Another ‘Grand Canyon’ Discovered Beneath Greenland’s Ice — NPR Org

A little chilly for camping: Ice-penetrating radar revealed a mega-canyon below the Greenland ice sheet, extending for more than 460 miles.

A little chilly for camping: Ice-penetrating radar revealed a mega-canyon below the Greenland ice sheet, extending for more than 460 miles.

Courtesy of J. Bamber/University of Bristol

A major feature of the Earth has escaped notice — until now.

Scientists Thursday that they’ve discovered a vast canyon, twice as long as the Grand Canyon. It carves a deep scar from the center of the world’s largest island out to the coast. And, oh one more detail: It’s buried beneath as much as 2 miles of ice.

Yes, we’re talking about icy Greenland.

You may not think of it when you fly over, but beneath all that ice is a hidden terrain of bedrock. from the University of Bristol has been trying to understand what that bedrock looks like. He pulled together a vast amount of data, collected by research airplanes that have been zigzagging over Greenland for the past 40 years.

Read more on NPR Org

Published on 29 Aug 2013

Hidden for all of human history, a 460 mile long canyon has been discovered below Greenland’s ice sheet. Using radar data from NASA’s Operation IceBridge and other airborne campaigns, scientists led by a team from the University of Bristol found the canyon runs from near the center of the island northward to the fjord of the Petermann Glacier.
For more information: nasa.gov/content/goddard/nasa-data-revea­ls-mega-canyon-under-greenland-ice#.Uh9x­rxvku9Q

Source: NASAexplorer

NASAexplorer

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