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December 07, 2005

Mars Rovers Still Going, Going, Going... But How Much Longer Is Anyone's Guess

Opportunity's Arm, Steering Malfunctioning; Spirit's Scraping Tool Worn

When the Spirit rover landed on the Martian surface on January 3, 2004, not even the most wide-eyed optimist in the NASA community believed that the rover would still be functioning nearly two earth-years later. After all, the rover was built for a mission expected to last only 90 days, with stress tests for only three times that number.