's 90th Birthday (1930)
Sep 17 - Tom Stafford's 90th Birthday (1930)
Sep 17-18 - 12th Summit on Earth Observation Business, Paris, France
Sep 18 - Comet 296P/Garradd Perihelion (1.823 AU)
Sep 18 - Apollo Asteroid 2014 QJ33 Near-Earth Flyby (0.029 AU)
Sep 18 - Asteroid 163693 Atira Closest Approach To Earth (0.585 AU)
Sep 18 - Asteroid 7958 Leakey Closest Approach To Earth (0.756 AU)
Sep 18 - Asteroid 1816 Liberia Closest Approach To Earth (1.692 AU)
Sep 18 - Kuiper Belt Object 66652 Borasisi At Opposition (41.312 AU)
Sep 18 -[Feb 18] Galaxy Forum Europe 2020, Vienna, Austria
Sep 18 - Lecture: Visualizing Space Exploration - AR, VR & Emerging Tech, Pasadena, California
Sep 18 - 55th Anniversary (1965), Kaoru Ikeya & Tsutomu Seki's Discovery of Comet Ikeya-Seki
Sep 18 - 55th Anniversary (1965), 1st Episode of "I Dream of Jeannie" Airs on TV
Sep 18-19 - Kouchibouguac Fall Star Fest, Kouchibouguac National Park, Canada
Sep 18-20 - 34th Annual Alberta Star Party, Starland, Canada
Sep 19 - Comet P/2013 O2 (PANSTARRS) Closest Approach To Earth (1.829 AU)
Sep 19 - Comet 244P/Scotti Closest Approach To Earth (3.775 AU)
Sep 19 - Asteroid 6594 Tasman Closest Approach To Earth (1.410 AU)
Sep 19 - Apollo Asteroid 4197 Morpheus Closest Approach To Earth (1.895 AU)
Sep 19 - Star Party at Oracle State Park, Oracle, Arizona
Sep 19 - 5th Anniversary (2015), Maldonaldo Meteorite Fall in Uruguay (Hit House)
Sep 19 - Sunita Williams' 55th Birthday (1965)
Sep 20 - Apollo Asteroid 2017 SL16 Near-Earth Flyby (0.023 AU)
Sep 20 - Asteroid 7758 Poulanderson Closest Approach To Earth (1.409 AU)
Sep 20 - Asteroid 305254 Moron Closest Approach To Earth (1.712 AU)
Sep 20 - Asteroid 4255 Spacewatch Closest Approach To Earth (3.038 AU)
Sep 20 - 70th Anniversary (1950), Murray Meteorite Fall (Hit Buildings in Kentucky)
Sep 20-23 - SPIE Conference: Space, Satellites + Sustainability (S3), Edinburgh, United Kingdom
Sep 20-25 - Workshop: Women in Mathematical Physics, Banff, Canada
Sep 21 - Asteroid 9252 Goddard Closest Approach To Earth (1.601 AU)
Sep 21 - Asteroid 1776 Kuiper Closest Approach To Earth (2.131 AU)
Sep 21-23 - Aaronson Symposium: Galactic Dynamics with Resolved Stars, Tucson, Arizona
Sep 21-23 - 7th International Workshop on On-Board Payload Data Compression (OBPDC 2020), Athens, Greece
Sep 21-24 - Remote Sensing Symposium, Edinburgh, United Kingdom
Sep 21-25 - 9th Microquasar Workshop: Celebrating Over 50 Years of Discovery, Cagliari, Italy
Sep 21-25 - ION GNSS+ 2020 Conference, St. Louis, Missouri
Sep 21-25 - Communicating Astronomy with the Public (CAP) Conference, Sydney, Australia
Sep 21-25 - 16th International Symposium on Nuclei in the Cosmos (NIC 2020), Chengdu, China
Sep 21-25 - Conference: Galaxy Evolution - From Cosmic Dawn to the Milky Way with the ESA Euclid Mission and ESO Telescopes, Madrid, Spain
Sep 21-25 - 17th Hvar Astrophysical Colloquium: The Sun and Heliosphere, Hvar, Croatia
Sep 22 - Autumnal Equinox, 13:31 UT
Sep 22 - Asteroid 697 Galilea Closest Approach To Earth (1.444 AU)
Sep 22 - Asteroid 16481 Thames Closest Approach To Earth (1.931 AU)
Sep 22 - Asteroid 19911 Rigaux Closest Approach To Earth (2.937 AU)
Sep 22 - Jupiter Trojan 4063 Euforbo At Opposition (3.979 AU)
Sep 22-23 - Space and Underwater Tourism Universal Summit (SUTUS 2020), Marbella, Spain
Sep 22-24 - 2020 NASA Innovative Advanced Concepts (NIAC) Symposium, Tucson, Arizona
Sep 22-25 - Workshop: Comet-like Activity of Small Bodies in the Solar System, Tatranska Lomnica, Slovakia
Sep 22-25 - Conference: Celebrating Sydney Leach - From Molecular Photophysics to Astrobiology with Musical Interludes, Orsay, France
Sep 23 - Apollo Asteroid 4450 Pan Closest Approach To Earth (0.708 AU)
Sep 23 - Asteroid 1537 Transylvania Closest Approach To Earth (1.194 AU)
Sep 23 - Asteroid 2873 Binzel Closest Approach To Earth (1.250 AU)
Sep 23 - Asteroid 301 Bavaria Closest Approach To Earth (1.736 AU)
Sep 23 - 20th Anniversary (2000), Brett Gladman & John Kavelaars' Discovery of Saturn Moons Siarnaq, Tarvos, Ijiraq, Thrymr, Skathi, Mundilfari, Erriapus & Suttungr
Sep 23-25 - Terrestrial Ecology Science Team Meeting, College Park, Maryland
Sep 23-26 - Conference: Cosmology on Small Scales 2020 - Excessive Extrapolations and Selected Controversies in Cosmology, Prague, Czech Republic
Sep 24 - Comet 94P/Russell At Opposition (3.665 AU)
Sep 24 - Asteroid 84566 VIMS Closest Approach To Earth (2.120 AU)
Sep 24 - Asteroid 12561 Howard Closest Approach To Earth (2.512 AU)
Sep 24 - Jupiter Trojan 911 Agamemnon At Opposition (4.076 AU)
Sep 24 - 30th Anniversary (1990), Stuart Wilbur's Discovery of Great White Spot on Saturn
Sep 24 - 50th Anniversary (1970), Luna 16 Returns to Earth (1st Unmanned Lunar Sample Return)
Sep 24 - John Young's 90th Birthday (1930)
Sep 24-25 - European Lasers, Photonics and Optics Technologies Summit: Multifaceted Aspects of Lasers, Photonics & Optics Technologies (ELOS 2020), Paris, France
Sep 24-30 - 3rd Workshop on Hadronic Contributions to New Physics Searches, Kolumbari, Crete, Greece
Sep 25 - Comet 312P/NEAT Perihelion (1.983 AU)
Sep 25 - Comet 110P/Hartley At Opposition (2.301 AU)
Sep 25 - Asteroid 3173 McNaught Closest Approach To Earth (0.996 AU)
Sep 25 - Asteroid 8146 Jimbell Closest Approach To Earth (1.909 AU)
Sep 26 - International Observe The Moon Night
Sep 26 - Comet 317P/WISE Perihelion (1.274 AU)
Sep 26 - Comet 52P/Harrington-Abell At Opposition (2.465 AU)
Sep 26 - Comet 215P/NEAT Closest Approach To Earth (2.791 AU)
Sep 26 - Kuiper Belt Object 523639 (2010 RE64) At Opposition (50.124 AU)
Sep 26 - Griffith Observatory Public Star Party, Los Angeles, California
Sep 26 - 15th Anniversary (2005), Cassini, Hyperion Flyby
Sep 27 - Parker Solar Probe, 6th Perihelion
Sep 27 - Comet 88P/Howell Perihelion (1.353 AU)
Sep 27 - Comet P/2005 T2 (Christensen) Closest Approach To Earth (1.603 AU)
Sep 27 - Apollo Asteroid 66391 Moshup Closest Approach To Earth (0.773 AU)
Sep 27 - Asteroid 4738 Jimihendrix Closest Approach To Earth (1.339 AU)
Sep 27 - Asteroid 397278 Arvidson Closest Approach To Earth (1.844 AU)
Sep 27 - Asteroid 42776 Casablanca Closest Approach To Earth (2.304 AU)
Sep 27 - Jupiter Trojan 2797 Teucer At Opposition (4.348 AU)
Sep 27 - 195th Anniversary (1825), Honolulu Meteorite Fall in Hawaii
Sep 27-Oct 02 - OHP 2020 Colloquium: Planets of Red Dwarf Stars, Haute-Provence, France
Sep 27-Oct 02 - Europlanet Science Congress 2020 (EPSC), Granada, Spain
Sep 28 - Comet P/2011 W1 (PANSTARRS) At Opposition (3.062 AU)
Sep 28 - Asteroid 21 Lutetia Occults UCAC4 552-043549 (12.0 Magnitude Star)
Sep 28 - Asteroid 14143 Hadfield Closest Approach To Earth (1.071 AU)
Sep 28 - Asteroid 1071 Brita Closest Approach To Earth (1.710 AU)
Sep 28 - Asteroid 73491 Robmatson Closest Approach To Earth (1.889 AU)
Sep 28 - Asteroid 716 Berkeley Closest Approach To Earth (2.050 AU)
Sep 28 - Asteroid 10063 Erinleeryan Closest Approach To Earth (3.107 AU)
Sep 28 - Kuiper Belt Object 120347 Salacia At Opposition (44.053 AU)
Sep 28 - Paul Villard's 160th Birthday (1860)
Sep 28 - Ismael Bullialdus' 415th Birthday (1605)
Sep 28-29 - Workshop: Model Based Space Systems and Software Engineering, Noordwijk, The Netherlands
Sep 28-Oct 02 - Conference: Probing the Universe with Multi-Messenger Astronomy (PUMA 2020), Sestri Levante, Italy
Sep 28-Oct 02 - Conference: From Clouds to Planets II - The Astrochemical Link, Berlin, Germany
Sep 28-Oct 02 - 7th Chile-Cologne-Bonn-Symposium: Physics and Chemistry of Star Formation, Puerto Varas, Chile
Sep 28-Oct 02 - Conference: Biosphere - Climate Interactions in Earth System Models at Global and Regional Scales, Trieste, Italy
Sep 28-Oct 03 - History of Astrophysics Workshop for Graduate Students, Vatican Observatory, Vatican City
Sep 29 - Amor Asteroid 15817 Lucianotesi Closest Approach To Earth (0.424 AU)
Sep 29 -[Feb 22] Asteroid 45509 Robertward Closest Approach To Earth (1.478 AU)
Sep 29 - Asteroid 172996 Stooke Closest Approach To Earth (1.478 AU)
Sep 29 - Harry McSween's 75th Birthday (1945)
Sep 29 - Karl Harding's 255th Birthday (1765)
Sep 30 - Comet 215P/NEAT At Opposition (2.794 AU)
Sep 30 - Comet 331P/Gibbs Perihelion (2.881 AU)
Sep 30 - Comet 254P/McNaught Perihelion (3.137 AU)
Sep 30 - Comet 95P/Chiron At Opposition (17.860 AU)
Sep 30 - Asteroid 2 Pallas Occults UCAC4 488-093043 (12.4 Magnitude Star)
Sep 30 - Asteroid 70783 Kenwilliams Closest Approach To Earth (1.333 AU)
Sep 30 - Asteroid 8630 Billprady Closest Approach To Earth (1.492 AU)
Sep 30 - 45th Anniversary (1975), Charles Kowal's Discovery of Jupiter Moon Themisto
Sep 30 - Lew Allen's 95th Birthday (1925)
Sep 30 - 140th Anniversary (1880), 1st Photo of Orion Nebula Taken by Henry Draper
Sep 30 - Michael Maestlin's 470th Birthday (1550)
Sep 30-Oct 02 - 9th International Systems & Concurrent Engineering for Space Applications Conference (SECESA 2020), Delft, The Netherlands
Sep 30-Oct 02 - European Consortium for Astroparticle Theory (EuCAPT) Annual Symposium, Geneva, Switzerland
Sep 30-Oct 02 - 3rd Information Universe Conference, Groningen, The Netherlands
Sep 30-Oct 05 - European Consortium for Astroparticle Theory (EuCAPT) Annual Symposium, Geneva, Switzerland

October 2020

Oct ?? - Cygnus CRS-14 (NG-14)/ PTD-2/ SPORT/ BeaverCube/ CaNOP/ EagleSat 2/ LinkSat/ RamSat/ ARKSAT 1/ CougSat 1 IT-SPINSAntares 230 Launch (International Space Station)
Oct ?? - Axiom Module Falcon Heavy Launch (International Space Station)
Oct ?? - New Generation Crewed Spacecraft CZ-5B/YZ-2 Launch (Manned)
Oct ?? - Chang'e 5 CZ-5/YZ-2 Launch (China Lunar Sample Return Mission)
Oct ?? -[Feb 25] NanoRacks/Lemur 2/Kepler Falcon 9 Launch
Oct ?? - Elektro-L N4 Proton-M/DM-03 Launch
Oct ?? - Hainan-1 Jielong-1 Launch
Oct ?? - AFSPC 8 (GSSAP 5, GSSAP 6) Atlas 5 Launch
Oct ?? - NROL-82/Crystal 18 Delta 4 Heavy Launch
Oct ?? - 40th Anniversary (1980), Stewart Collins' Discovery of Saturn Moon Prometheus
Oct ?? - 60th Anniversary (1960), Millbillillie Meteorite Shower in Australia
Oct ?? - James South's 235th Birthday (1785)
Oct 01 - Mercury At Its Greatest Eastern Elongation (25 Degrees)
Oct 01 - Comet 11P/Tempel-Swift-LINEAR At Opposition (0.572 AU)
Oct 01 - Apollo Asteroid 2001 GP2 Near-Earth Flyby (0.016 AU)
Oct 01 - 10th Anniversary (2010), Chang'e 2 Launch (China Moon Orbiter)
Oct 02 - Comet 233P/La Sagra Perihelion (1.783 AU)
Oct 02 - Comet 274P/Tombaugh-Tenagra At Opposition (3.240 AU)
Oct 02 - Asteroid 3487 Edgeworth Closest Approach To Earth (1.359 AU)
Oct 02 - Asteroid 4252 Godwin Closest Approach To Earth (1.969 AU)
Oct 02 - Asteroid 12397 Peterbrown Closest Approach To Earth (2.502 AU)
Oct 02 - Giuseppe (Bepi) Colombo's 100th Birthday (1920)
Oct 02-04 - NASA International Space Apps Challenge
Oct 03 - Moon Occults Mars
Oct 03 - Comet P/2007 R2 (Gibbs) Closest Approach To Earth (0.653 AU)
Oct 03 - Comet P/2006 H1 (McNaught) Closest Approach To Earth (2.455 AU)
Oct 03 - Asteroid 3989 Odin Closest Approach To Earth (0.842 AU)
Oct 03 - Asteroid 1024 Hale Closest Approach To Earth (1.273 AU)
Oct 03 - Asteroid 6128 Lasorda Closest Approach To Earth (1.677 AU)
Oct 03 - Asteroid 5053 Chladni Closest Approach To Earth (1.754 AU)
Oct 03 - Asteroid 580 Selene Closest Approach To Earth (2.110 AU)
Oct 03 - Plutino 469372 (2001 QF298) At Opposition (42.561 AU)
Oct 03 - Kuiper Belt Object 523794 (2015 RR245) At Opposition (61.026 AU)
Oct 03 - 35th Anniversary (1985), STS-51-J Launch (Space Shuttle Atlantis, DOD)
Oct 03 - Walter Alvarez's 80th Birthday (1940)
Oct 03 - Charles Duke's 85th Birthday (1935)
Oct 03 - 205th Anniversary (1815), Chassigny Meteorite Fall in France (Mars Meteorite)
Oct 04 - Comet 218P/LINEAR Perihelion (1.170 AU)
Oct 04 - Asteroid 1679 Nevanlinna Occults HIP 159 (6.9 Magnitude Star)
Oct 04 - Aten Asteroid 2010 UC Near-Earth Flyby (0.037 AU)
Oct 04 -[Feb 18] Asteroid 5864 Montgolfier Closest Approach To Earth (1.153 AU)
Oct 04 - Asteroid 12652 Groningen Closest Approach To Earth (2.347 AU)
Oct 04 - Viktor Knorre's 180th Birthday (1840)
Oct 04 - Eustachio Divini's 410th Birthday (1610)
Oct 04-10 - World Space Week
Oct 04-10 - Quadrennial Ozone Symposium (QOS 2020), Seoul, Korea
Oct 05 - Comet 110P/Hartley Closest Approach To Earth (2.285 AU)
Oct 05 - Comet P/2011 W1 (PANSTARRS) Closest Approach To Earth (3.055 AU)
Oct 05 - Comet 209P/LINEAR At Opposition (3.151 AU)
Oct 05 - Comet 79P/du Toit-Hartley At Opposition (3.650 AU)
Oct 05 - Asteroid 160512 Franck-Hertz Closest Approach To Earth (0.921 AU)
Oct 05 - Jupiter Trojan 3063 Makhaon At Opposition (4.380 AU)
Oct 05 - Kuiper Belt Object 308933 (2006 SQ372) At Opposition (28.819 AU)
