The Mars rovers, which NASA designed to send spectacular pictures of the red planet back to Earth, are still going some five years after landing in the alien world. That is 20 times longer than their intended lifespans. Of the hundreds of engineers and scientists who cheered at NASA's Jet Propulsion Laboratory (JPL), in Pasadena, Calif., on Jan. 3, 2004, when Spirit landed safely, and 21 days later when Opportunity followed suit, none predicted the team would still be operating…
Mars Rovers Spirit, Opportunity Still Going After Five Years, 20 Times Their Design Lives
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