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.

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.

HT Image

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.