Oct 05 - Pavel Popovich's 90th Birthday (1930)
Oct 05 - Paul Wild's 95th Birthday (1925)
Oct 05-08 - Workshop: Martian Geological Enigmas - From the Late Noachian Epoch to the Present Day, Houston, Texas
Ot 05-08 -[Feb 18] Conference on Dark and Quiet Skies for Science and Society, La Palma, Canary Islands, Spain
Oct 05-08 - 8th EGU Galileo Conference: A European Vision for Hydrological Observations and Experimentation, Naples, Italy
Oct 05-09 - Conference: Extragalactic Spectroscopic Surveys: Past, Present and Future of Galaxy Evolution, Santiago, Chile
Oct 05-09 - NovA2020 Conference: The Astrophysics of Classical Novae and Related Objects at the Dawn of the New Decade, Naples, Italy
Oct 05-09 -[Feb 23] Workshop: Witnessing Quantum Aspects of Gravity in a Laboratory, Leiden, The Netherlands
Oct 05-09 -[Feb 20] Workshop: Mathematical and Computational Approaches for Solving the Source- Free Einstein Field Equations, Providence, Rhode Island
Oct 05-09 - 1st H2020-SOLARNET Meeting: Sun and Society, Venice, Italy
Oct 05-10 - IAU Symposium 366: The Origin of Outflows in Evolved Stars, Leuven, Belgium
Oct 05-16 - African Workshop on GNSS and Space Weather, Rabat, Morocco
Oct 05-30 - Workshop: Star-Forming Clumps and Clustered Starbursts across Cosmic Time, Munich, Germany
Oct 06 - Comet 218P/LINEAR Closest Approach To Earth (2.005 AU)
Oct 06 - Comet 366P/Spacewatch At Opposition (3.380 AU)
Oct 06 - Asteroid 3001 Michelangelo Closest Approach To Earth (1.353 AU)
Oct 06 - 10th Anniversary (2010), Chang'e 2, Moon Orbit Insertion
Oct 06 - 30th Anniversary (1990), STS-41 Launch (Space Shuttle Discovery, Ulysses Deployment)
Oct 06 - David Brin's 70th Birthday (1950)
Oct 06 - Jorgen Christensen-Dalsgaard's 70th Birthday (1950)
Oct 06 - Jesse Ramsden's 285th Birthday (1735)
Oct 06 - Asteroid 249519 Whitneyclavin Closest Approach To Earth (1.839 AU)
Oct 07 - Comet 311P/PANSTARRS Perihelion (1.936 AU)
Oct 07 - Atira Asteroid 2012 VE46 Closest Approach To Earth (0.736 AU)
Oct 07 - Asteroid 7086 Bopp Closest Approach To Earth (0.759 AU)
Oct 07 - Asteroid 9341 Gracekelly Closest Approach To Earth (1.397 AU)
Oct 07 - Asteroid 27320 Vellinga Closest Approach To Earth (1.670 AU)
Oct 07 - Niehls Bohr's 135th Birthday (1885)
Oct 08 - Apollo Asteroid 6239 Minos Closest Approach To Earth (0.561 AU)
Oct 08 - Atira Asteroid 434326 (2004 JG6) Closest Approach To Earth (0.700 AU)
Oct 08 - Asteroid 3325 TARDIS Closest Approach To Earth (2.243 AU)
Oct 08 - Frank Herbert's 100th Birthday (1920)
Oct 08-10 - Space Generation Congress 2020, Dubai, United Arab Emirates
Oct 08-10 - Satellite Innovation 2020 Conference, Silicon Valley, California
Oct 09 - Draconids Meteor Shower Peak
Oct 09 - Apollo Asteroid 2008 HU Closest Approach To Earth (1.955 AU)
Oct 09 - Asteroid 9537 Nolan Closest Approach To Earth (1.963 AU)
Oct 09 - Asteroid 17427 Poe Closest Approach To Earth (2.263 AU)
Oct 09 - Asteroid 2197 Shanghai Closest Approach To Earth (2.265 AU)
Oct 09 - Neptune Trojan 2015 RW277 At Opposition (29.891 AU)
Oct 09 - Kuiper Belt Object 528381 (2008 ST291) At Opposition (60.902 AU)
Oct 10 - Comet 281P/MOSS At Opposition (3.838 AU)
Oct 10 - Asteroid 26858 Misterrogers Closest Approach To Earth (1.084 AU)
Oct 10 - Catalina State Park Star Party, Catalina State Park, Tucson, Arizona
Oct 11 - Asteroid 2579 Spartacus Closest Approach To Earth (1.310 AU)
Oct 11 - Apollo Asteroid 2201 Oljato Closest Approach To Earth (2.404 AU)
Oct 11 - Jupiter Trojan 624 Hektor At Opposition (4.386 AU)
Oct 11 - 20th Anniversary (2000), STS-92 Launch (Space Shuttle Discovery, International Space Station)
Oct 12 - Moon Occults Asteroid 433 Eros
Oct 12 - Comet P/2005 T2 (Christensen) At Opposition (1.632 AU)
Oct 12 - Comet P/2011 A2 (Scotti) At Opposition (2.451 AU)
Oct 12 - Apollo Asteroid 469219 Kamo`oalewa Closest Approach To Earth (0.147 AU)
Oct 12 - Aten Asteroid 99942 Apophis Closest Approach To Earth (0.216 AU)
Oct 12 - Asteroid 8256 Shenzhou Closest Approach To Earth (0.799 AU)
Oct 12 - Asteroid 2104 Toronto Closest Approach To Earth (2.609 AU)
Oct 12-16 - 71st International Astronautical Congress (IAC) 2020, Dubai, United Arab Emirates
Oct 12-16 - 2020 SDO Science Workshop: A Decade of Discovery, Vancouver, Canada
Oct 12-16 - Workshop on Dynamical Systems, Trieste, Italy
Oct 13 - Mars At Opposition
Oct 13 - Comet P/2007 R2 (Gibbs) At Opposition (0.662 AU)
Oct 13 - Comet 52P/Harrington-Abell At Opposition (2.425 AU)
Oct 13 - Comet 367P/Catalina At Opposition (3.240 AU)
Oct 13 - Comet 281P/MOSS Closest Approach To Earth (3.836 AU)
Oct 13 - Comet 81P/Wild At Opposition (3.901 AU)
Oct 13 - Apollo Asteroid 2018 GD2 Near-Earth Flyby (0.042 AU)
Oct 13 - Asteroid 116939 Jonstewart Closest Approach To Earth (1.761 AU)
Oct 13 - Asteroid 2068 Dangreen Closest Approach To Earth (1.593 AU)
Oct 13-16 - 4th Space Passive Components Day (SPCD 2020), Noordwijk, The Netherlands
Oct 13-16 - 17th Plinius Conference on Mediterranean Risks, Rome, Italy
Oct 14 - Vatira Asteroid 2020 AV2 Closest Approach To Earth (0.349 AU)
Oct 14 - Aten Asteroid 3362 Khufu Closest Approach To Earth (1.431 AU)
Oct 14 - Apollo Asteroid 4486 Mithra Closest Approach To Earth (1.774 AU)
Oct 14 - Kuiper Belt Object 303775 (2005 QU182) At Opposition (52.908 AU)
Oct 14 - Dwight Eisenhower's 130th Birthday (1890)
Oct 14-16 - 10th International Workshop On Multipactor, Corona and Passive Intermodulation In Space RF Hardware (MULCOPIM 2020), Valencia, Spain
Oct 15 - Comet 75D/Kohoutek At Opposition (1.184 AU)
Oct 15 - Asteroid 2069 Hubble Closest Approach To Earth (2.148 AU)
Oct 15 - Lecture: Galaxy of Horrors - Terrifying Real Planets, Pasadena, California
Oct 15 - Gareth Williams' 55th Birthday (1965)
Oct 16 - Comet 26P/Grigg-Skjellerup At Opposition (3.777 AU)
Oct 16 - BepiColombo, Venus Flyby
Oct 16 - Asteroid 215423 Winnecke Closest Approach To Earth (1.145 AU)
Oct 16 - Asteroid 67 Asia Closest Approach To Earth (1.276 AU)
Oct 16 - Asteroid 21564 Widmanstatten Closest Approach To Earth (1.573 AU)
Oct 16 - Asteroid 13677 Alvin Closest Approach To Earth (1.893 AU)
Oct 16 - Asteroid 114703 North Dakota Closest Approach To Earth (2.046 AU)
Oct 16 - Kuiper Belt Object 19308 (1996 TO66) At Opposition (46.578 AU)
Oct 16 - Lecture: Galaxy of Horrors - Terrifying Real Planets, Pasadena, California
Oct 17 - Comet P/2015 X6 (PANSTARRS) Perihelion (2.278 AU)
Oct 17 - Asteroid 12927 Pinocchio Closest Approach To Earth (1.001 AU)
Oct 17 - Apollo Asteroid 3671 Dionysus Closest Approach To Earth (1.121 AU)
Oct 17 - Asteroid 11945 Amsterdam Closest Approach To Earth (1.846 AU)
Oct 17 - Freimut Borngen's 90th Birthday (1930)
Oct 17 - Edouard Roche's 200th Birthday (1820)
Oct 18 - Asteroid 263251 Pandabear Closest Approach To Earth (1.020 AU)
Oct 18 - Asteroid 3473 Sapporo Closest Approach To Earth (1.718 AU)
Oct 18 - Dwarf Planet 136199 Eris At Opposition (94.973 AU)
Oct 19 - Comet P/2009 WX51 (Catalina) Closest Approach To Earth (1.197 AU)
Oct 19 - Comet P/2019 S2 (PANSTARRS) Closest Approach To Earth (3.410 AU)
Oct 19 - Comet P/2019 V2 (Groeller) Perihelion (5.022 AU)
Oct 19 - Asteroid 2409 Chapman Closest Approach To Earth (0.925 AU)
Oct 19 - Jupiter Trojan 1583 Antilochus At Opposition (3.906 AU)
Oct 19 - Subrahmanyan Chandrasekhar's 110th Birthday (1910)
Oct 19-23 - Continued, Enhanced Ocean Altimetry and Climate Monitoring from Space Conference, Venice, Italy
Oct 20 -[Feb 24] World Statistics Day
Oct 20 - Apollo Asteroid 2017 UH5 Near-Earth Flyby (0.023 AU)
Oct 20 - Asteroid 9548 Fortran Closest Approach To Earth (1.075 AU)
Oct 20 - Asteroid 439 Ohio Closest Approach To Earth (2.023 AU)
Oct 20 - 25th Anniversary (1995), STS-73 Launch (Space Shuttle Columbia, Spacelab)
Oct 20 - 50th Anniversary (1970), Zond 8 Launch (USSR Moon Flyby)
Oct 20-22 - Symposium: Beyond 200 Years of Astronomy - On the Bicentenary of the Establishment of the Royal Observatory at the Cape of Good Hope, Cape Town, South Africa
Oct 21 - Soyuz MS-17 Soyuz FG Launch (International Space Station 63S)
Oct 21 - Orionids Meteor Shower Peak
Oct 21 - Comet 378P/McNaught Perihelion (3.381 AU)
Oct 21 - Comet C/2019 L1 (PANSTARRS) At Opposition (3.523 AU)
Oct 21 - Comet C/2018 F4 (PANSTARRS) At Opposition (3.783 AU)
Oct 21 - Aten Asteroid 2018 VG Near-Earth Flyby (0.039 AU)
Oct 21 - Asteroid 193 Ambrosia Closest Approach To Earth (1.014 AU)
Oct 21 - Asteroid 15000 CCD Closest Approach To Earth (2.061 AU)
Oct 21 - Apollo Asteroid 2212 Hephaistos Closest Approach To Earth (2.366 AU)
Oct 21 - Kuiper Belt Object 202421 (2005 UQ513) At Opposition (46.980 AU)
Oct 21 - Ron McNair's 70th Birthday (1950)
Oct 21-24 - International Symposium on Satellite Navigation (ISSN2020), Nanjing, China
Oct 22 - Comet P/2006 H1 (McNaught) At Opposition (2.503 AU)
Oct 22 - Asteroid 2614 Torrence Closest Approach To Earth (1.120 AU)
Oct 22 - Asteroid 2200 Pasadena Closest Approach To Earth (1.758 AU)
Oct 22 - Asteroid 378214 Sauron Closest Approach To Earth (1.774 AU)
Oct 22 - Amor Asteroid 1915 Quetzalcoatl Closest Approach To Earth (1.906 AU)
Oct 22 - 45th Anniversary (1975), Venera 9, Venus Landing (Soviet Venus Orbiter/Lander)
Oct 22 - Karl Jansky's 115th Birthday (1905)
Oct 23 - Asteroid 4103 Chahine Closest Approach To Earth (1.053 AU)
Oct 23 - Asteroid 249521 Truth Closest Approach To Earth (1.053 AU)
Oct 23 - Asteroid 15845 Bambi Closest Approach To Earth (1.060 AU)
Oct 23 - Asteroid 9951 Tyrannosaurus Closest Approach To Earth (1.508 AU)
Oct 23 - 45th Anniversary (1975), Venera 10, Venus Orbit Insertion (USSR Venus Orbiter/Lander)
Oct 24 - Comet 156P/Russell-LINEAR Closest Approach To Earth (0.481 AU)
Oct 24 - Comet 105P/Singer Brewster At Opposition (3.539 AU)
Oct 24 - Asteroid 1171 Rusthawelia Occults HIP 5315 (6.2 Magnitude Star)
Oct 24 - Aten Asteroid 2017 TK6 Near-Earth Flyby (0.044 AU)
Oct 24 - Asteroid 3953 Perth Closest Approach To Earth (0.887 AU)
Oct 24 - Asteroid 9860 Archaeopteryx Closest Approach To Earth (2.167 AU)
Oct 24 - Asteroid 784 Pickeringia Closest Approach To Earth (2.629 AU)
Oct 24 - Griffith Observatory Public Star Party, Los Angeles, California
Oct 24 - 60th Anniversary (1960), Nedelin Disaster - Launch Pad Explosion, Over 100 People Killed
Oct 25 - European Summer Time Ends - Set Clock Back 1 Hour (European Union)
Oct 25 - Comet P/2011 A2 (Scotti) Closest Approach To Earth (2.425 AU)
Oct 25 - Comet P/2019 S2 (PANSTARRS) At Opposition (3.416 AU)
Oct 25 - Apollo Asteroid 2008 GM2 Near-Earth Flyby (0.045 AU)
Oct 25 - Asteroid 5020 Asimov Closest Approach To Earth (0.940 AU)
Oct 25 - Kuiper Belt Object 308379 (2005 RS43) At Opposition (43.107 AU)
Oct 25 - 45th Anniversary (1975), Venera 10, Venus Landing (USSR Venus Orbiter/Lander)
Oct 25 - David Schramm's 75th Birthday (1945)
Oct 25 - Rusty Schweickart's 85th Birthday (1935)
Oct 25 - Gilbert Lewis' 145th Birthday (1875)
Oct 25-28 -[Feb 18] Geologial Society of America (GSA) Annual Meeting, Montreal, Canada
Oct 25-30 - 52nd Annual Meeting of the Division for Planetary Sciences (DPS), Spokane, Washington
Oct 26 - Comet 184P/Lovas Perihelion (1.703 AU)
Oct 26 - Comet 214P/LINEAR At Opposition (3.616 AU)
Oct 26 - Comet P/2002 T5 (LINEAR) At Opposition (3.747 AU)
Oct 26 - Asteroid 2700 Baikonur Closest Approach To Earth (1.840 AU)
Oct 26 - Asteroid 371 Bohemia Closest Approach To Earth (1.848 AU)
Oct 26 - Amor Asteroid 8013 Gordonmoore Closest Approach To Earth (1.859 AU)
Oct 26 - Asteroid 13330 Dondavis Closest Approach To Earth (1.912 AU)
Oct 26 - Centaur Object 20461 Dioretsa At Opposition (31.096 AU)
Oct 26 - Gennadi Strekalov's 80th Birthday (1940)
Oct 26-28 - Wernher von Braun Memorial Symposium, Huntsville, Alabama
Oct 26-30 - CLUSTER3 Conference: A View from Italy on Galaxy Clusters in the 21st Century, Trieste, Italy
Oct 26-30 - 2020 International Symposium on Antennas and Propagation (ISAP 2020), Osaka, Japan
Oct 26-30 - Workshop: Nuclear and Atomic Transitions as Laboratories for High Precision Tests of Quantum Gravity inspired Models, Trento, Italy
Oct 26-30 -[Feb 20] Workshop: Mathematical and Computational Approaches for the Einstein Field Equations with Matter Fields, Providence, Rhode Island
Oct 26-30 - 22nd Meeting of the Consultative Committee for Time and Frequency (CCTF), Paris, France
Oct 27 - Comet 332P-F/Ikeya-Murakami At Opposition (2.240 AU)
Oct 27 - Comet C/2019 T3 (ATLAS) At Opposition (5.531 AU)
Oct 27 - Aten Asteroid 3753 Cruithne Closest Approach To Earth (0.574 AU)
Oct 27 - Amor Asteroid 887 Alinda Closest Approach To Earth (0.836 AU)
Oct 27 - Apollo Asteroid 1981 Midas Closest Approach To Earth (0.838 AU)
