Step into the heart of one of Earth’s best-preserved impact sites—Arizona’s Meteor Crater. Formed over 50,000 years ago by a fiery space rock, this colossal landmark is a stunning reminder ...

The rock that smashed into the US state of Arizona around 49,000 years ago with ... for it left a huge crater 1.2 kilometres across and 150 metres deep. If so, the high-velocity collision should ...

METEOR CRATER, Ariz. — Oh, to have been an astronomer perched atop the San Francisco Peaks outside Flagstaff, Ariz., about 50,000 years ago. On one side you’d have a view of the Grand Canyon ...

Russia, last year. "That left the one big crater, but also several smaller ones in the immediate vicinity," NASA says.