Impact crater

Space Oklahoma crater may be 100 million years younger than thought, shifting it toward a mass extinction event

Microscopic zircons move an Oklahoma impact crater out of the Ordovician and close to one of Earth’s major extinction intervals.

Space Amateur astronomer leads scientists to a massive 390-million-year-old impact crater in Quebec Joshua Shavit

Space NASA discovers a massive new lunar impact that blasted a 728-foot crater into the Moon Joseph Shavit