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Mars Rover Sets Endurance Record: Photos From Opportunity’s 6 Years On-Planet | 80beats | Discover Magazine: “In January 2004, the Mars rover Opportunity, along with its brother Spirit, landed on the Red Planet. Eight months later we were wowed by their longevity, as both the machines had crawled long past their expected 90-day lifetimes. This year Spirit got intractably stuck in the sand and NASA announced that its days of wandering were finally at an end. But not Opportunity: The less mechanically troubled of the twins, Opportunity continues to rove the surface of Mars, and this week it passed the duration record for time on Mars set by NASA’s Viking 1 lander when it died in 1982. As of today, Opportunity has been operating on Mars for six years and 118 days.”