The impact left a 124-mile-wide crater underneath the Gulf of Mexico’s Yucatán Peninsula. And, until now, it had been assumed that the asteroid ... It also would have caused a 7.0 magnitude ...

Torres: 3.1 percent is not high but it is the highest risk level of a space rock crashing into us, ever. Except for the one ...

It’s thought that the huge Chicxulub crater in the Gulf of Mexico was caused by a 6 miles/10 kilometers diameter asteroid that struck Earth 66 million years ago, wiping out the dinosaurs.