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

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists ...

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 ...

Discover 5 stunning landscapes in Saudi Arabia—from lush mountains to hidden canyons—that reveal a side of the kingdom you’ve ...