Large meteor left crater hidden under Greenland Ice
Lurking below more than a mile of ice in Greenland is a circular depression that was very likely left by an ancient impact with a space rock.
The meteor impact crater, reported February 11 in the journal Geophysical Research Letters, is only the second ever discovered in Greenland. It’s just 113 miles (183 kilometers) from the other crater in the country, which scientists reported last year.
Joseph MacGregor, a glaciologist at NASA’s Goddard Space Flight Center, was on the team that discovered the first crater, dubbed Hiawatha. In late 2016, when most of the work identifying the Hiawatha crater was done though the research was yet to be published, MacGregor was already on the hunt for another crater. He found one faster than he expected.
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