Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

A midair collision at the Grand Canyon killed over 100. The disaster partially led to the start of the FAA and changed air ...

Arizona may officially be the Grand Canyon State and for good reason. But there are other nicknames associated with the state. Do you know them?

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

The Grand Canyon Trust recently released the results of a poll on Arizona voters’s support for national monuments. The poll found that 80% of Arziona voters support Baaj Nwaavjo ...

Trump has a history of downsizing national monuments created by Democratic ... Polling recently released by the Grand Canyon ...

A colossal impact billions of years ago carved out the canyons that rival the most breathtaking features here on Earth in a ...

Ryan Crow of the U.S. Geological Survey (USGS) gave a talk to a packed crowd at the Museum of Northern Arizona Jan. 12 ...

The Vikos Gorge, a wonder of the natural world in Greece, is known as the "Greek Grand Canyon" because of its cliffs and ...

The 1956 collision over the Grand Canyon killed more than 100 people. At the time, it was the deadliest civilian plane crash and it remains one of the worst in U.S. history. Here's everything you ...