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 ...

Encore for More Speaker Series in Fountain Hills will host author and historian Jim Turner at the Community Center where he ...

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

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

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

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

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 ...

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

Mining company plans uranium transport through dangerous Navajo roads as data reveals tribal segments have up to 7x higher ...

Two gargantuan canyons on the moon were carved by a hailstorm of rocks — and that’s good news for future lunar astronauts.

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 ...