Oct 27 - Asteroid 4749 Ledzepplin Closest Approach To Earth (1.740 AU)
Oct 27 - Asteroid 22754 Olympus Closest Approach To Earth (2.048 AU)
Oct 27 - Asteroid 8373 Stephengould Closest Approach To Earth (3.029 AU)
Oct 27 - Asteroid 9767 Midsomer Norton Closest Approach To Earth (4.269 AU)
Oct 27 - Oleg Kotov's 55th Birthday (1965)
Oct 27 - Gustave Solomon's 90th Birthday (1930)
Oct 27-29 - 2020 GRACE Follow-On Science Team Meeting, Potsdam, Germany
Oct 28 - Comet 162P/Siding Spring Closest Approach To Earth (0.874 AU)
Oct 28 - Asteroid 4327 Ries Closest Approach To Earth (1.451 AU)
Oct 28 - Asteroid 3061 Cook Closest Approach To Earth (1.727 AU)
Oct 28 - Edward Ney's 100th Birthday (1920)
Oct 29 - Asteroid 14764 Kilauea Closest Approach To Earth (0.983 AU)
Oct 29 - Asteroid 9879 Mammuthus Closest Approach To Earth (1.026 AU)
Oct 29 - Asteroid 1217 Maximiliana Closest Approach To Earth (1.694 AU)
Oct 29 - Jupiter Trojan 1437 Diomedes At Opposition (4.131 AU)
Oct 29 - Neptune Trojan 530664 (2011 SO277) At Opposition (29.526 AU)
Oct 29 - Kuiper Belt Object 55636 (2002 TX300) At Opposition (41.935 AU)
Oct 29 - Gary Hug's 70th Birthday (1950)
Oct 29-Nov 01 - 37th International Communications Satellite Systems Conference (ICSSC-2019), Okinawa, Japan
Oct 30 - Comet C/2019 T3 (ATLAS) Closest Approach To Earth (5.530 AU)
Oct 30 - Asteroid 2 Pallas Occults UCAC4 466-091006 (12.2 Magnitude Star)
Oct 30 - Asteroid 1815 Beethoven Closest Approach To Earth (1.920 AU)
Oct 30 - Asteroid 45 Eugenia (2 Moons) Closest Approach To Earth (1.953 AU)
Oct 30 - Binary Apollo Asteroid 2017 YE5 Closest Approach To Earth (3.826 AU)
Oct 30 - 35th Anniversary (1985), STS-61-A Launch (Space Shuttle Challenger, Spacelab-D1)
Oct 31 - Blue Moon
Oct 31 - Uranus At Opposition
Oct 31 - Asteroid 3714 Kenrussell Closest Approach To Earth (1.131 AU)
Oct 31 - Asteroid 51828 Ilanramon Closest Approach To Earth (1.521 AU)
Oct 31 - Asteroid 284891 Kona Closest Approach To Earth (1.603 AU)
Oct 31 - Asteroid 16626 Thumper Closest Approach To Earth (1.876 AU)
Oct 31 - Asteroid 12846 Fullerton Closest Approach To Earth (1.977 AU)
Oct 31 - Michael Collins' 90th Birthday (1930)
Oct 31 - 100th Anniversary (1920), Walter Baade's Discovery of the 1st Centaur Object, 944 Hidalgo

November 2020

Nov ?? - CTS-2/USCV 2 Atlas 5 Launch (International Space Station)
Nov ?? - Chandrayaan 3 GSLV-II Launch (India Moon Rover)
Nov ?? - Resurs-P N4 Soyuz-2.1b Launch
Nov ?? - SARah 1 Falcon 9 Launch
Nov ?? - 20th Anniversary (2000), Discovery of the NWA 480 Meteorite (Mars Meteorite)
Nov 01 - Daylight Saving - Set Clock Back 1 Hour (United States)
Nov 01 - Comet P/2012 K3 (Gibbs) Closest Approach To Earth (2.623 AU)
Nov 01 - Comet 129P/Shoemaker-Levy At Opposition (3.289 AU)
Nov 01 - Comet 41P/Tuttle-Giacobini-Kresak At Opposition (3.787 AU)
Nov 01 - Hyperbolic Object A/2019 Y5 Closest Approach To Earth (4.991 AU)
Nov 01 - Asteroid 7850 Buenos Aires Closest Approach To Earth (1.686 AU)
Nov 01 - Asteroid 4763 Ride Closest Approach To Earth (1.911 AU)
Nov 01 - Asteroid 1958 Chandra Closest Approach To Earth (2.149 AU)
Nov 01 - Kuiper Belt Object 42301 (2001 UR163) At Opposition (52.492 AU)
Nov 02 - Comet 129P/Shoemaker-Levy Closest Approach To Earth (3.289 AU)
Nov 02 - Apollo Asteroid 2018 VP1 Near-Earth Flyby (0.003 AU)
Nov 02 - Asteroid 9619 Terrygilliam Closest Approach To Earth (1.052 AU)
Nov 02 - Asteroid 2867 Steins Closest Approach To Earth (1.377 AU)
Nov 02 - Asteroid 2791 Paradise Closest Approach To Earth (1.597 AU)
Nov 02 - Asteroid 234750 Amymainzer Closest Approach To Earth (2.022 AU)
Nov 02 - Neptune Trojan 2005 TN53 At Opposition (27.929 AU)
Nov 02 - Neptune Trojan 2001 QR322 At Opposition (29.205 AU)
Nov 02 - Kuiper Belt Object 15760 Albion (1992 QB1) At Opposition (40.439 AU)
Nov 02 - Harlow Shapley's 135th Birthday (1885)
Nov 02 - George Boole's 205th Birthday (1815)
Nov 02-06 - 17th European Space Weather Week, Glasgow, United Kingomd
Nov 03 - Taurids Meteor Shower Peak
Nov 03 - Comet 11P/Tempel-Swift-LINEAR Closest Approch To Earth (0.494 AU)
Nov 03 - Comet 75D/Kohoutek Closest Approach To Earth (1.418 AU)
Nov 03 - Hyperbolic Object A/2019 G2 At Opposition (3.180 AU)
Nov 03 - Comet P/1997 B1 (Kobayashi) At Opposition (3.990 AU)
Nov 03 - Comet 172P/Yeung At Opposition (4.015 AU)
Nov 03 - Aten Asteroid 326290 Akhenaten Closest Approach To Earth (0.463 AU)
Nov 03 - Asteroid 2074 Shoemaker Closest Approach To Earth (0.703 AU)
Nov 03 - Neptune Trojan 385571 Otrera At Opposition (28.341 AU)
Nov 03 - Neptune Trojan 385695 Clete At Opposition (28.624 AU)
Nov 03 - Tsutomu Seki's 90th Birthday (1930)
Nov 03-05 - 21st Annual Global MilSatCom Conference, London, United Kingdom
Nov 04 - Comet 349P/Lemmon At Opposition (3.646 AU)
Nov 04 - Comet C/2017 Y2 (PANSTARRS) Perihelion (4.633 AU)
Nov 04 - Apollo Asteroid 410777 (2009 FD) Closest Approach To Earth (0.173 AU)
Nov 04 - Atira Asteroid 2019 LF6 Closest Approach To Earth (0.701 AU
Nov 04 - Asteroid 3837 Carr Closest Approach To Earth (1.535 AU)
Nov 04 - 10th Anniversary (2010), EPOXI, Comet 103P/Hartley 2 Flyby
Nov 04-07 - 109th Meeting of the American Association of Variable Star Observers (AAVSO), Somerville, Massachussetts
Nov 05 - Comet 29P/Schwassmann-Wachmann Closest Approach To Earth (4.859 AU)
Nov 05 - Apollo Asteroid 2010 JL88 Near-Earth Flyby (0.027 AU)
Nov 05 - Asteroid 188693 Roosevelt Closest Approach To Earth (1.098 AU)
Nov 05 - Asteroid 12524 Conscience Closest Approach To Earth (1.127 AU)
Nov 05 - Asteroid 3123 Dunham Closest Approach To Earth (1.283 AU)
Nov 05 - Asteroid 58671 Diplodocus Closest Approach To Earth (1.437 AU)
Nov 05 - Asteroid 4587 Rees Closest Approach To Earth (2.129 AU)
Nov 05 - Apollo Asteroid 1863 Antinous Closest Approach To Earth (2.374 AU)
Nov 05 - Asteroid 1268 Libya Closest Approach To Earth (2.803 AU)
Nov 05 - Neptune Trojan 2014 QO441 At Opposition (32.329 AU)
Nov 05 - Leon Teisserenc de Bort's 165th Birthday (1855)
Nov 06 - Comet P/2002 T5 (LINEAR) Closest Approach To Earth (3.733 AU)
Nov 06 - Comet 29P/Schwassmann-Wachmann At Opposition (4.859 AU)
Nov 06 - Asteroid 2 Pallas Occults TYC 0468-03227-1 (11.9 Magnitude Star)
Nov 06 - Asteroid 25275 Jocelynbell Closest Approach To Earth (1.136 AU)
Nov 06 - Asteroid 9618 Johncleese Closest Approach To Earth (1.188 AU)
Nov 06 - Asteroid 10377 Kilimanjaro Closest Approach To Earth (1.759 AU)
Nov 06 - Asteroid 4457 van Gogh Closest Approach To Earth (1.850 AU)
Nov 06 - Asteroid 499 Venusia Closest Approach To Earth (2.226 AU)
Nov 06 - Kuiper Belt Object 472271 (2014 UM33) At Opposition (42.421 AU)
Nov 06 - Kuiper Belt Object 2014 UZ224 At Opposition (88.852 AU)
Nov 06-07 - New Worlds 2020 - Space Settlement Conference, Austin, Texas
Nov 07 - Asteroid 2843 Yeti Closest Approach To Earth (1.382 AU)
Nov 07 - Asteroid 9395 Saint Michel Closest Approach To Earth (1.854 AU)
Nov 07 - Asteroid 157064 Sedona Closest Approach To Earth (2.077 AU)
Nov 07 - Asteroid 5471 Tunguska Closest Approach To Earth (2.133 AU)
Nov 08 - Comet 332P-E/Ikeya-Murakami At Opposition (1.824 AU)
Nov 08 - Comet 252P/LINEAR At Opposition (1.841 AU)
Nov 08 - Comet 125P/Spacewatch At Opposition (3.611 AU)
Nov 08 - Comet P/2017 P1 (PANSTARRS) Closest Approach To Earth (5.433 AU)
Nov 08 - Asteroid 6790 Pingouin Closest Approach To Earth (1.486 AU)
Nov 08 - Plutino 47171 Lempo (2 Moons) At Opposition (29.718 AU)
Nov 08 - Kuiper Belt Object 120348 (2004 TY364) At Opposition (37.923 AU)
Nov 08 - 60th Anniversary (1960), Little Joe 5 Launch
Nov 08 - Charles Kowal's 80th Birthday (1940)
Nov 08 - Graham Bell's 85th Birthday (1935)
Nov 08 - 125th Anniversary (1895), Wilhelm Rontgen's Discovery of X-Rays
Nov 08-12 - Annual Conference on Astronomical Data Analysis Software & Systems (ADASS 2020), Granada, Spain
Nov 08-14 - 7th International Conference on Fission and Properties of Neutron-Rich Nuclei (ICFN7), Sanibel Island, Florida
Nov 09 - Carl Sagan Day
Nov 09 - Comet P/2016 BA14 (PANSTARRS) At Opposition (1.687 AU)
Nov 09 - Comet 332P-B/Ikeya-Murakami At Opposition (1.795 AU)
Nov 09 - Comet 332P-D/Ikeya-Murakami At Opposition (1.800 AU)
Nov 09 - Comet 332P-I/Ikeya-Murakami At Opposition (1.800 AU)
Nov 09 - Comet 332P-C/Ikeya-Murakami At Opposition (1.812 AU)
Nov 09 - Comet 332P-A/Ikeya-Murakami At Opposition (1.814 AU)
Nov 09 - Comet 332P-H/Ikeya-Murakami At Opposition (1.814 AU)
Nov 09 - Comet 91P/Russell Perihelion (2.604 AU)
Nov 09 - Comet 393P/Spacewatch-Hill Closest Approach To Earth (3.359
Nov 09 - Amor Asteroid 2018 VS4 Near-Earth Flyby (0.038 AU)
Nov 09 - Asteroid 2322 Kitt Peak Closest Approach To Earth (1.215 AU)
Nov 09 - Centaur Object 49036 Pelion At Opposition (20.355 AU)
Nov 09 - Neptune Trojan 2014 QP441 At Opposition (27.875 AU)
Nov 09 - Neptune Trojan 2014 UU240 At Opposition (29.691 AU)
Nov 09 - Plutino 144897 (2004 UX10) At Opposition (38.397 AU)
Nov 09 - Kuiper Belt Object 84522 (2002 TC302) At Opposition (42.976 AU)
Nov 09 - 15th Anniversary (2005), Venus Express Launch (ESA Venus Orbiter)
Nov 09 - 50th Anniversary (1970), OFO-1 (Orbiting Frog Otolith) Launch
Nov 09 - 95th Anniversary (1925), Robert Millikan Confirms Cosmic Rays From Outer Space
Nov 09 - Hermann Weyl's 135th Birthday (1885)
Nov 09-12 - Conference: Exoplanet Demographics, Pasadena, California
Nov 09-13 - Conference: Impact and Risk Relevant Climate Information from Global Scale Projections to Local Scale Climate Hazards, Trieste, Italy
Nov 10 - Sentinel-6 Michael Freilich Falcon 9 Launch
Nov 10 - Mercury At Its Greatest Western Elongation (19 Degrees)
Nov 10 - Comet P/2009 Q4 (Boattini) At Opposition (0.479 AU)
Nov 10 - Comet 332P/Ikeya-Murakami At Opposition (1.776 AU)
Nov 10 - Comet 331P/Gibbs Closest Approach To Earth (1.893 AU)
Nov 10 - Asteroid 3155 Lee Closest Approach To Earth (1.122 AU)
Nov 10 - Asteroid 44597 Thoreau Closest Approach To Earth (1.523 AU)
Nov 10 - Neptune Trojan 2013 VX30 At Opposition (26.639 AU)
Nov 10 - Kuiper Belt Object 55637 (2002 UX25) At Opposition (39.229 AU)
Nov 10 - Kuiper Belt Object 2014 ST373 At Opposition (50.800 AU)
Nov 10 - 50th Anniversary (1970), Luna 17 Launch (USSR Moon Rover Mission - Lunokhod 1)
Nov 10 - Ronald Evans' 90th Birthday (1930)
Nov 10 - Jack Northrop's 125th Birthday (1895)
Nov 10 - John Bevis' 325th Birthday (1695)
Nov 10-15 - Airshow China 2020, Guangdong, China
Nov 11 - Comet 277P/LINEAR At Opposition (1.013 AU)
Nov 11 - Comet 331P/Gibbs At Opposition (1.893 AU)
Nov 11 - Comet 332P-F/Ikeya-Murakami Closest Approach To Earth (2.208 AU)
Nov 11 - Comet 393P/Spacewatch-Hill At Opposition (3.360 AU)
Nov 11 - Comet P/2005 J1 (McNaught) At Opposition (4.094 AU)
Nov 11 - Asteroid 2912 Lapalma Closest Approach To Earth (1.422 AU)
Nov 11 - Asteroid 19695 Billnye Closest Approach To Earth (1.514 AU)
Nov 11 - Asteroid 589 Croatia Closest Approach To Earth (2.037 AU)
Nov 11 - Asteroid 13688 Oklahoma Closest Approach To Earth (2.194 AU)
Nov 11 - Ben Gascoigne's 105th Birthday (1915)
Nov 11 - Carl Wirtanen's 110th Birthday (1910)
Nov 11 - Vesto Slipher's 145th Birthday (1875)
Nov 12 - Asteroid 4804 Pasteur Closest Approach To Earth (1.453 AU)
Nov 12 - Asteroid 9134 Encke Closest Approach To Earth (1.924 AU)
Nov 12 - Asteroid 1578 Kirkwood Closest Approach To Earth (2.062 AU)
Nov 12 - Neptune Trojan 2006 RJ103 At Opposition (29.164 AU)
Nov 12 - Lecture: What's to Love About Venus?, Pasadena, California
Nov 12 - 25th Anniversary (1995), STS-74 Launch (Space Shuttle Atlantis, Mir Space Station)
Nov 12 - 40th Anniversary (1980), Voyager 1, Saturn Flyby
Nov 13 - Comet C/2019 Y4 (ATLAS) Closest Approach To Earth (2.534 AU)
Nov 13 - Asteroid 7470 Jabberwock Closest Approach To Earth (1.447 AU)
Nov 13 - Asteroid 418532 Saruman Closest Approach To Earth (1.911 AU)
Nov 13 - Neptune Trojan 2012 UV177 At Opposition (27.888 AU)
Nov 13 - Lecture: What's to Love About Venus?, Pasadena, California
Nov 13 - David Rabinowitz's 60th Birthday (1960)
Nov 14 - Comet 36P/Whipple Closest Approach To Earth (2.167 AU)
Nov 14 - Hyperbolic Comet C/2019 K1 (ATLAS) Closest Approach To Earth (2.816 AU)
Nov 14 - Hyperbolic Object A/2019 Y5 At Opposition (5.019 AU)
Nov 14 - Apollo Asteroid 3200 Phaethon Closest Approach To Earth (0.637 AU)
Nov 14 - Asteroid 4636 Chile Closest Approach To Earth (1.313 AU)
Nov 14 - Asteroid 1777 Gehrels Closest Approach To Earth (1.612 AU)
Nov 14 - Asteroid 2097 Galle Closest Approach To Earth (1.733 AU)
Nov 14 - Asteroid 6001 Thales Closest Approach To Earth (1.904 AU)
Nov 14 - Asteroid 72432 Kimrobinson Closest Approach To Earth (1.988 AU)
Nov 14 - Edward White's 90th Birthday (1930)
Nov 14 - 340th Anniversary (1680), Gottfried Kirch's Discovery of the Great Comet of 1680
