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Massive asteroid hit Greenland when it was a lush rainforest, under-ice crater shows

A huge impact crater beneath the ice in Greenland dates back 58 million years, to when the Arctic was green and populated by hippo-like animals.

Meteorite gouged huge Greenland crater 58 million years ago

Meteor crater in Greenland formed 58 million years ago

The crater, big enough to swallow Washington, D.C., was discovered in 2015 and thought to have formed 13,000 years ago. But it s actually much older.

31-km-wide crater in Greenland was created by meteor strike 58 million yrs ago: Study

The crater lies beneath Greenland's Hiawatha Glacier, covered by an ice sheet six tenths of a mile (1 km) deep.

Meteorite gouged huge Greenland crater 58 million years ago, study finds

By Will Dunham WASHINGTON (Reuters) - An immense crater in northwestern Greenland, buried under a thick sheet of ice and first spotted in 2015, is muc.