Huge Asteroid Impact Crater Found Just Under the Ice in Greenland

The newly-discovered crater is 31 km. across, larger than Paris. Image: NASA's Goddard Space Flight Center.

An international team of scientists have discovered what lay hidden under Arctic ice for thousands or even hundreds of thousands of years. Using data primarily from NASA’s Operation IceBridge, they discovered one of the 25 largest impact craters anywhere on Earth. And its discovery may re-ignite an old climate debate.

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