Nov 15 - Comet 332P-G/Ikeya-Murakami At Opposition (1.679 AU)
Nov 15 - Comet P/2017 P1 (PANSTARRS) At Opposition (5.439 AU)
Nov 15 - Asteroid 27363 Alvanclark Closest Approach To Earth (1.763 AU)
Nov 15 - Asteroid 12258 Oscarwilde Closest Approach To Earth (1.965 AU)
Nov 15 - Asteroid 12760 Maxwell Closest Approach To Earth (1.999 AU)
Nov 15 - Asteroid 224693 Morganfreeman Closest Approach To Earth (2.336 AU)
Nov 15 - 30th Anniversary (1990), STS-38 Launch (Space Shuttle Atlantis, DOD)
Nov 15-20 - International Conference on Heavy-Ion Collisions at Near-Barrier Energies (FUSION 20), Shizuoka, Japan
Nov 16 - Comet P/2009 WX51 (Catalina) Perihelion (0.800 AU)
Nov 16 - Comet 249P/LINEAR Closest Approach To Earth (1.382 AU)
Nov 16 - Comet 313P/Gibbs Closest Approach To Earth (1.695 AU)
Nov 16 - Comet P/2012 K3 (Gibbs) At Opposition (2.654 AU)
Nov 16 - Asteroid 6470 Aldrin Closest Approach To Earth (0.971 AU)
Nov 16 - Asteroid 1042 Amazone Closest Approach To Earth (2.112 AU)
Nov 16 - Asteroid 78453 Bullock Closest Approach To Earth (2.320 AU)
Nov 16 - Kuiper Belt Object 2012 VP113 At Opposition (83.127 AU)
Nov 16 - 55th Anniversary (1965), Venera 3 Launch (USSR Venus Lander)
Nov 16-18 - ASCEND Event: Accelerating Space Commerce, Exploration, and New Discovery, Las Vegas, Nevada
Nov 16-20 - Conference: Magnetism & Accretion, Cape Town, South Africa
Nov 16-20 -[Feb 20] Workshop: Statistical Methods for the Detection, Classification, and Inference of Relativistic Objects, Providence, Rhode Island
Nov 17 - Leonids Meteor Shower Peak
Nov 17 - Atira Asteroid 164294 (2004 XZ130) Closest Approach To Earth (0.777 AU)
Nov 17 - Asteroid 2476 Andersen Closest Approach To Earth (1.888 AU)
Nov 17 - Asteroid 1495 Helsinki Closest Approach To Earth (1.943 AU)
Nov 17 - 45th Anniversary (1975), Soyuz 20 Launch (Carried Tortoises)
Nov 17 - 50th Anniversary (1970), Luna 17 Moon Landing (USSR Moon Rover Mission - Lunokhod 1)
Nov 17 - Michael A'Hearn's 80th Birthday (1940)
Nov 17 - John Plaskett's 155th Birthday (1865)
Nov 17-19 - Space Tech Expo - Europe, Bremen, Germany
Nov 17-19 - Conference on Regional Climate Modeling and Extreme Events over South America: Results from the CORDEX-Flagship Pilot Study, Buenos Aires, Argentina
Nov 18 - Comet 156P/Russell-LINEAR Perihelion (1.333 AU)
Nov 18 - Amor Asteroid 4503 Cleobulus Closest Approach To Earth (0.955 AU)
Nov 18-20 -[Feb 18] 5th International Workshop on Instrumentation for Planetary Missions 2020 (IMP 2020), Tokyo, Japan
Nov 18-20 - Bahrain International Airshow, Sakhir Airbase, Bahrain
Nov 19 - Asteroid 5281 Lindstrom Closest Approach To Earth (1.758 AU)
Nov 19 - 15th Anniversary (2005), Hayabusa, Asteroid 25143 Itokawa Sample Collection
Nov 19 - 55th Anniversary (1965), Solrad 8 Launch
Nov 20 - Comet 277P/LINEAR Closest Approach To Earth (1.004 AU)
Nov 20 - Comet 36P/Whipple At Opposition (2.172 AU)
Nov 20 - Asteroid 166614 Zsazsa Closest Approach To Earth (1.626 AU)
Nov 20 - Asteroid 9357 Venezuela Closest Approach To Earth (1.709 AU)
Nov 20 - Plutino 455502 (2003 UZ413) At Opposition (43.377 AU)
Nov 21 - Comet 77P/Longmore At Opposition (3.626 AU)
Nov 21 - Comet 391P//Kowalski Closest Approach To Earth (3.876 AU)
Nov 21 - Asteroid 10221 Kubrick Closest Approach To Earth (1.415 AU)
Nov 21 - Asteroid 274300 UNESCO Closest Approach To Earth (1.622 AU)
Nov 21 - Asteroid 2191 Uppsala Closest Approach To Earth (1.778 AU)
Nov 21 - Asteroid 13010 Germantitov Closest Approach To Earth (1.879 AU)
Nov 21 - Neptune Trojan 2015 VW165 At Opposition (28.912 AU)
Nov 21 - Kuiper Belt Object 523645 (2010 VK201) At Opposition (47.169 AU)
Nov 21 - Kuiper Belt Object 90377 Sedna At Opposition (83.418 AU)
Nov 21 - Griffith Observatory Public Star Party, Los Angeles, California
Nov 21 - 85th Anniversary (1935), Great Meteor Shower of 1935
Nov 21 - 95th Anniversary (1925), Great Meteor Shower of 1925
Nov 22 - Comet 68P/Klemola Closest Approach To Earth (2.854 AU)
Nov 22 - Asteroid 163800 Richardnorton Closest Approach To Earth (1.143 AU)
Nov 22 - Asteroid 96193 Edmonton Closest Approach To Earth (1.238 AU)
Nov 22 - Asteroid 3131 Mason-Dixon Closest Approach To Earth (2.017 AU)
Nov 22 - Neptune Trojan 2015 VV165 At Opposition (27.349 AU)
Nov 22 - Owen Garriott's 90th Birthday (1930)
Nov 22 - Jerrie Mock's 95th Birthday (1925)
Nov 22 - Karl Bruhns' 190th Birthday (1830)
Nov 23 - Asteroid 16 Psyche Occults UCAC4 542-012875 (12.3 Magnitude Star)
Nov 23 - Aten Asteroid 2017 WJ16 Near-Earth Flyby (0.013 AU)
Nov 23 - Asteroid 6701 Warhol Closest Approach To Earth (1.507 AU)
Nov 23 - Apollo Asteroid 3360 Syrinx Closest Approach To Earth (1.612 AU)
Nov 23 - Amor Asteroid 5863 Tara Closest Approach To Earth (2.013 AU)
Nov 23 - Plutino 84719 (2002 VR128) At Opposition (39.361 AU)
Nov 23 - 60th Anniversary (1960), Tiros 2 Launch (Weather Satellite)
Nov 23 - Vladislav Volkov's 85th Birthday (1935)
Nov 23-27 -[Feb 24] Workshop: Life Around a Radio Star, Leiden, The Netherlands
Nov 23-27 -[Feb 24] Conference: Inward Bound - Bulges from High Redshifts to the Milky Way, Garching, Germany
Nov 23-27 -[Feb 24] Workshop: Space Science for Societal Challenges, Leiden, The Netherlands
Nov 23-27 - 7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2020), Bergen, Norway
Nov 24 - InSight, End of Primary Mission
Nov 24 - Comet 313P/Gibbs At Opposition (1.704 AU)
Nov 24 - Comet 111P/Helin-Roman-Crockett Closest Appproach To Earth (2.767 AU)
Nov 24 - Comet 111P/Helin-Roman-Crockett At Opposition (2.767 AU)
Nov 24 - Asteroid 25399 Vonnegut Closest Approach To Earth (1.727 AU)
Nov 24 - Neptune Trojan 527604 (2007 VL305) At Opposition (27.323 AU)
Nov 24 - Neptune Trojan 2015 VX165 At Opposition (31.323 AU)
Nov 24 - John Brashear's 180th Birthday (1840)
Nov 25 - GLONASS-M 761 Soyuz-2.1b/Fregat-M Launch
Nov 25 - Comet P/2012 SB6 (Lemmon) Closest Approach To Earth (1.596 AU)
Nov 25 - Comet 391P//Kowalski At Opposition (3.879 AU)
Nov 25 - Asteroid 1241 Dysona Closest Approach To Earth (2.548 AU)
Nov 25 - 90th Anniversary (1930), Karoonda Meteorite Fall in Australia
Nov 25 - 105th Anniversary (1915), Albert Einstein Publishes General Theory of Relativity
Nov 25 - 170th Anniversary (1850), William Dawes' Discovery of Saturn's C Ring
Nov 26 - Comet 11P/Tempel-Swift-LINEAR Perihelion (1.389 AU)
Nov 26 - Comet 332P-C/Ikeya-Murakami Closest Approach To Earth (1.771 AU)
Nov 26 - Comet 332P-H/Ikeya-Murakami Closest Approach To Earth (1.773 AU)
Nov 26 - Comet 332P-A/Ikeya-Murakami Closest Approach To Earth (1.774 AU)
Nov 26 - Comet 332P-E/Ikeya-Murakami Closest Approach To Earth (1.781 AU)
Nov 26 - Apollo Asteroid 2018 RQ4 Near-Earth Flyby (0.021 AU)
Nov 26 - Amor Asteroid 3553 Mera Closest Approach To Earth (1.249 AU)
Nov 26 - Asteroid 4342 Freud Closest Approach To Earth (1.860 AU)
Nov 26 - 35th Anniversary (1985), STS-61-B Launch (Space Shuttle Atlantis)
Nov 26 - 55th Anniversary (1965), Asterix 1 Launch (France's 1st Satellite)
Nov 26 - Bertil Lindblad's 125th Birthday (1895)
Nov 26 - 410th Anniversary (1610), Nicolas-Claude Fabri de Peiresc's Discovery of the Orion Nebula
Nov 27 - Comet 332P-B/Ikeya-Murakami Closest Approach To Earth (1.750 AU)
Nov 27 - Comet 332P-D/Ikeya-Murakami Closest Approach To Earth (1.756 AU)
Nov 27 - Comet 332P-I/Ikeya-Murakami Closest Approach To Earth (1.756 AU)
Nov 27 - Comet P/2007 Q2 (Gilmore) Perihelion (1.865 AU)
Nov 27 - Asteroid 2421 Nininger Closest Approach To Earth (2.188 AU)
Nov 27 - Neptune Trojan 530930 (2011 WG157) At Opposition (29.762 AU)
Nov 27 - Bill Nye's 65th Birthday (1955)
Nov 27 - Walter Gale's 155th Birthday (1865)
Nov 28 - Comet 332P/Ikeya-Murakami Closest Approach To Earth (1.732 AU)
Nov 28 - Russell Hulse's 70th Birthday (1950)
Nov 28 - Nathaniel Bliss' 320th Birthday (1700)
Nov 29 - Aten Asteroid 153201 (2000 WO107) Near-Earth Flyby (0.029 AU)
Nov 29 - Atira Asteroid 2015 DR215 Closest Approach To Earth (0.530 AU)
Nov 29 - Amor Asteroid 2368 Beltrovata Closest Approach To Earth (1.089 AU)
Nov 29 - Asteroid 8657 Cedrus Closest Approach To Earth (1.721 AU)
Nov 29 - Asteroid 5249 Giza Closest Approach To Earth (2.321 AU)
Nov 29 -[Feb 23] Kuiper Belt Object 523759 (2014 WK509) At Opposition (51.229 AU)
Nov 29 - 20th Anniversary (2000), Discovery of Yamato 000593 Meteorite (Mars Meteorite)
Nov 30 - Nauka/ ERA Proton-M P4 Launch (International Space Station 03R)
Nov 30 - Penumbral Lunar Eclipse
Nov 30 - Asteroid 8283 Edinburgh Closest Approach To Earth (1.643 AU)
Nov 30 - Asteroid 1541 Estonia Closest Approach To Earth (1.891 AU)
Nov 30 - Kuiper Belt Object 386723 (2009 YE7) At Opposition (49.803 AU)
Nov 30 - 20th Anniversary (2000), STS-97 Launch (Space Shuttle Endeavour, International Space Station)
Nov 30-Dec 04 - Workshop: The Binary Effect on Stellar Wind (BINAGB2020), La Serena, Chile
Nov 30-Dec 04 - Conference: Linking the Galactic and Extragalactic - Stellar Dynamics and Stellar Populations of the Milky Way and its Siblings, Wollongong, Australia
Nov 30-Dec 04 - Workshop: Modeling, Observing, and Understanding Flows and Magnetic Fields in the Earth's Core and in the Sun, Cambridge, United Kingdom
Nov 30-Dec 11 -[Feb 19] Workshop: Frontiers of Quantum Simulation with Synthetic Systems, Natal, Brazil

December 2020

Dec ?? - Hayabusa 2, Return to Earth
Dec ?? - Progress MS-16 Soyuz-2.1a Launch (International Space Station 77P)
Dec ?? - Progress MS-17 Soyuz-2.1a Launch (International Space Station 78P)
Dec ?? - Exploration Mission 1/ Near-Earth Asteroid Scout/ Lunar Flashlight/ BioSentinel/ SkyFire/ Lunar IceCube/ CuSP/ Lunar Polar Hydrogen Mapper/ EQUULEUS/ OMOTENASHI/ ArgoMoon SLS Block 1 Launch
Dec ?? - Yenisey A2 Proton-M/Briz-M P4 Launch
Dec ?? - Gaganyaan 1 GSLV-III Launch
Dec ?? - Meteor-M N2-3/ Ionosfera-M 1-2 Soyuz-2.1b/Fregat-M Launch
Dec ?? - GOES-T Atlas 5 Launch
Dec ?? - 20th Anniversary (2000), Discovery of NWA 817 Meteorite (Mars Meteorite)
Dec 01 - Comet C/2019 N1 (ATLAS) Perihelion (1.705 AU)
Dec 01 - Asteroid 7169 Linda Closest Approach To Earth (1.302 AU)
Dec 01 - Asteroid 9133 d'Arrest Closest Approach To Earth (1.484 AU)
Dec 01 - Asteroid 278141 Tatooine Closest Approach To Earth (1.488 AU)
Dec 01 - Asteroid 232 Russia Closest Approach To Earth (1.868 AU)
Dec 01 - Asteroid 7367 Giotto Closest Approach To Earth (2.396 AU)
Dec 01 - Uranus Trojan 2011 QF99 At Opposition (17.008 AU)
Dec 01 - 60th Anniversary (1960), Sputnik 6 Launch (Carried Two Dogs: Pchelka & Mushka)
Dec 01 - Nicolas-Claude Fabri de Peiresc's 440th Birthday (1580)
Dec 01-04 - Conference: The Physics of Modularity, Santa Barbara, California
Dec 02 - Comet 252P/LINEAR Closest Approach To Earth (1.759 AU)
Dec 02 - Apollo Asteroid 2019 XH2 Near-Earth Flyby (0.041 AU)
Dec 02 - Binary Apollo Asteroid 69230 Hermes Closest Approach To Earth (0.262 AU)
Dec 02 - Aten Asteroid 2340 Hathor Closest Approach To Earth (1.044 AU)
Dec 02 - Atira Asteroid 2006 WE4 Closest Approach To Earth (1.182 AU)
Dec 02 - Asteroid 2187 La Silla Closest Approach To Earth (1.511 AU)
Dec 02 - Apollo Asteroid 1620 Geographos Closest Approach To Earth (1.787 AU)
Dec 02 - Kuiper Belt Object 2006 QH181 At Opposition (83.460 AU)
Dec 02 - Colorado Space Business Roundtable (CSBR) Space Business Roundup, Denver, Colorado
Dec 02 - 25th Anniversary (1995), SOHO Launch
Dec 02 - 30th Anniversary (1990), STS-35 Launch (Space Shuttle Columbia, Astro-1)
Dec 02-04 - 3rd South American Dark Matter Workshop (SADM3), Sao Paulo, Brazil
Dec 03 - Comet 332P-G/Ikeya-Murakami Closest Approach To Earth (1.634 AU)
Dec 03 - Aten Asteroid 2010 TK7 (Earth Trojan) Closest Approach To Earth (0.217 AU)
Dec 03 - Asteroid 16 Psyche Closest Approach To Earth (1.689 AU)
Dec 03 - Kuiper Belt Object 145453 (2005 RR43) At Opposition (38.930 AU)
Dec 03 - 5th Anniversary (2015), Hayabusa 2, Earth Flyby
Dec 03 - 20th Anniversary (2000), Discovery of Y000749 Meteorite (Mars Meteorite)
Dec 03 - 40th Anniversary (1980), Kaidun Meteorite Fall in Yemen
Dec 04 - Amor Asteroid 452307 Manawydan Closest Approach To Earth (0.654 AU)
Dec 04 - Asteroid 8749 Beatles Closest Approach To Earth (0.860 AU)
Dec 04 - Asteroid 15495 Bogie Closest Approach To Earth (1.391 AU)
Dec 04 - Asteroid 8734 Warner Closest Approach To Earth (1.780 AU)
Dec 04 - Centaur Object 2015 KJ153 At Opposition (8.221 AU)
Dec 04 - 55th Anniversary (1965), Gemini 7 Launch (Frank Borman & Jim Lovell)
Dec 04 - Roger Cayrel's 95th Birthday (1925)
Dec 05 - Comet P/2010 B2 (WISE) Perihelion (1.618 AU)
Dec 05 - Asteroid 2 Pallas Occults TYC 480-2100-1 (10.3 Magnitude Star)
Dec 05 - Asteroid 2001 Einstein Closest Approach To Earth (1.218 AU)
