Mars rover Opportunity finds signs red planet once had fresh water

January 24, 2014 4:32 PM

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Mars rover Opportunity finds signs red planet once had fresh water

NASA's decade-old Mars rover, Opportunity, has found evidence that life-friendly fresh water once pooled on the red planet's surface, reinforcing similar discoveries made by newcomer Curiosity on the other side of the planet, scientists said on Thursday.

Opportunity, along with its now-defunct twin, Spirit, landed 10 years ago for concurrent 90-day missions to look for clues of the past existence of water.

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