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Mars may have a coastline like Greenland

Early in its history, Mars may have a cold glacier-rimmed ocean covering its northern lowlands and its coastline may have resembled that of Greenland.

world Updated: Aug 29, 2011 23:26 IST

Early in its history, Mars may have a cold glacier-rimmed ocean covering its northern lowlands and its coastline may have resembled that of Greenland.

Scientists who conducted computer simulations of the Red Planet found that there was a big temperature difference between its warmer equatorial regions and the much colder poles four billion years ago. As a result, they believe, any ocean in the northern lowlands would have been near-freezing.