Dec 05 - Asteroid 2062 Aten Closest Approach To Earth (1.589 AU)
Dec 05 - Asteroid 132524 APL Closest Approach To Earth (1.903 AU)
Dec 06 - Hyperbolic Comet C/2019 K1 (ATLAS) At Opposition (2.911 AU)
Dec 06 - Comet 362P At Opposition (4.104 AU)
Dec 06 - Asteroid 3688 Navajo Closest Approach To Earth (1.702 AU)
Dec 06 - Asteroid 20403 Attenborough Closest Approach To Earth (1.733 AU)
Dec 06 - Kuiper Belt Object 2018 VG18 At Opposition (123.168 AU)
Dec 06 - Yoshio Nishina's 130th Birthday (1890)
Dec 07 - Moon Occults Asteroid 4 Vesta
Dec 07 - Comet P/2016 BA14 (PANSTARRS) Closest Approach To Earth (1.588 AU)
Dec 07 - Hyperbolic Object A/2020 A1 At Opposition (3.521 AU)
Dec 07 - Comet C/2018 L1 (PANSTARRS) At Opposition (3.762 AU)
Dec 07 - Comet 65P/Gunn At Opposition (3.771 AU)
Dec 07 - Asteroid 52246 Donaldjohanson Closest Approach To Earth (1.047 AU)
Dec 07 - Asteroid 12464 Manhattan Closest Approach To Earth (1.210 AU)
Dec 07 - Amor Asteroid 1036 Ganymed Closest Approach To Earth (1.607 AU)
Dec 07 - Kuiper Belt Object 229762 G!kun||'homdima At Opposition (40.641 AU)
Dec 07 -[Feb 19] Kuiper Belt Object 148780 Altjira At Opposition (45.058 AU)
Dec 07 - 25th Anniversary (1995), Galileo, Jupiter Orbit Insertion
Dec 07 - Gerard Kuiper's 115th Birthday (1905)
Dec 07 - 1835th Anniversary (185 AD), Chinese Emperor Lo-Yang Observes Supernova 185
Dec 07-11 -[Feb 24] American Geophysical Union (AGU) Fall Meeting, San Francisco, California
Dec 07-11 - Workshop: Five Years after HL Tau - A New Era in Planet Formation, Chile
Dec 07-11 - Conference: Eclipsing Exoplanets 2020, Viña del Mar, Chile
Dec 07-11 - NAVITEC 2020 Conference, Noordwijk, The Netherlands
Dec 07-12 - Conference: Supermassive Black Holes, Pucon, Chile
Dec 07-18 - Workshop: Gravity Meets QCD at the Southern Hemisphere, Natal, Brazil
Dec 08 - Comet 162P/Siding Spring Perihelion (1.289 AU)
Dec 08 - Comet 58P/Jackson-Neujmin Closest Approach To Earth (1.661 AU)
Dec 08 - Comet P/2019 M2 (ATLAS) At Opposition (3.293 AU)
Dec 08 - Aten Asteroid 2018 PK21 Near-Earth FLyby (0.031 AU)
Dec 08 - Asteroid 70713 Sethmacfarlane Closest Approach To Earth (1.377 AU)
Dec 08 - Amor Asteroid 1580 Betulia Closest Approach To Earth (1.912 AU)
Dec 08 - Asteroid 5441 Andymurray Closest Approach To Earth (2.320 AU)
Dec 08 - Centaur Object 54598 Bienor At Opposition (13.297 AU)
Dec 08 - 10th Anniversary (2010), IKAROS, Venus Flyby
Dec 08 - 30th Anniversary (1990), Galileo, 1st Earth Flyby
Dec 08 - 175th Anniversary (1845), Karl Hencke's Discovery of Asteroid 5 Astraea
Dec 09 - Comet P/2012 SB6 (Lemmon) At Opposition (1.629 AU)
Dec 09 - Asteroid 736 Harvard Closest Approach To Earth (1.265 AU)
Dec 09 - Asteroid 243 Ida Closest Approach To Earth (1.753 AU)
Dec 09 - Henry Giclas' 110th Birthday (1910)
Dec 09 - 215th Anniversary (1805), Comet Biela Near-Earth Flyby (14.2 Lunar Distance)
Dec 09-14 - IAU Symposium 367: Education and Heritage in the Era of Big Data in Astronomy, San Carlos de Bariloche, Argentina
Dec 10 - Comet 364P/PANSTARRS At Opposition (3.982 AU)
Dec 10 - Amor Asteroid 4487 Pocahontas Closest Approach To Earth (0.679 AU)
Dec 10 - Apollo Asteroid 14827 Hypnos Closest Approach To Earth (2.942 AU)
Dec 10 - Kuiper Belt Object 145451 (2005 RM43) At Opposition (36.530 AU)
Dec 10 - 70th Anniversary (1950), St. Louis Meteorite Fall (Hit Car in Missouri)
Dec 11 - Kuiper Belt Object 470443 (2007 XV50) At Opposition (45.997 AU)
Dec 12 - Moon Occults Venus
Dec 12 - Comet 220P/McNaught Perihelion (1.552 AU)
Dec 12 - Comet 100P/Hartley At Opposition (3.120 AU)
Dec 12 - Comet 200P/Larsen Closest Approach To Earth (3.204 AU)
Dec 12 - Asteroid 498 Tokio Occults HIP 58948 (3.8 Magnitude Star)
Dec 12 - Asteroid 248750 Asteroidday Closest Approach To Earth (1.536 AU)
Dec 12 - Asteroid 34901 Mauna Loa Closest Approach To Earth (1.605 AU)
Dec 12 - Asteroid 2169 Taiwan Closest Approach To Earth (1.667 AU)
Dec 12 - Asteroid 15402 Suzaku Closest Approach To Earth (1.739 AU)
Dec 12 - Asteroid 4535 Adamcarolla Closest Approach To Earth (2.217 AU)
Dec 12 - 50th Anniversary (1970), Explorer 42 Launch (1st X-Ray Satellite)
Dec 13 - Geminids Meteor Shower Peak
Dec 13 - Comet 133P/Elst-Pizarro Closest Approach To Earth (2.600 AU)
Dec 13 - Comet 68P/Klemola At Opposition (2.918 AU)
Dec 13 - Atira Asteroid 481817 (2008 UL90) Closest Approach To Earth (0.325 AU)
Dec 13 - Kuiper Belt Object 2004 XR190 At Opposition (56.041 AU)
Dec 14 - Total Solar Eclipse (Visible from Argentina)
Dec 14 - 30th Anniversary (1990), Creation of the Canadian Space Agency
Dec 14 - 120th Anniversary (1900), Max Planck Formulates Quantum Physics Hypothesis
Dec 14-18 - Dynamic Sun III: Special Total Solar Eclipse Meeting 2020, Villarrica, Chile
Dec 14-18 -[Feb 25] Workshop: A SHOT IN THE DARK - New Challenges in Cosmology, Leiden, The Netherlands
Dec 14-18 - 10th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (Pixel 2020), Santa Fe, New Mexico
Dec 15 - Comet P/2013 TL117 (Lemmon) Closest Approach To Earth (0.468 AU)
Dec 15 - Comet 197P/LINEAR Closest Approach To Earth (3.585 AU)
Dec 15 - Asteroid 203 Pompeja Closest Approach To Earth (1.623 AU)
Dec 15 - Asteroid 42998 Malinafrank Closest Approach To Earth (1.759 AU)
Dec 15 - Centaur Object 8405 Asbolus At Opposition (22.311 AU)
Dec 15 - 50th 45th Anniversary (1970), Venera 7, Venus Landing (USSR)
Dec 15 - 55th Anniversary (1965), Gemini 6 Launch (Walter Schirra & Thomas Stafford)
Dec 15 - 55th Anniversary (1965), 1st Manned Spacecraft Rendezvous (Gemini 6 & 7)
Dec 15 - Kin Endate's 60th Birthday (1960)
Dec 16 - Comet 141P/Machholz Perihelion (0.808 AU)
Dec 16 - Comet 141P-A/Machholz Perihelion (0.808 AU)
Dec 16 - Comet 133P/Elst-Pizarro At Opposition (2.601 AU)
Dec 16 - Asteroid 3623 Chaplin Closest Approach To Earth (1.865 AU)
Dec 16 - Amor Asteroid 2608 Seneca Closest Approach To Earth (1.939 AU)
Dec 16 - Plutino 84922 (2003 VS2) At Opposition (35.762 AU)
Dec 16 - Plutino 307463 (2002 VU130) At Opposition (38.568 AU)
Dec 16 - 55th Anniversary (1965), 1st Song Performed in Space (Gemini 6)
Dec 17 - Comet 249P/LINEAR At Opposition (1.516 AU)
Dec 17 - Asteroid 274860 Emilylakdawalla Closest Approach To Earth (1.968 AU)
Dec 17 - Asteroid 3780 Maury Closest Approach To Earth (1.966 AU)
Dec 17 - Asteroid 4134 Schutz Closest Approach To Earth (2.121 AU)
Dec 17 - Asteroid 2829 Bobhope Closest Approach To Earth (2.564 AU)
Dec 17 - 230th Anniversary (1790), Discovery of 24-Ton Aztec Sun Stone Calendar
Dec 18 - Comet 173P/Mueller At Opposition (3.504 AU)
Dec 18 - Asteroid 1430 Somalia Closest Approach To Earth (1.859 AU)
Dec 18 - Asteroid 1213 Algeria Closest Approach To Earth (1.963 AU)
Dec 19 - Comet 293P/Spacewatch Perihelion (2.120 AU)
Dec 19 - Comet 160P/LINEAR Closest Approach To Earth (2.558 AU)
Dec 19 - Comet P/2012 O2 (McNaught) At Opposition (3.429 AU)
Dec 19 - Apollo Asteroid 137052 Tjelvar Closest Approach To Earth (1.024 AU)
Dec 19 - Asteroid 4122 Ferrari Closest Approach To Earth (1.647 AU)
Dec 19 - Asteroid 2801 Huygens Closest Approach To Earth (1.876 AU)
Dec 19 - Kuiper Belt Object 19521 Chaos At Opposition (40.250 AU)
Dec 19 - Griffith Observatory Public Star Party, Los Angeles, California
Dec 19 - 60th Anniversary (1960), Mercury 1A Launch (Unmanned)
Dec 20 - Asteroid 4923 Clarke Closest Approach To Earth (1.542 AU)
Dec 20 - Asteroid 4221 Picasso Closest Approach To Earth (1.933 AU)
Dec 20 - Centaur Object 60558 Echeclus At Opposition (9.233 AU)
Dec 20 - 100th Anniversary (1920), 1st Stellar Diameter Measured (Betelgeuse) by Francis Pease
Dec 20 - 120th Anniversary (1900), Michel Giacobini's Discovery of Comet 21P/Giacobini-Zinner
Dec 21 - Winter Solstice, 10:02 UT
Dec 21 - Jupiter Passes 0.1 Degrees from Saturn
Dec 21 - Comet P/2013 G4 (PANSTARRS) At Opposition (3.171 AU)
Dec 21 - Comet 200P/Larsen At Opposition (3.216 AU)
Dec 21 - Comet 372P/McNaught Closest Approach To Earth (3.538 AU)
Dec 21 - Comet 73P-AD/Schwassmann-Wachmann At Opposition (4.238 AU)
Dec 21 - Comet 73P-E/Schwassmann-Wachmann At Opposition (4.241 AU)
Dec 21 - Comet 73P-L/Schwassmann-Wachmann At Opposition (4.255 AU)
Dec 21 - Apollo Asteroid 2017 XQ60 Near-Earth Flyby (0.032 AU)
Dec 21 - Asteroid 48472 Mossbauer Closest Approach To Earth (1.334 AU)
Dec 21 - Asteroid 42981 Jenniskens Closest Approach To Earth (1.841 AU)
Dec 21 - Asteroid 5362 Johnyoung Closest Approach To Earth (2.338 AU)
Dec 22 - Ursids Meteor Shower Peak
Dec 22 - Comet 173P/Mueller Closest Approach To Earth (3.502 AU)
Dec 22 - Comet P/2000 S4 (LINEAR-Spacewatch) At Opposition (3.552 AU)
Dec 22 - Apollo Asteroid 6489 Golevka Closest Approach To Earth (2.995 AU)
Dec 22 - Centaur Object 154783 (2004 PA44) At Opposition (21.523 AU)
Dec 22 - Plutino 15875 (1996 TP66) At Opposition (28.873 AU)
Dec 22 - 150th Anniversary (1870), 1st Observation of the Sun Flash Spectrum by Charles Augustus Young
Dec 23 - Comet P/2009 Q4 (Boattini) Closest Approach To Earth (0.377 AU)
Dec 23 - Comet 311P/PANSTARRS Closest Approach To Earth (0.980 AU)
Dec 23 - Comet 381P/LINEAR-Spacewatch At Opposition (3.558 AU)
Dec 23 - Comet 80P/Peters-Hartley At Opposition (4.171 AU)
Dec 23 - Comet 73P-N/Schwassmann-Wachmann At Opposition (4.207 AU)
Dec 23 - Comet P/2008 CL94 (Lemmon) At Opposition (4.490 AU)
Dec 23 - Asteroid 4 Vesta Occults TYC 0856-00747-1 (10.8 Magnitude Star)
Dec 23 -[Feb 24] Asteroid 298 Baptistina Closest Approach To Earth (1.151 AU)
Dec 23 - Asteroid 1631 Kopff Closest Approach To Earth (1.468 AU)
Dec 23 - Asteroid 8120 Kobe Closest Approach To Earth (1.520 AU)
Dec 23 - Asteroid 8553 Bradsmith Closest Approach To Earth (1.537 AU)
Dec 23 - Asteroid 9995 Alouette Closest Approach To Earth (1.622 AU)
Dec 23 - Asteroid 1022 Olympiada Closest Approach To Earth (2.237 AU)
Dec 24 - Comet P/2013 TL117 (Lemmon) Perihelion (1.122 AU)
Dec 24 - Comet 178P/Hug-Bell At Opposition (1.368 AU)
Dec 24 - Comet P/2008 CL94 (Lemmon) Closest Approach To Earth (4.490 AU)
Dec 24 - Aten Asteroid 2011 CL50 Near-Earth Flyby (0.003 AU)
Dec 24 - 55th Anniversary (1965), Barwell Meteorite Fall (Hit Car, Buildings in England)
Dec 24 - William Pickering's 110th Birthday (1910)
Dec 24 - Howard Hughes' 115th Birthday (1905)
Dec 24 - Anders Johan Lexell's 280th Birthday (1740)
Dec 25 - Comet 372P/McNaught At Opposition (3.541 AU)
Dec 25 - Comet 37P/Forbes At Opposition (4.207 AU)
Dec 25 - Aten Asteroid 501647 (2014 SD224) Near-Earth Flyby (0.020 AU)
Dec 25 - Asteroid 1855 Korolev Closest Approach To Earth (1.249 AU)
Dec 25 - Asteroid 3306 Byron Closest Approach To Earth (1.591 AU)
Dec 25 - Kuiper Belt Object 78799 (2002 XW93) At Opposition (44.911 AU)
Dec 26 - Comet 311P/PANSTARRS At Opposition (0.981 AU)
Dec 26 - Asteroid 101383 Karloff Closest Approach To Earth (1.409 AU)
Dec 26 - Asteroid 3530 Hammel Closest Approach To Earth (1.607 AU)
Dec 26 - Asteroid 10093 Diesel Closest Approach To Earth (1.666 AU)
Dec 26 - Mary Somerville's 240th Birthday (1780)
Dec 27 - Comet P/2009 Q4 (Boattini) Perihelion (1.306 AU)
Dec 27 - Aten Asteroid 2016 AF2 Near-Earth Flyby (0.019 AU)
Dec 27 - Aten Asteroid 2012 XE133 Near-Earth Flyby (0.030 AU)
Dec 27 - Asteroid 7434 Osaka Closest Approach To Earth (1.078 AU)
Dec 28 - Yamal-501 Proton-M/Briz-M Launch
Dec 28 - Amor Asteroid 164215 Doloreshill Closest Approach To Earth (1.755 AU)
Dec 28 - Asteroid 8250 Cornell Closest Approach To Earth (2.609 AU)
Dec 28 - Plutino 55638 (2002 VE95) At Opposition (29.475 AU)
Dec 28 - Plutino 2005 TV189 At Opposition (31.722 AU)
Dec 28 - 20th Anniversary (2000), Galileo, Ganymede 29 Flyby
Dec 29 - Comet P/2015 X6 (PANSTARRS) Closet Approach To Earth (1.321 AU)
Dec 29 - Comet 306P/LINEAR Closest Approach To Earth (2.351 AU
Dec 29 - Comet 73P-AP/Schwassmann-Wachmann At Opposition (4.234 AU)
Dec 29 - Apollo Asteroid 162173 Ryugu Near-Earth Flyby (0.061 AU)
Dec 29 - Asteroid 17023 Abbott Closest Approach To Earth (1.145 AU)
Dec 29 - Asteroid 10866 Peru Closest Approach To Earth (1.396 AU)
Dec 29 - Aten Asteroid 2014 BA3 Closest Approach To Earth (1.479 AU)
Dec 29 - Asteroid 130 Elektra (2 Moons) Closest Approach To Earth (1.938 AU)
Dec 29 - Apollo Asteroid 314082 Dryope Closest Approach To Earth (2.407 AU)
Dec 29 - Plutino 2002 XV93 At Opposition (37.404 AU)
Dec 30 - Comet C/2020 A2 (Iwamoto) At Opposition (3.795 AU)
Dec 30 - Comet 73P-AS/Schwassmann-Wachmann At Opposition (4.208 AU)
Dec 30 - Aten Asteroid 2012 UK171 Near-Earth Flyby (0.040 AU)
Dec 30 - Asteroid 52 Europa Closest Approach To Earth (1.782 AU)
Dec 30 - Asteroid 1069 Planckia Closest Approach To Earth (2.069 AU)
Dec 30 - Asteroid 12002 Suess Closest Approach To Earth (2.304 AU)
Dec 30 - 20th Anniversary (2000), Cassini, Jupiter Flyby
