Mars once had cold glacier-rimmed ocean, scientists believe

The coastline may have resembled that of Greenland or Norway. Scientists believe the ocean's existence helps explain a lack of minerals called phyllosilicates in the region.

Source: http://www.dailymail.co.uk/sciencetech/article-2031312/Mars-cold-glacier-rimmed-ocean-scientists-believe.html?ITO=1490

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