NASA's Spirit roverFrom New Scientist:
NASA's Spirit rover should be able to wriggle free of its sandy trap on Mars after all, says a scientist for the mission. But the plucky robotic explorer will need to survive the bitter Martian winter first.
In April 2009, Spirit's wheels broke through a thin surface crust and got mired in the loose sand below. After months of trying unsuccessfully to free the rover, NASA declared on 26 January that Spirit would henceforth be a stationary lander mission rather than a rover.
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