Dec 30 - 35th Anniversary (1985), Stephen Synnott's Discovery of Uranus Moon Puck
Dec 30 - 90th Anniversary (1930), 1st Photo Showing Earth's Curvature Taken By Capt Albert Stevens
Dec 31 - Comet 141P-D/Machholz Perihelion (0.807 AU)
Dec 31 - Comet 277P/LINEAR Perihelion (1.904 AU)
Dec 31 - Comet C/2019 Y4 (ATLAS) At Opposition (2.811 AU)
Dec 31 - Comet 383P/Christensen Closest Approach To Earth (2.922 AU)
Dec 31 - Comet 73P-BD/Schwassmann-Wachmann At Opposition (3.921 AU)
Dec 31 - Comet 73P-AL/Schwassmann-Wachmann At Opposition (4.138 AU)
Dec 31 - Asteroid 17656 Hayabusa Closest Approach To Earth (1.994 AU)
Dec 31 - Asteroid 16035 Sasandford Closest Approach To Earth (2.050 AU)
Dec 31 - Asteroid 391257 Wilwheaton Closest Approach To Earth (2.411 AU)

January 2021

Jan ?? -[Feb 25] CAPSTONE Electron Launch (Lunar Orbiter)
Jan ?? - Galileo FOC 23 & 24 Ariane 62 Launch
Jan ?? - 20th Anniversary (2001), Discovery of NWA 1669 Meteorite (Mars Meteorite)
Jan ?? - 20th Anniversary (2001), Discovery of NWA 1950 Meteorite (Mars Meteorite)
Jan 01 - Comet P/2015 X6 (PANSTARRS) At Opposition (1.323 AU)
Jan 01 - Comet 84P/Giclas Closest Approach To Earth (1.583 AU)
Jan 01 - Comet 73P-Q/Schwassmann-Wachmann At Opposition (4.077 AU)
Jan 01 - Asteroid 7231 Porco Closest Approach To Earth (2.303 AU)
Jan 01 - Asteroid 2404 Antarctica Closest Approach To Earth (2.520 AU)
Jan 01 - Jeff Alu's 55th Birthday (1966)
Jan 01 - Sergei Avdeyev's 65th Birthday (1956)
Jan 01 - 220th Anniversary (1801), Guiseppe Piazzi's Discovery of the First Asteroid (Ceres)
Jan 02 - Earth At Perihelion (0.983 AU From Sun)
Jan 02 - Comet 73P-AISchwassmann-Wachmann At Opposition (4.016 AU)
Jan 02 - Comet 73P-BS/Schwassmann-Wachmann At Opposition (4.059 AU)
Jan 02 - Asteroid 3784 Chopin Closest Approach To Earth (2.660 AU)
Jan 03 - Quadrantids Meteor Shower Peak
Jan 03 - Comet 73P-W/Schwassmann-Wachmann At Opposition (3.978` AU)
Jan 03 - Aten Asteroid 2019 QW2 Near-Earth Flyby (0.022 AU)
Jan 03 - Aten Asteroid 2003 AF23 Near-Earth Flyby (0.047 AU)
Jan 03 - Asteroid 386622 New Zealand Closest Approach To Earth (1.225 AU)
Jan 03 - Asteroid 2281 Biela Closest Approach To Earth (1.462 AU)
Jan 03 - Asteroid 2315 Czechoslovakia Closest Approach To Earth (1.874 AU)
Jan 03 - 35th Anniversary (1986), Stephen Synnott's Discovery of Uranus Moons Juliet & Portia
Jan 03 - William Morgan's 115th Birthday (1906)
Jan 03 - Grigory Neujmin's 135th Birthday (1886)
Jan 03 - 525th Anniversary (1496), Leonardo da Vinci Unsuccessfully Tests a Flying Machine
Jan 04 - Comet 160P/LINEAR At Opposition (2.598 AU)
Jan 04 - Comet 73P-AE/Schwassmann-Wachmann At Opposition (3.913 AU)
Jan 04 - Aten Asteroid 2012 BT1 Near-Earth Flyby (0.016 AU)
Jan 04 - Amor Asteroid 3552 Don Quixote Closest Approach To Earth (5.615 AU)
Jan 04 - Joel Metcalf's 155th Birthday (1866)
Jan 04 - 240th Anniversary (1781), Charles Messier's Discovery of M80 (Globular Cluster in Scorpio)
Jan 04-08 - 8th International Conference on High Energy Physics in the LHC Era, Valparaíso, Chii
Jan 05 - Comet 304P/Ory Closest Approach To Earth (1.142 AU)
Jan 05 - Comet 98P/Takamizawa Perihelion (1.663 AU)
Jan 05 - Comet 58P/Jackson-Neujmin At Opposition (1.759 AU)
Jan 05 - Comet 101P-B/Chernykh Closest Approach To Earth (2.654 AU)
Jan 05 - Comet 73P-AG/Schwassmann-Wachmann At Opposition (3.838 AU)
Jan 05 - Comet 73P-AR/Schwassmann-Wachmann At Opposition (3.843 AU)
Jan 05 - Comet 73P-AQ/Schwassmann-Wachmann At Opposition (3.845 AU)
Jan 05 - Comet 73P-BL/Schwassmann-Wachmann At Opposition (3.873 AU)
Jan 05 - Asteroid 6296 Cleveland Closest Approach To Earth (0.834 AU)
Jan 05 - Asteroid 75564 Audubon Closest Approach To Earth (1.174 AU)
Jan 05 - Apollo Asteroid 12711 Tukmit Closest Approach To Earth (1.304 AU)
Jan 05 - Asteroid 13586 Copenhagen Closest Approach To Earth (2.245 AU)
Jan 05 - Kuiper Belt Object 2014 WP509 At Opposition (41.786 AU)
Jan 05-08 - Conference: Is There a Common Thread to Layering in Atmospheres, Oceans and Plasmas?, Santa Barbara, California
Jan 06 - Comet 325P/Yang-Gao At Opposition (2.921 AU)
Jan 06 - Comet 73P-AC/Schwassmann-Wachmann At Opposition (3.799 AU)
Jan 06 - Comet 73P-P/Schwassmann-Wachmann At Opposition (3.820 AU)
Jan 06 - Apollo Asteroid 2018 KP1 Near-Earth Flyby (0.021 AU)
Jan 06 - Apollo Asteroid 332446 (2008 AF4) Near-Earth Flyby (0.025 AU)
Jan 06 - Apollo Asteroid 2016 CO247 Near-Earth Flyby (0.049 AU)
Jan 06 - Asteroid 3130 Hillary Closest Approach To Earth (1.622 AU)
Jan 06 - Asteroid 6546 Kaye Closest Approach To Earth (2.174 AU)
Jan 06 - Asteroid 1388 Aphrodite Closest Approach To Earth (2.297 AU)
Jan 06 - Amor Asteroid 8709 Kadlu Closest Approach To Earth (2.735 AU)
Jan 06 - 170th Anniversary (1851), Leon Foucault's Pendulum Experiment Demonstrates Earth's Rotation
Jan 07 - Comet 390P/Gibbs Closest Approach To Earth (2.428 AU)
Jan 07 - Comet 73P-AH/Schwassmann-Wachmann At Opposition (3.727 AU)
Jan 07 - Comet 73P-AN/Schwassmann-Wachmann At Opposition (3.743 AU)
Jan 07 - Comet 73P-X/Schwassmann-Wachmann At Opposition (3.745 AU)
Jan 07 -[Feb 21] Asteroid 6186 Zenon (2 Moons) Closest Approach To Earth (1.182 AU)
Jan 07 - 25th Anniversary (1996), Tsukuba Meteorite Fall (Hit Car Repair Shop in Japan)
Jan 07 - Talgat Musabayev's 70th Birthday (1951)
Jan 08 - Comet 101P/Chernykh Closest Approach To Earth (2.767 AU)
Jan 08 - Comet 71P/Clark At Opposition (3.471 AU)
Jan 08 - Comet 73P-M/Schwassmann-Wachmann At Opposition (3.671 AU)
Jan 08 - Comet 73P-R/Schwassmann-Wachmann At Opposition (3.685 AU)
Jan 08 - Comet 73P-Z/Schwassmann-Wachmann At Opposition (3.699 AU)
Jan 08 - Comet 73P-AO/Schwassmann-Wachmann At Opposition (3.700 AU)
Jan 08 - Asteroid 79896 Billhaley Closest Approach To Earth (1.436 AU)
Jan 08 - Asteroid 17024 Costello Closest Approach To Earth (1.613 AU)
Jan 08 - Asteroid 3494 Purple Mountain Closest Approach To Earth (1.659 AU)
Jan 08 - Asteroid 4864 Nimoy Closest Approach To Earth (1.753 AU)
Jan 08 - Asteroid 3866 Langley Closest Approach To Earth (2.413 AU)
Jan 08 - Walther Bothe's 130th Birthday (1891)
Jan 09 - Mercury Passes 1.7 Degrees From Saturn
Jan 09 - Comet 283P/Spacewatch At Opposition (1.881 AU)
Jan 09 - Comet 73P-AV/Schwassmann-Wachmann At Opposition (3.616 AU)
Jan 09 - Comet 73P-C/Schwassmann-Wachmann At Opposition (3.624 AU)
Jan 09 - Comet 73P-G/Schwassmann-Wachmann At Opposition (3.624 AU)
Jan 09 - Comet 73P/Schwassmann-Wachmann At Opposition (3.625 AU)
Jan 09 - Comet 73P-BT/Schwassmann-Wachmann At Opposition (3.626 AU)
Jan 09 - Comet 73P-K/Schwassmann-Wachmann At Opposition (3.633 AU)
Jan 09 - Comet 73P-B/Schwassmann-Wachmann At Opposition (3.637 AU)
Jan 09 - Comet 73P-H/Schwassmann-Wachmann At Opposition (3.638 AU)
Jan 09 - Apollo Asteroid 2019 NU13 Near-Earth Flyby (0.038 AU)
Jan 09 - 35th Anniversary (1986), Stephen Synnott's Discovery of Uranus Moon Cressida
Jan 09 - Steve Squyres' 65th Birthday (1956)
Jan 10 - Comet 73P-BQ/Schwassmann-Wachmann At Opposition (3.532 AU)
Jan 10 - Comet 73P-AU/Schwassmann-Wachmann At Opposition (3.571 AU)
Jan 10 - Comet 73P-AK/Schwassmann-Wachmann At Opposition (3.575 AU)
Jan 10 - Asteroid 1831 Nicholson Closest Approach To Earth (1.491 AU)
Jan 10 - Asteroid 3850 Peltier Closest Approach To Earth (1.507 AU)
Jan 10 - Asteroid 4372 Quincy Closest Approach To Earth (1.855 AU)
Jan 10 - Asteroid 100007 Peters Closest Approach To Earth (2.190 AU)
Jan 10 - 75th Anniversary (1946), Radar Astronomy Born When Radar Bounced Off Moon by the US Army (Project Diana)
Jan 10 - Robert Wilson's 85th Birthday (1936)
Jan 11 - Mercury Passes 1.5 Degrees From Jupiter
Jan 11 - Comet 178P/Hug-Bell At Opposition (1.409 AU)
Jan 11 - Comet P/2012 G1 (PANSTARRS) Perihelion (2.571 AU)
Jan 11 - Comet 73P-BO/Schwassmann-Wachmann At Opposition (3.471 AU)
Jan 11 - Comet 73P-AX/Schwassmann-Wachmann At Opposition (3.501 AU)
Jan 11 - Comet 73P-N/Schwassmann-Wachmann At Opposition (3.518 AU)
Jan 11 - Amor Asteroid 2013 YS2 Near-Earth Flyby (0.047 AU)
Jan 11 - Asteroid 21459 Chrisrussell Closest Approach To Earth (1.586 AU)
Jan 11 - Asteroid 1941 Wild Closest Approach To Earth (3.147 AU)
Jan 11 - Asteroid 132904 Notkin Closest Approach To Earth (3.407 AU)
Jan 11 - 25th Anniversary (1996), STS-72 Launch (Space Shuttle Endeavour)
Jan 12 - Comet 73P-AB/Schwassmann-Wachmann At Opposition (3.411 AU)
Jan 12 - Comet 73P-J/Schwassmann-Wachmann At Opposition (3.438 AU)
Jan 12 - Comet 73P-BK/Schwassmann-Wachmann At Opposition (3.445 AU)
Jan 12 - Comet 73P-BN/Schwassmann-Wachmann At Opposition (3.462 AU)
Jan 12 - Asteroid 16857 Goodall Closest Approach To Earth (1.077 AU)
Jan 12 - Apollo Asteroid 136617 (1994 CC) (2 Moons) Closest Approach To Earth (1.338 AU)
Jan 12 - Asteroid 400796 Douglass Closest Approach To Earth (2.284 AU)
Jan 12 - Kuiper Belt Object 230965 (2004 XA192) At Opposition (34.595 AU)
Jan 12 - 35th Anniversary (1986), STS-61-C Launch (Space Shuttle Columbia, Congressman Bill Nelson)
Jan 13 - Comet 73P-BJ/Schwassmann-Wachmann At Opposition (3.397 AU)
Jan 13 - Comet P/2018 L5 (Leonard) At Opposition (3.799 AU)
Jan 13 - Hyperbolic Object A/2019 T1 Perihelion (4.283 AU)
Jan 13 - 35th Anniversary (1986), Stephen Synnott's Discovery of Uranus Moons Desdemona, Rosalind & Belinda
Jan 14 - Landsat 9 CatSat/ CuPID/ CUTE Atlas 5 Launch
Jan 14 - Comet 73P-AM/Schwassmann-Wachmann At Opposition (3.366 AU)
Jan 14 - Comet 237P/LINEAR At Opposition (3.707 AU)
Jan 14 - Asteroid 7096 Napier Closest Approach To Earth (1.076 AU)
Jan 14 - Asteroid 28600 Georgelucas Closest Approach To Earth (1.651 AU)
Jan 14 - Asteroid 274301 Wikipedia Closest Approach To Earth (1.705 AU)
Jan 14 - Asteroid 1278 Kenya Closest Approach To Earth (1.923 AU)
Jan 14 - Francis Pease's 140th Birthday (1881)
Jan 15 - Comet 85P/Boethin Closest Approach To Earth (1.577 AU)
Jan 15 - Comet 306P/LINEAR At Opposition (2.393 AU)
Jan 15 - Comet 73P-U/Schwassmann-Wachmann At Opposition (3.223 AU)
Jan 15 - Aten Asteroid 2017 QW1 Near-Earth Flyby (0.045 AU)
Jan 15 - Apollo Asteroid 3838 Epona Closest Approach To Earth (1.659 AU)
Jan 15 - Asteroid 30444 Shemp Closest Approach To Earth (2.060 AU)
Jan 15 - Asteroid 5760 Mittlefehldt Closest Approach To Earth (2.267 AU)
Jan 15 - 20th Anniversary (2001), Stardust, Earth Flyby
Jan 15 - 45th Anniversary (1976), Helios 2 Launch (Solar Orbiter)
Jan 16 - Comet 383P/Christensen At Opposition (2.959 AU)
Jan 16 - Asteroid 1284 Latvia Closest Approach To Earth (1.394 AU)
Jan 17 - Parker Solar Probe, 7th Perihelion
Jan 17 - Comet 320P/McNaught Perihelion (0.972 AU)
Jan 17 - Comet 320P/McNaught Closest Approach To Earth (1.956 AU)
Jan 17 - Apollo Asteroid 65717 (1993 BX3) Near-Earth Flyby (0.047 AU)
Jan 17 - Asteroid 6442 Salzburg Closest Approach To Earth (1.802 AU)
Jan 17 - Asteroid 5816 Potsdam Closest Approach To Earth (1.950 AU)
Jan 17 - Asteroid 247553 Berndpauli Closest Approach To Earth (3.204 AU)
Jan 17 - 235th Anniversary (1786), Pierre Mechain's Discovery of Comet 2P/Encke
Jan 18 - Comet 323P/SOHO Perihelion (0.039 AU)
Jan 18 - Comet 9P/Tempel At Opposition (2.487 AU)
Jan 18 - Amor Asteroid 21088 Chelyabinsk Closest Approach To Earth (1.081 AU)
Jan 18 - Asteroid 149 Medusa Closest Approach To Earth (1.132 AU)
Jan 18 - Asteroid 8925 Boattini Closest Approach To Earth (1.437 AU)
Jan 18 - 105th Anniversary (1916), Baxter Meteorite Fall (Hit House in Missouri)
Jan 19 - Comet 141P-A/Machholz Closest Approach To Earth (0.533 AU)
Jan 19 - Comet 141P/Machholz Closest Approach To Earth (0.533 AU)
Jan 19 - Comet C/2019 B3 (PANSTARRS) Perihelion (6.826 AU)
Jan 19 - Asteroid 9249 Yen Closest Approach To Earth (1.466 AU)
Jan 19 - Asteroid 3018 Godiva Closest Approach To Earth (1.831 AU)
Jan 19 - Asteroid 3526 Jeffbell Closest Approach To Earth (2.075 AU)
Jan 19 - Asteroid 27596 Maldives Closest Approach To Earth (2.752 AU)
Jan 19 - Centaur Object 52975 Cyllarus At Opposition (27.806 AU)
Jan 19 - 15th Anniversary (2006), New Horizons Launch (Pluto Mission)
Jan 19 - 20th Anniversary (2001), Mars Odyssey Cleanroom Leak
Jan 19 - Jacobus Kapteyn's 170th Birthday (1851)
Jan 20 - Comet 84P/Giclas At Opposition (1.632 AU)
Jan 20 - Comet 73P-AT/Schwassmann-Wachmann At Opposition (2.947 AU)
Jan 20 - Comet P/2000 R2 (LINEAR) At Opposition (3.313 AU)
Jan 20 - Asteroid 341 California Closest Approach To Earth (1.609 AU)
Jan 20 - Asteroid 10799 Yucatan Closest Approach To Earth (1.668 AU)
Jan 20 - Asteroid 4017 Disneya Closest Approach To Earth (1.776 AU)
Jan 20 - Asteroid 78756 Sloan Closest Approach To Earth (2.134 AU)
Jan 20 - 35th Anniversary (1986), Rich Terrile's Discovery of Uranus Moons Cordelia & Ophelia
Jan 20 - Louis Boyer's 120th Birthday (1901)
