GOLDEN, Colo. —

After more than three and a half years of operation, NASA’s twin Mars rovers continue to

�thrive, showing no signs of stopping as they relay

�a wealth of valuable data back to Earth about that ancient world’s past, present and future.

After more than three and a half years of operation, NASA’s twin Mars rovers continue to thrive, showing no signs of stopping as they relay a wealth of valuable data back to Earth about that ancient world’s past, present and future.

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