This artist's illustration shows NASA's four successful Mars rovers (from left to right): Sojourner, Spirit and Opportunity, and Curiosity. The image also shows the upcoming Mars 2020 rover and a human explorer.

November 21, 2018

This artist's illustration shows NASA's four successful Mars rovers (from left to right): Sojourner, Spirit and Opportunity, and Curiosity. The image also shows the upcoming Mars 2020 rover and a human explorer.

Credits

NASA

ENLARGE

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