Jan 21 - Mars Passes 1.7 Degrees From Uranus
Jan 21 - Comet P/2013 A2 (Scotti) At Opposition (1.217 AU)
Jan 21 - Atira Asteroid 2017 YH Closest Approach To Earth (0.119 AU)
Jan 21 - Asteroid 16543 Rosetta Closest Approach To Earth (1.198 AU)
Jan 21 - Asteroid 472 Roma Closest Approach To Earth (1.422 AU)
Jan 21 - Asteroid 4099 Wiggins Closest Approach To Earth (1.442 AU)
Jan 21 - Asteroid 16260 Sputnik Closest Approach To Earth (1.555 AU)
Jan 21 - Amor Asteroid 8034 Akka Closest Approach To Earth (1.596 AU)
Jan 21 - Asteroid 4104 Alu Closest Approach To Earth (1.875 AU)
Jan 21 - Asteroid 4047 Chang'E Closest Approach To Earth (2.017 AU)
Jan 22 - Comet P/2007 B1 (Christensen) At Opposition (1.474 AU)
Jan 22 - Comet 101P-B/Chernykh At Opposition (2.697 AU)
Jan 22 - Comet 325P/Yang-Gao Closest Approach To Earth (2.883 AU)
Jan 22 - Comet 89P/Russell At Opposition (4.268 AU)
Jan 22 - Aten Asteroid 2018 BX Near-Earth Flyby (0.023 AU)
Jan 22 - Asteroid 25930 Spielberg Closest Approach To Earth (1.696 AU)
Jan 22 - Asteroid 128036 Rafaelnadal Closest Approach To Earth (1.796 AU)
Jan 23 - Comet P/2007 B1 (Christensen) Closest Approach To Earth (1.474 AU)
Jan 23 - Comet 102P/Shoemaker Perihelion (2.070 AU)
Jan 23 - Comet 297P/Beshore Perihelion (2.343 AU)
Jan 23 - Comet 73P-BF/Schwassmann-Wachmann At Opposition (2.789 AU)
Jan 23 - Comet P/2012 O1 (McNaught) At Opposition (3.881 AU)
Jan 23 - Asteroid 3590 Holst Closest Approach To Earth (1.084 AU)
Jan 23 - Asteroid 2675 Tolkien Closest Approach To Earth (1.317 AU)
Jan 23 - Asteroid 8084 Dallas Closest Approach To Earth (1.472 AU)
Jan 23 - Asteroid 2224 Tucson Closest Approach To Earth (2.026 AU)
Jan 23 - Asteroid 6982 Cesarchavez Closest Approach To Earth (2.116 AU)
Jan 23 - 35th Anniversary (1986), Brad Smith's Discovery of Uranus Moon Bianca
Jan 23 - Glenn Research Center's 80th Birthday (1941)
Jan 23 - Ed Stone's 85th Birthday (1936)
Jan 23 - Nikolay Umov's 175th Birthday (1846)
Jan 24 - Mercury At Its Greatest Eastern Elongation (19 Degrees)
Jan 24 - Comet P/2013 A2 (Scotti) Closest Approach To Earth (1.216 AU)
Jan 24 - Comet 73P-BR/Schwassmann-Wachmann At Opposition (2.729 AU)
Jan 24 - Aten Asteroid 341843 (2008 EV5) Closest Approach To Earth (1.129 AU)
Jan 24 - Asteroid 24663 Philae Closest Approach To Earth (1.441 AU)
Jan 24 - Asteroid 8000 Isaac Newton Closest Approach To Earth (2.344 AU)
Jan 24 - Kuiper Belt Object 482824 (2013 XC26) At Opposition (35.850 AU)
Jan 24 - Kuiper Belt Object 20000 Varuna At Opposition (43.039 AU)
Jan 24 - 35th Anniversary (1986), Voyager 2, Uranus Flyby
Jan 24 - Jim Young's 80th Birthday (1941)
Jan 25 - Comet P/2007 B1 (Christensen) Perihelion (2.439 AU)
Jan 25 - Comet 73P-BD/Schwassmann-Wachmann At Opposition (2.628 AU)
Jan 25 - Comet 73P-BG/Schwassmann-Wachmann At Opposition (2.667 AU)
Jan 25 - Comet 101P/Chernykh At Opposition (2.809 AU)
Jan 25 - Comet P/2019 S3 (PANSTARRS) Closest Approach To Earth (2.915 AU)
Jan 25 - Apollo Asteroid 2018 BA3 Near-Earth Flyby (0.004 AU)
Jan 25 - Aten Asteroid 468727 (2010 JE87) Near-Earth Flyby (0.040 AU)
Jan 25 - Amor Asteroid 16912 Rhiannon Closest Approach To Earth (0.790 AU)
Jan 25 - Apollo Asteroid 25143 Itokawa Closest Approach To Earth (1.197 AU)
Jan 25 - Asteroid 6524 Baalke Closest Approach To Earth (1.310 AU)
Jan 25 - Asteroid 19367 Pink Floyd Closest Approach To Earth (1.415 AU)
Jan 25 - Asteriod 5000 IAU Closest Approach To Earth (1.603 AU)
Jan 25 - Asteroid 10189 Normanrockwell Closest Approach To Earth (1.754 AU)
Jan 25 - Asteroid 73769 Delphi Closest Approach To Earth (3.480 AU)
Jan 25 - Joseph Lagrange's 285th Birthday (1736)
Jan 25-28 - Conference: Multiwavelength Probes of Galactic Atmospheres, Santa Barbara, California
Jan 26 - Comet 283P/Spacewatch Closest Approach To Earth (1.843 AU)
Jan 26 - Comet 73P-V/Schwassmann-Wachmann At Opposition (2.709 AU)
Jan 26 - Comet 48P/Johnson At Opposition (3.787 AU)
Jan 26 - Atira Asteroid 2010 XB11 Closest Approach To Earth (0.686 AU)
Jan 27 - Comet 1P/Halley At Opposition (34.077 AU)
Jan 27 - Asteroid 96192 Calgary Closest Approach To Earth (1.650 AU)
Jan 27 - Asteroid 3948 Bohr Closest Approach To Earth (1.718 AU)
Jan 27 - Asteroid 2157 Ashbrook Closest Approach To Earth (1.991 AU)
Jan 27 - Asteroid 2127 Tanya Closest Approach To Earth (2.332 AU)
Jan 27 - Plutino 208996 (2003 AZ84) At Opposition (43.262 AU)
Jan 28 - Comet 73P-BB/Schwassmann-Wachmann At Opposition (2.490 AU)
Jan 28 - Asteroid 4808 Ballaero Closest Approach To Earth (1.371 AU)
Jan 28 - Asteroid 21 Lutetia Closest Approach To Earth (1.812 AU)
Jan 28 - Asteroid 5102 Benfranklin Closest Approach To Earth (2.024 AU)
Jan 28 - 35th Anniversary (1986), Space Shuttle Challenger Accident
Jan 28 - Johannes Hevelius' 410th Birthday (1611)
Jan 29 - Comet P/2005 XA54 (LONEOS-Hill) Perihelion (1.754 AU)
Jan 29 - Comet 337P/WISE At Opposition (2.923 AU)
Jan 29 - Asteroid 25137 Seansolomon Closest Approach To Earth (1.767 AU)
Jan 29 - Abdus Salam's 95th Birthday (1926)
Jan 29 - Josef de Mendoza y Rios' 260th Birthday (1761)
Jan 30 - Comet 73P-BE/Schwassmann-Wachmann At Opposition (2.378 AU)
Jan 30 - Comet 73P-BM/Schwassmann-Wachmann At Opposition (2.384 AU)
Jan 30 - Comet 73P-BI/Schwassmann-Wachmann At Opposition (2.386 AU)
Jan 30 - Comet 73P-BP/Schwassmann-Wachmann At Opposition (2.386 AU)
Jan 30 - Comet 73P-BH/Schwassmann-Wachmann At Opposition (2.387 AU)
Jan 30 - Comet 73P-BA/Schwassmann-Wachmann At Opposition (2.406 AU)
Jan 30 - Comet 390P/Gibbs At Opposition (2.506 AU)
Jan 30 - Asteroid 2511 Patterson Closest Approach To Earth (1.514 AU)
Jan 30 - Asteroid 9963 Sandage Closest Approach To Earth (1.779 AU)
Jan 30 - Asteroid 90388 Philchristensen Closest Approach To Earth (2.014 AU)
Jan 30 - 25th Anniversary (1996), Yuji Hyakutake's Discovery of the Great Comet of 1996
Jan 30 - Gregory Benford's 80th Birthday (1941)
Jan 31 - Comet P/2017 R1 (PANSTARRS) At Opposition (3.935 AU)
Jan 31 - Uranus Trojan 2014 YX49 At Opposition (19.801 AU)
Jan 31 - 50th Anniversary (1971), Apollo 14 Launch (3rd Manned Moon Landing)
Jan 31 - 55th Anniversary (1966), Luna 9 Launch (USSR Moon Lander)
Jan 31 - 60th Anniversary (1961), Mercury-Redstone 2 Launch (Ham The Chimpanzee)

February 2021

Feb ?? - GPS 3A-6 Falcon 9 Launch
Feb ?? - 45th Anniversary (1976), Discovery of the Old Woman Meteorite in California
Feb 01 - Comet 293P/Spacewatch Closest Approach To Earth (1.180 AU)
Feb 01 - Comet 9P/Tempel Closest Approach To Earth (2.456 AU)
Feb 01 - Comet 261P/Larson At Opposition (3.062 AU)
Feb 01 - Aten Asteroid 2016 CL136 Near-Earth Flyby (0.035 AU)
Feb 01 - Asteroid 11246 Orvillewright Closest Approach To Earth (1.655 AU)
Feb 01 - Geoff Notkin's 60th Birthday (1961)
Feb 01 - 65th Anniversary (1956), Establishment of the Army Ballistic Missile Agency (ABMA)
Feb 02 - Comet 304P/Ory At Opposition (1.236 AU)
Feb 02 - Comet 141P-D/Machholz Closest Approach To Earth (0.775 AU)
Feb 02 - Asteroid 9387 Tweeddledee Closest Approach To Earth (0.995 AU)
Feb 02 - Asteroid 19155 Lifeson Closest Approach To Earth (1.875 AU)
Feb 02 - Amor Asteroid 5620 Jasonwheeler Closest Approach To Earth (1.911 AU)
Feb 02 - Asteroid 10 Hygiea Closest Approach To Earth (2.220 AU)
Feb 02 - Ernst Zinner's 135th Birthday (1886)
Feb 03 - Comet 130P/McNaught-Hughes At Opposition (3.963 AU)
Feb 03 - Atira Asteroid 1998 DK36 Closest Approach To Earth (0.181 AU)
Feb 03 - Asteroid 10050 Rayman Closest Approach To Earth (2.306 AU)
Feb 03 - Asteroid 3768 Monroe Closest Approach To Earth (2.406 AU)
Feb 03 - 55th Anniversary (1966), Luna 9 Landing on the Moon (1st Moon Landing)
Feb 04 - Comet 73P-AT/Schwassmann-Wachmann Closest Approach To Earth (2.912 AU)
Feb 04 - Asteroid 9885 Linux Closest Approach To Earth (1.259 AU)
Feb 04 - Asteroid 4115 Peternorton Closest Approach To Earth (1.916 AU)
Feb 04 - Asteroid 35352 Texas Closest Approach To Earth (1.916 AU)
Feb 04 - Asteroid 416 Vaticana Closest Approach To Earth (2.102 AU)
Feb 04 - Clyde Tombaugh's 115th Birthday (1906)
Feb 05 - Comet 73P-AA/Schwassmann-Wachmann At Opposition (2.108 AU)
Feb 05 - Comet P/2019 S3 (PANSTARRS) At Opposition (2.933 AU)
Feb 05 - Aten Asteroid 2018 PN22 Near-Earth Flyby (0.033 AU)
Feb 05 - Apollo Asteroid 2018 CH2 Near-Earth Flyby (0.037 AU)
Feb 05 - Apollo Asteroid 29075 (1950 DA) Closest Approach To Earth (0.494 AU)
Feb 05 - Asteroid 2045 Peking Closest Approach To Earth (1.363 AU)
Feb 05 - Atira Asteroid 459883 (2014 JX25) Closest Approach To Earth (2.181 AU)
Feb 05 - Amor Asteroid 18106 Blume Closest Approach To Earth (2.459 AU)
Feb 05 - Asteroid 7749 Jackschmitt Closest Approach To Earth (2.675 AU)
Feb 06 - Comet 293P/Spacewatch At Opposition (1.183 AU)
Feb 06 - Asteroid 26732 Damianpeach Closest Approach To Earth (1.531 AU)
Feb 06 - Asteroid 881 Athene Closest Approach To Earth (2.184 AU)
Feb 06 - 30th Anniversary (1991), Salyut-7 Burnup In Earth's Atmosphere (Soviet Union Space Station)
Feb 06 - 50th Anniversary (1971), Alan Shepard's Golf Shot on the Moon (Apollo 14)
Feb 06 - Yuri Onufrienko's 60th Birthday (1961)
Feb 06 - Ronald Reagan's 110th Birthday (1911)
Feb 07 - Mars Spring Equinox
Feb 07 - Apollo Asteroid 2018 RB Near-Earth Flyby (0.047 AU)
Feb 07 - Asteroid 49272 Bryce Canyon Closest Approach To Earth (1.455 AU)
Feb 07 - 20th Anniversary (2001), STS-98 Launch (Space Shuttle Atlantis, International Space Station)
Feb 07 - Konstantin Feoktistov's 95th Birthday (1926)
Feb 08 - Comet 323P/SOHO Closest Approach To Earth (0.443 AU)
Feb 08 - Comet C/2019 N1 (ATLAS) Closest Approach To Earth (1.913 AU)
Feb 08 - Comet 73P-BF/Schwassmann-Wachmann Closest Approach To Earth (2.749 AU)
Feb 08 - Comet 300P/Catalina At Opposition (3.583 AU)
Feb 08 - Asteroid 6336 Dodo Closest Approach To Earth (1.595 AU)
Feb 08 - Asteroid 115561 Frankherbert Closest Approach To Earth (1.771 AU)
Feb 08 -[Feb 20] Asteroid 4666 Dietz (2 Moons) Closest Approach To Earth (1.835 AU)
Feb 08 - Asteroid 6714 Montreal Closest Approach To Earth (1.869 AU)
Feb 08 - Asteroid 26733 Nanavistor Closest Approach To Earth (2.017 AU)
Feb 08 - Asteroid 3992 Wagner Closest Approach To Earth (2.275 AU)
Feb 08 - 20th Anniversary (2001), Discovery of the SAU 094 Meteorite in Oman (Mars Meteorite)
Feb 09 - Comet 265P/LINEAR Perihelion (1.499 AU)
Feb 09 - Comet 203P/Korlevic Closest Approach To Earth (2.678 AU)
Feb 09 - Comet P/2019 U4 (PANSTARRS) Closest Approach To Earth (2.937 AU)
Feb 09 - Comet 189P/NEAT At Opposition (3.205 AU)
Feb 09 - Comet P/2013 YG46 (Spacewatch) At Opposition (3.343 AU)
Feb 09 - Comet P/2019 X1 (Pruyne) Closest Approach To Earth (4.007 AU)
Feb 09 - Asteroid 4433 Goldstone Closest Approach To Earth (1.788 AU)
Feb 09 - Asteroid 2309 Mr. Spock Closest Approach To Earth (1.923 AU)
Feb 09 - Asteroid 10806 Mexico Closest Approach To Earth (1.937 AU)
Feb 09 - Asteroid 7536 Fahrenheit Closest Approach To Earth (2.259 AU)
Feb 09 -[Feb 22] Kuiper Belt Object 420356 Praamzius At Opposition (42.039 AU)
Feb 10 - Comet 73P-BR/Schwassmann-Wachmann Closest Approach To Earth (2.686 AU)
Feb 10 - Comet 337P/WISE Closest Approach To Earth (2.901 AU)
Feb 10 - Aten Asteroid 2019 YP5 Near-Earth Flyby (0.021 AU)
Feb 10 - Apollo Asteroid 2008 DB Near-Earth Flyby (0.034 AU)
Feb 10 - Asteroid 4871 Riverside Closest Approach to Earth (1.283 AU)
Feb 10 - Asteroid 9937 Triceratops Closest Approach To Earth (1.666 AU)
Feb 10 - Asteroid 1501 Baade Closest Approach To Earth (1.708 AU)
Feb 10 - Asteroid 83360 Catalina Closest Approach To Earth (2.170 AU)
Feb 10 - Asteroid 27500 Mandelbrot Closest Approach To Earth (2.526 AU)
Feb 10 - 125th Anniversary (1896), Madrid Meteorite Fall in Spain
Feb 11 - Comet 73P-BD/Schwassmann-Wachmann Closest Approach To Earth (2.582 AU)
Feb 11 - Comet 73P-BG/Schwassmann-Wachmann Closest Approach To Earth (2.622 AU)
Feb 11 - Asteroid 11335 Santiago Closest Approach To Earth (1.010 AU)
Feb 11 - Asteroid 797 Montana Closest Approach To Earth (1.553 AU)
Feb 12 - Chinese New Year
Feb 12 - Comet 73P-V/Schwassmann-Wachmann Closest Approach To Earth (2.666 AU)
Feb 12 - Comet P/1996 R2 (Lagerkvist) At Opposition (3.282 AU)
Feb 12 - Asteroid 6827 Wombat Closest Approach To Earth (1.410 AU)
Feb 12 - Asteroid 6349 Acapulco Closest Approach To Earth (1.491 AU)
Feb 12 - Asteroid 15318 Innsbrook Closest Approach To Earth (1.777 AU)
Feb 12 - Asteroid 1154 Astronomia Closest Approach To Earth (2.602 AU)
Feb 12 - Asteroid 20469 Dudleymoore Closest Approach To Earth (2.287 AU)
Feb 12 - Asteroid 4758 Hermitage Closest Approach To Earth (2.716 AU)
Feb 12 - Asteroid 274020 Skywalker Closest Approach To Earth (2.794 AU)
Feb 12 - 20th Anniversary (2001), NEAR, Asteroid Eros Landing
