High Res JPG (18.3 MB)

Gumball-Size Sensor

While it may look like a child's toy, this small device may someday play a critical role in solar system exploration. A group of these devices, or pods, can be collected together to form a new type of instrument called a sensor web. The individual pods contain both sensors that collect information from the surrounding environment and communication chips that transmit the data to other pods. The data finally arrives at a primary pod where it is then transmitted to the internet or an overhead satellite. Sensor webs can be deployed from spacecraft to the surface of another planet, providing scientists here on Earth with a map of that planet's environmental factors, such as trace gases possibly created by microorganisms living below the surface. This capability will help investigators evaluate environmental conditions and determine if life is possible, or has ever been possible, on a planet.

Sensor webs may also be used on Earth. Sensor webs provide the opportunity for planetary scientists and biologists to have a continual virtual presence in an area, greatly aiding the study and monitoring of ecosytems. Precision environmental measurements in hard-to-reach environments, such as steep canyon walls or ocean floors will also be possible.

Additional information: Sensor Web PDF (466 KB)