The surface area of Saturn's moon Mimas is slightly less than the land area of Spain and is composed of water ice with only a small amount of rock. Yet Saturn's resonances with Mimas, and Mimas' resonances with other orbiting satellites are instrumental in the formation of Saturn's rings.
Surface Of Venus- Oh that strange toxic yellow sky! The surface conditions on Venus are extreme, therefore the probes only survived on the surface for a duration of 23 minutes (initial probes); and up to about two hours (final probes).
For more than 50 years, NASA's robotic deep space probes have carried nuclear batteries provided by the U.S. Department of Energy. Even the crewed Apollo moon landings carried nuclear powered equipment.
Incredible New Photos Taken From the Surface of a Comet | The image shows the comet as seen by Philae's ROLIS instrument on the during descent from about 3 Kilometers away. Resolution is about 3 meters per pixel. ESA/Rosetta/Philae/ROLIS/DLR | WIRED.com
GPS #satellite - For decades precision guidance for #aircraft approaches have been largely one size fits all, with an Instrument Landing System (#ILS) transmitting a radio beam into the sky for aircraft to follow and land safely, providing a single, safe, approach path to follow. Change is on the way with #GBAS.