Feb 12 - Fang Lizhi's 85th Birthday (1936)
Feb 13 - Comet P/2014 U4 (PANSTARRS) Perihelion (1.876 AU)
Feb 13 - Binary Kuiper Belt Object 79360 Sila-Nunam At Opposition (42.448 AU)
Feb 14 - Comet 213P/Van Ness At Opposition (3.690 AU)
Feb 14 - Comet 213P-B/Van Ness At Opposition (3.692 AU)
Feb 14 - Amor Asteroid 5879 Almeria Closest Approach To Earth (0.199 AU)
Feb 14 - Asteroid 70715 Allancheuvront Closest Approach To Earth (1.233 AU)
Feb 14 - Asteroid 15058 Billcooke Closest Approach To Earth (2.123 AU)
Feb 14 - Asteroid 15417 Babylon Closest Approach To Earth (3.067 AU)
Feb 14 - Asteroid 4446 Carolyn Closest Approach To Earth (4.055 AU)
Feb 14 - 10th Anniversary (2011), Stardust, Comet Tempel 1 Flyby
Feb 14 - Arthur Milne's 125th Birthday (1896)
Feb 14-19 - Workshop: Quantum Chaos and Holography, Banff, Canada
Feb 15 - Galileo Day
Feb 15 - Comet P/2019 X1 (Pruyne) At Opposition (4.013 AU)
Feb 15 - Asteroid 1951 Lick Closest Approach To Earth (0.626 AU)
Feb 15 - Asteroid 3043 San Diego Closest Approach To Earth (1.058 AU)
Feb 15 - Asteroid 6123 Aristoteles Closest Approach To Earth (1.473 AU)
Feb 15 - Asteroid 55397 Hackman Closest Approach To Earth (1.837 AU)
Feb 15 - Asteroid 327 Columbia Closest Approach To Earth (1.947 AU)
Feb 15 - Amor Asteroid 5324 Lyapunov Closest Approach To Earth (3.754 AU)
Feb 15 - George Stoney's 195th Birthday (1826)
Feb 15 - Emmanuel Liais' 195th Birthday (1826)
Feb 16 - Comet 85P/Boethin At Opposition (1.704 AU)
Feb 16 - Comet P/2013 A2 (Scotti) Perihelion (2.190 AU)
Feb 16 - Comet 73P-BB/Schwassmann-Wachmann Closest Approach To Earth (2.437 AU)
Feb 16 - Comet 135P/Shoemaker-Levy At Opposition (2.460 AU)
Feb 16 - Comet 203P/Korlevic At Opposition (2.685 AU)
Feb 16 - Comet 385P/Hill At Opposition (3.028 AU)
Feb 16 - Comet P/2013 EW90 (Tenagra) Perihelion (3.314 AU)
Feb 16 - Asteroid 8277 Machu-Picchu Closest Approach To Earth (1.276 AU)
Feb 16 - Asteroid 9949 Brontosaurus Closest Approach To Earth (1.300 AU)
Feb 16 - Asteroid 9533 Aleksejleonov Closest Approach To Earth (1.657 AU)
Feb 16 - Asteroid 8564 Anomalocaris Closest Approach To Earth (2.640 AU)
Feb 16 - Centaur Object 32532 Thereus At Opposition (11.283 AU)
Feb 16 - Kuiper Belt Object 2014 AN55 At Opposition (44.740 AU)
Feb 16 - 145th Anniversary (1876), Judesegeri Meteorite Fall (Hit Water Tank in India)
Feb 16 - Kaspar Schweizer's 205th Birthday (1816)
Feb 17 - Comet P/1999 J6 (SOHO) Perihelion (0.047 AU)
Feb 17 - Comet 73P-AW/Schwassmann-Wachmann At Opposition (1.598 AU)
Feb 17 - Asteroid 81203 Polynesia Closest Approach To Earth (1.280 AU)
Feb 17 - Apollo Asteroid 1864 Daedalus Closest Approach To Earth (1.502 AU)
Feb 17 - 25th Anniversary (1996), NEAR Launch (Asteroid Orbiter/Lander)
Feb 17 - Nasir ad-Din al-Tusi's 820th Birthday (1201)
Feb 18 - Mars 2020, Mars Landing
Feb 18 - Comet P/1999 J6 (SOHO) Closest Approach To Earth (0.935 AU)
Feb 18 - Comet 73P-BA/Schwassmann-Wachmann Closest Approach To Earth (2.350 AU)
Feb 18 - Comet 260P/McNaught At Opposition (3.337 AU)
Feb 18 - Aten Asteroid 367943 Duende Closest Approach To Earth (1.026 AU)
Feb 18 - Asteroid 9499 Excalibur Closest Approach To Earth (1.936 AU)
Feb 18 - 20th Anniversary (2001), Mike Brown & Jean-Luc Margot's Discovery of Asteroid 87 Sylvia Moon, Romulus
Feb 19 - Comet 73P-BE/Schwassmann-Wachmann Closest Approach To Earth (2.316 AU)
Feb 19 - Comet 73P-BM/Schwassmann-Wachmann Closest Approach To Earth (2.324 AU)
Feb 19 - Comet 73P-BI/Schwassmann-Wachmann Closest Approach To Earth (2.326 AU)
Feb 19 - Comet 73P-BP/Schwassmann-Wachmann Closest Approach To Earth (2.326 AU)
Feb 19 - Comet 73P-BH/Schwassmann-Wachmann Closest Approach To Earth (2.327 AU)
Feb 19 - Comet P/2013 EW90 (Tenagra) Closest Approach To Earth (2.336 AU)
Feb 19 - Comet P/2013 EW90 (Tenagra) At Opposition (2.336 AU)
Feb 19 - Apollo Asteroid 161989 Cacus Closest Approach To Earth (0.723 AU)
Feb 19 - Amor Asteroid 3102 Krok Closest Approach To Earth (2.131 AU)
Feb 19 - 65th Anniversary (1956), Sinnai Meteorite Fall (Hit Hut in Italy)
Feb 19 - 225th Anniversary (1796), Portugal Meteorite Fall
Feb 19 - 465th Anniversary (1556), Great Comet of 1556 1st Observed
Feb 20 - Parker Solar Probe, 4th Venus Flyby
Feb 20 - Comet 73P-AF/Schwassmann-Wachmann At Opposition (1.478 AU)
Feb 20 - Comet 17P/Holmes Perihelion (2.081 AU)
Feb 20 - Comet P/2019 T6 (PANSTARRS) At Opposition (3.360 AU)
Feb 20 - Asteroid 443 Photographica Closest Approach To Earth (1.140 AU)
Feb 20 - Asteroid 2625 Jack London Closest Approach To Earth (1.468 AU)
Feb 20 - Asteroid 241418 Darmstadt Closest Approach To Earth (2.426 AU)
Feb 20 - 25th Anniversary (1996), Yukio Sakurai's Discovery of Sakurai's Object (V4334 Sgr)
Feb 20 - 35th Anniversary (1986), Mir Space Station Launch
Feb 20 - Joseph Walker's 100th Birthday (1921)
Feb 21 - Comet P/2019 U4 (PANSTARRS) At Opposition (2.958 AU)
Feb 21 - Asteroid 5231 Verne Closest Approach To Earth (1.729 AU)
Feb 22 - Atira Asteroid 418265 (2008 EA32) Closest Approach To Earth (0.925 AU)
Feb 22 - Asteroid 5841 Stone Closest Approach To Earth (1.043 AU)
Feb 22 - Asteroid 4690 Strasbourg Closest Approach To Earth (1.065 AU)
Feb 22 - Asteroid 5899 Jedicke Closest Approach To Earth (1.129 AU)
Feb 22 - Asteroid 9674 Slovenija Closest Approach To Earth (1.249 AU)
Feb 22 - Asteroid 24102 Jacquecassini Closest Approach To Earth (1.667 AU)
Feb 22 - Apollo Asteroid 2102 Tantalus Closest Approach To Earth (1.872 AU)
Feb 22 - Kuiper Belt Object 55565 (2002 AW197) At Opposition (44.168 AU)
Feb 22 - 25th Anniversary (1996), STS-75 Launch (Space Shuttle Columbia)
Feb 22 - 35th Anniversary (1986), Sweden's 1st Satellite Launch (Viking)
Feb 22 - 55th Anniversary (1966), Kosmos 110 Launch (Carried Two Dogs: Veterok & Ugolyok)
Feb 22 - 115th Anniversary (1906), Max Wolf's Discovery of the 1st Trojan Asteroid (588 Achilles)
Feb 23 - Comet 233P/La Sagra Closest Approach To Earth (1.195 AU)
Feb 23 - Comet P/2013 R3 (Catalina-PANSTARRS) Closest Approach To Earth (2.814 AU)
Feb 23 - Comet 246P/NEAT Perihelion (2.864 AU)
Feb 23 - Comet 321P/SOHO At Opposition (3.279 AU)
Feb 23 - Comet P/2019 W1 (PANSTARRS) At Oppostion (3.472 AU)
Feb 23 - Aten Asteroid 2015 EQ Near-Earth Flyby (0.046 AU)
Feb 23 - Apollo Asteroid 2009 BD Closest Approach To Earth (0.923 AU)
Feb 23 - Asteroid 4513 Louvre Closest Approach To Earth (2.076 AU)
Feb 23 - Kuiper Belt Object 308193 (2005 CB79) At Opposition (37.748 AU)
Feb 23 - Kuiper Belt Object 148209 (2000 CR105) At Opposition (62.173 AU)
Feb 23 - 60th Anniversary (1961) Ras Tanura Meteorite Fall (Hit Loading Dock in Saudi Arabia)
Feb 23 - 80th Anniversary (1941), Discovery of Plutonium
Feb 23 - 85th Anniversary (1936), 1st US Rocket Airmail Launch (1936)
Feb 23 - Ruth Rowland Nichols' 120th Birthday (1901)
Feb 24 - Asteroid 100267 JAXA Closest Approach To Earth (1.611 AU)
Feb 24 - Asteroid 26382 Charlieduke Closest Approach To Earth (1.846 AU)
Feb 24 - Asteroid 6677 Renoir Closest Approach To Earth (2.597 AU)
Feb 24 - Asteroid 15783 Briancox Closest Approach To Earth (3.987 AU)
Feb 24 - 10th Anniversary (2011), STS-133 Launch (Space Shuttle Discovery, International Space Station)
Feb 24 - Pyotr Lebedev's 155th Birthday (1866)
Feb 25 - Comet P/2013 R3 (Catalina-PANSTARRS) At Opposition (2.815 AU)
Feb 25 - Asteroid 337044 Bobdylan Closest Approach To Earth (1.031 AU)
Feb 25 -[Feb 18] Asteroid 5661 Hildebrand Closest Approach To Earth (3.859 AU)
Feb 26 - Comet 135P/Shoemaker-Levy Closest Approach To Earth (2.446 AU)
Feb 26 - Comet 267P/LONEOS At Opposition (4.166 AU)
Feb 26 -[Feb 18] Asteroid 17059 Elvis Closest Approach To Earth (1.567 AU)
Feb 26 -[Feb 18] Asteroid 2046 Leningrad Closest Approach To Earth (2.690 AU)
Feb 26 -[Feb 18] 55th Anniversary (1966), Apollo AS-201 Saturn 1B Launch (Unmanned)
Feb 26 -[Feb 18] 125th Anniversary (1896), Henri Becquerel's Discovery of Radioactivity
Feb 26 -[Feb 19] Francois Arago's 235th Birthday (1786)
Feb 26 -[Feb 19] Niccolo Cabeo's 435th Birthday (1586)
Feb 27 - Comet 73P-AA/Schwassmann-Wachmann Closest Approach To Earth (2.036 AU)
Feb 27 - Comet 168P/Hergenrother At Opposition (3.551 AU)
Feb 27 - Comet 223P/Skiff At Opposition (3.786 AU)
Feb 27 -[Feb 19] Asteroid 4659 Roddenberry Closest Approach To Earth (1.706 AU)
Feb 27 -[Feb 19] Asteroid 5405 Neverland Closest Approach To Earth (1.752 AU)
Feb 27 -[Feb 20] Asteroid 3350 Scobee Closest Approach To Earth (1.780 AU)
Feb 27 -[Feb 20] Asteroid 6227 Alanrubin Closest Approach To Earth (2.494 AU)
Feb 27 - Centaur Object 121725 Aphidas At Opposition (24.073 AU)
Feb 27 -[Feb 20] 195th Anniversary (1826), Wilhelm von Biela Confirms Biela's Comet is a Periodic Comet
Feb 27 -[Feb 20] 410th Anniversary (1611), 1st Observation of a Sunspot by Johannes Fabricius
Feb 28 - Comet 86P/Wild Closest Approach To Earth (2.198 AU)
Feb 28 - Comet 243P/NEAT At Opposition (3.827 AU)
Feb 28 -[Feb 21] Asteroid 1103 Sequoia Closest Approach To Earth (1.204 AU)
Feb 28 -[Feb 21] Asteroid 9965 GNU Closest Approach To Earth (1.337 AU)
Feb 28 -[Feb 21] 55th Anniversary (1966), Original Gemini 9 Crew Killed in Plane Crash
Feb 28 -[Feb 22] 120th Anniversary (1901), Percy Molesworth's Discovery of the South Tropical Distrubance on Jupiter
Feb 28-Mar 05 - Workshop: Astrostatistics in Canada and Beyond, Banff, Canada
Feb 29 -[Feb 22] 65th Anniversary (1956), Centerville Meteorite Fall (Hit Shed in South Dakota)
Feb 29 -[Feb 22] Jack Lousma's 85th Birthday (1936)

March 2021

Mar ?? -[Feb 23] 20th Anniversary (2001), Discovery of NWA 1950 Meteorite (Mars Meteorite)
Mar ?? -[Feb 23] 20th Anniversary (2001), Discovery of NWA 856 Meteorite (Mars Meteorite)
Mar 01 -[Feb 23] Aten Asteorid 2011 DW Near-Earth Flyby (0.036 AU)
Mar 01 -[Feb 23] Asteroid 16809 Galapagos Closest Approach To Earth (1.676 AU)
Mar 01 -[Feb 23] Asteroid 85386 Payton Closest Approach To Earth (2.009 AU)
Mar 01 -[Feb 23] Amor Asteroid 481984 Cernunnos Closest Approach To Earth (2.244 AU)
Mar 01 -[Feb 23] Asteroid 4226 Damiaan Closest Approach To Earth (2.608 AU)
Mar 01 -[Feb 24] 55th Anniversary (1966), Venera 3, Venus Impact (USSR)
Mar 02 -[Feb 23] Comet C/2019 T3 (ATLAS) Perihelion (5.947 AU)
Mar 02 -[Feb 24] Apollo Asteroid 2016 DV1 Near-Earth Flyby (0.010 AU)
Mar 02 -[Feb 24] Apollo Asteroid 1999 RM45 Near-Earth Flyby (0.020 AU)
Mar 02 -[Feb 24] Aten Asteroid 2011 EH17 Near-Earth Flyby (0.024 AU)
Mar 02 -[Feb 24] Binary Aten Asteroid 153931 (2000 EA107) Closest Approach To Earth (1.115 AU)
Mar 02 -[Feb 24] Asteroid 52301 Qumran Closest Approach To Earth (1.633 AU)
Mar 02 -[Feb 24] Asteroid 13599 Lisbon Closest Approach To Earth (2.079 AU)
Mar 02 -[Feb 25] Asteroid 4559 Strauss Closest Approach To Earth (2.333 AU)
Mar 02 -[Feb 25] Asteroid 886 Washingtonia Closest Approach To Earth (3.017 AU)
Mar 03 -[Feb 25] Amor Asteroid 3551 Verenia Closest Approach To Earth (1.964 AU)
Mar 04 -[Feb 23] Hyperbolic Object A/2019 O3 Perihelion (8.827 AU)
Mar 04 -[Feb 25] Amor Asteroid 3988 Huma Closest Approach To Earth (1.957 AU)
Mar 04 -[Feb 25] Asteroid 128523 Johnmuir Closest Approach To Earth (1.825 AU)
Mar 04 -[Feb 25] Richard Tolman's 140th Birthday (1881)
Mar 05 -[Feb 23] Jupiter Passes 0.3 Degrees From Mercury
Mar 05 -[Feb 24] Hyperbolic Object A/2019 K6 Closest Approach To Earth (3.923 AU)
Mar 05 -[Feb 25] Asteroid 9500 Camelot Closest Approach To Earth (1.422 AU)
Mar 06 -[Feb 23] Mercury At Its Greatest Western Elongation (27 Degrees)
Mar 11 -[Feb 24] Comet P/2019 A3 (PANSTARRS) Closest Approach To Earth (2.999 AU)
Mar 12 -[Feb 24] Comet P/2019 A3 (PANSTARRS) At Opposition (2.999 AU)
Mar 14 -[Feb 25] Comet P/2017 U3 (PANSTARRS) Closest Approach To Earth (3.756 AU)
Mar 16 -[Feb 25] Comet P/2017 U3 (PANSTARRS) At Opposition (3.756 AU)
Mar 19 -[Feb 24] Hyperbolic Object A/2019 K6 At Opposition (3.957 AU)
Mar 20 -[Feb 24] Venus At Its Greatest Western Elongation (47 Degrees)
Mar 20 -[Feb 23] Comet P/2019 V2 (Groeller) Closest Approach To Earth (4.071 AU)
Mar 20 -[Feb 25] Kuiper Belt Object 2014 YA50 At Opposition (40.933 AU)
Mar 21 -[Feb 25] Comet P/2018 P3 (PANSTARRS) At Opposition (3.262 AU)
Mar 21 -[Feb 23] Comet P/2019 V2 (Groeller) At Opposition (4.071 AU)
Mar 22-23 -[Feb 25] International Conference on Astronomy and Space Sciences (ICASS 2021), Dubai, United Arab Emirates
Mar 27 -[Feb 23] Dwarf Planet 136472 Makemake At Opposition (51.726 AU)
Mar 29 -[Feb 24] Mercury Passes 1.4 Degrees From Neptune
Mar 29-Apr 01 -[Feb 23] Conference: White Dwarfs from Physics to Astrophysics, Santa Barbara, California

Please direct questions and comments about this calendar to
Ron Baalke
Jet Propulsion Lab

baalke@zagami.jpl.nasa.gov