NASA's oldest Mars rover survives another harsh winter

Published: 8/12/2017
NASA's oldest Mars rover survives another harsh winter
Source: WWW.MARSDAILY.COM

Washington (UPI) Dec 7, 2017 Opportunity, NASA's senior Mars rover, has lasted through another harsh winter on the Red Planet. Like Earth, Mars has a tilted axis. But because Mars takes longer to circle the sun, its seasons are nearly twice as long. With the sun hanging low and appearing only for a brief time each day, keeping Opportunity charged via its solar panels is a challenge. Engineers wor

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