If some asteroid big enough to do damage has us in its crosshairs, we hope we’ll know about it as soon as we can, giving us enough time, perhaps, to do something about it.

A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

Sixty six million years ago, just off the coast of the Yucatan Peninsula in what is now the North East coast of modern Mexico, and a herd of spectacular creatures is on the move. About thirty ...