NASA's Mars Opportunity Rover, launched July 7, 2003 and initially intended to last 90 days, is finally over. You did an outstanding job!
After months of trying, NASA is calling it quits on freeing the Spirit rover from the Martian sand that it's been stuck in since May of 2009. Â Unfortunately, after six years of tireless service, the end might be very near for the rover, which faces a severe Martian winter in its current positio
