A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River ...

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 ...