NASA engineers remotely freed the Curiosity rover’s drill after it became stuck in a rock on Mars for the first time in the mission’s 13 years. The unusual incident occurred when the rock, nicknamed Atacama, remained attached to the drill sleeve after ...

The sandfish lizard moves very efficiently through the sands of the Sahara desert, and not surprisingly, it doesn't use wheels to do so. Scientists have now copied the reptile's swimming motion in an experimental Mars rover that outperforms others in sandy soil.