Massive Asteroid Impact Crater in Greenland Occurred a Few Million Years After Dinosaurs Went Extinct - SciTechDaily

Danish and Swedish researchers have dated the enormous Hiawatha impact crater, a 31 km-wide meteorite crater buried under a kilometer of Greenlandic ice. The dating ends speculation that the meteorite impacted after the appearance of humans and opens up a new…

Photo from fieldwork at the edge of the Greenland Ice Sheet in 2019. Credit: Pierre Beck Danish and Swedish researchers have dated the enormous Hiawatha impact crater, a 31 km-wide meteorite crater … [+5564 chars]

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