July 08, 2009
Engineers used straight-backward driving of a test rover on Earth on Wednesday, July 8, as they evaluate maneuvers that might be useful for getting Spirit out of a sandtrap on Mars. They had tested straight-forward driving first, then refreshed the sandbox setup simulating Spirit's situation before beginning the backward tests. Weeks of further testing and analysis are expected before engineers identify the best moves to command Spirit to perform. Meanwhile, Spirit is using its science instruments to examine the environment surrounding the rover on Mars.
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