December 8, 2021

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6 mysterious structures hidden beneath the Greenland ice sheet

4 min read


Fridtjof Nansen, the leader of the first expedition to cross Greenland, once described what he found in the Arctic as “the great adventure of the ice, deep and pure as infinity.” Nansen, who made his journey in 1888, could not have known of the wonders hidden below the icy landscape beneath his skis. 

Today, thanks to radar and other technologies, the part of Greenland that sits below its 9,800-foot-thick(3,000 meters) ice sheet is coming into focus. These new tools reveal a complex, invisible landscape that holds clues to the past and future of the Arctic.

The world’s longest canyon

3D view of the subglacial canyon, looking northwest from central Greenland. (Image credit: J. Bamber, University Bristol)

The Greenland ice sheet hides the longest canyon in the world. 



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