FILE - This undated file photo provided by NASA shows NASA's Mars Spirit rover. The Jet Propulsion Lab plans a celebration of the accomplishments of the Mars rover Spirit, which explored the red ... more 
FILE - This undated file photo provided by NASA shows NASA's Mars Spirit rover. The Jet Propulsion Lab plans a celebration of the accomplishments of the Mars rover Spirit, which explored the red planet for years until it fell silent and managers ended its mission in May. (AP Photo/NASA-JPL, File) less 
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Associated Press | Photo By NASA-JPL, File
Tue, Jul 19, 2011 4:14 PM EDT