NASA's Curiosity rover is eyeing a three-foot-tall sand dune, an ambitious climb for the SUV-sized rover. Despite the size of the climb, NASA doesn't expect the rover to actually catch air on this maneuver.
China moon landing: China joined elite company today with the controlled landing of its "Jade Rabbit" rover on the moon. China follows the US and Soviet Union as the third country with a controlled - or "soft" - landing on the moon.
The first measurement of radiation at Mars' surface has implications for a human mission to the Red Planet, as well as for where Mars' missions might find traces of Martian life – if it was ever there.