And 2 years on Mars for both rovers
TWIN MARS ROVERS STILL EXPLORING AFTER TWO YEARS
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With a longevity unthinkable even to the humans that built them, NASA's
remarkable Mars rovers remain hard at work after two years on the Red
Planet's surface. Both motorized robots are still going strong in their
continued scientific pursuits.
http://spaceflightnow.com/news/n0601/24marsrovers/
