The Martians have struck again as NASA have announced they've lost contact with the Spirit rover. Let's hope it's just a temporary communication glitch as according to the press release “similar events occurred several times during the Mars Pathfinder mission”. If this is a major fault and the end of the Spirit mission then it's a poignant end because the last published image received from Spirit was a look back at the empty lander, an image entitled 'Empty nest'. Let's hope this Spirit has yet flown the nest for good.