Early in the morning of October 6, 2008, astronomers at the University of Arizona detected an asteroid on a collision course with Earth. When other sightings cropped up across the world, the ...

A peer-reviewed study published in the journal Geology proposes that the same asteroid strike that carved Arizona’s Meteor ...

This piece is part of a special project on deep time examining what the Western U.S. was like thousands, millions and even billions of years ago, and how that history is still visible and ...

Lake Manicouagan is a massive ring-shaped lake in northern Quebec, Canada, that fills the bowl of an ancient meteor impact ...

The Yilan crater (center) is a 1.15-mile-wide meteor crater recently discovered in China's Lesser Xing'an mountain range. It could be as young as 46,000 years, likely making it the youngest major ...

The discovery of a new tektite-strewn field in northeastern Brazil points to a large meteorite impact—but geologists have yet ...