A Tale of Two Rovers

The Mars Exploration Rovers “Spirit” and “Opportunity” were sent to Mars for what was planned to be a 90 day mission. 5 years later they are still roving the surface of Mars, making new

Category ID: 28
Orig Pub Date: Jan 09, 2009 3691 days ago
Channel: NASA Url: Go
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  Apr 29, 2018