It’s hard to believe that NASA’s Mars Rover Spirit which was only supposed to function for a short period of time had been going strong on the Red Planet for years. Sadly however its mission is coming to an end.
From surviving bouts of amnesia to an escape from a sandy dungeon, sometimes it seemed that NASA's Mars rover Spirit had at least nine lives. But yesterday, after hearing not a peep since March 2010, NASA decided to cut communications with the rover, putting an end to a six-year Martian mission during which it traveled 7730.5 meters. Daredevil escapes aside, here we assess the scientific legacy of this robot geologist.