Massive Impact Crater Found Hidden Under Greenland Ice
Researchers found sediment that included glass from a river in the center of the crater, which was likely formed when the asteroid crashed and melted rocks in the earth, according to the paper published in Science Advances.
Researchers found the big craterlike depression beneath the Hiawatha Glacier in remote northwest Greenland, and only after looking at satellite imagery did they see circular patterns in the crater.
That information, along with data collected between 1997 and 2014 by researchers at the University of Kansas’ Center for the Remote Sensing of Ice Sheets, presented a strong case for the site being an impact crater.
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