Mars once had a vast ocean, bigger than the Arctic

March 10, 2015 2:46 PM

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According to NASA scientists, a primitive ocean on Mars held more water than Earth’s Arctic Ocean. They measured water signatures in the Red Planet’s atmosphere using ground-based observatories.

The new estimate is based on detailed observations made at the European Southern Observatory’s Very Large Telescope in Chile, and the WM Keck Observatory and NASA Infrared Telescope Facility in Hawaii.

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