Unique double crater identified in Sweden

Researchers at the Department of Earth Sciences have found traces of two enormous meteorite impacts in the Swedish county of Jämtland, a twin strike that occurred around 460 million years ago.

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The double impact illustrated by Don Dixon, copyright Erik Sturkell

“Around 470 million years ago, two large asteroids collided in the asteroid belt between Mars and Jupiter, and many fragments were thrown off in new orbits,” says Professor of Geophysics Erik Sturkell. “Many of these crashed on Earth, such as these two in Jämtland.”

Read more at the university website