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Image Advisory

April 19, 2000

High Resolution Galileo Views of Jupiter's Moons are Online

Lava flows, cliffs and depressions from collapsed volcanic eruptions are seen in new images of Jupiter's moon Io, taken by NASA's Galileo spacecraft during its most recent flyby on February 22. The new pictures give scientists more information to help them in their ongoing quest to understand the rampant, fiery volcanic activity on Io and its similarities to past and present volcanism on Earth.

The new images are available online at the following website:

The new batch of images also includes a high-resolution view of the side of Europa that faces Jupiter. That hemisphere shows variations in surface materials that may indicate the presence of sulfuric acid (common battery acid) and salty minerals, possibly from a subsurface ocean.

Galileo has been orbiting Jupiter and its moons since December 1995. After its primary mission ended in December 1997, Galileo successfully completed a two-year extended mission, and it is currently embarking on another extension, called the Galileo Millennium Mission.

More information about the Galileo mission is available at:

JPL manages Galileo for NASA' s Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology, Pasadena, CA.