12 min. video. Mysterious Structures Found Under Greenland's Ice Sheet

GREENLAND — In recent years, scientists have used advanced technologies like airborne radar to see how Greenland looks under its three-kilometer deep ice sheet. They found that the world’s largest island is hiding quite a few fascinating surprises. Here are the details: Live Science reports that recent scientific studies have found a number of fascinating phenomena hidden under the three-kilometer deep ice sheet that covers Greenland. One of these hidden phenomena is a huge canyon that’s almost as big as the Grand Canyon. Stretching for 740 kilometers, this hidden canyon is up to 10 kilometers wide and up to 800 meters deep in places. Another study found a massive plain in the middle of Greenland that lies below sea level. This strange depression is probably caused by the weight of the ice sheet, and it’s surrounded by a ring of hidden mountain ranges.

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