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

The Grand Canyon, one of the most iconic geological formations on Earth, may hold deeper secrets about our planet’s history ...

Spanning three quarters of a mile and almost 600 feet deep, Meteor Crater was blasted by a nickel-iron meteorite roughly the ...

July is will showcase three meteor showers with the famous Perseids peaking in August. Here's when and how to watch in ...

Christian Varady was watching the sky outside his Cantonment home when he saw a color-changing fireball fall into the ...