HomeSpace NewsWater on Mars may have flowed for a billion years longer than...

Water on Mars may have flowed for a billion years longer than thought

Observations by a long-running Mars mission suggest that liquid water may have flowed on the Red Planet as little as 2 billion years ago, much later than scientists once thought.

Scientists charted the presence of chloride salt deposits left behind by flowing water using years of data from NASA’s Mars Reconnaissance Orbiter (MRO), which has been orbiting the Red Planet since 2006. 

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