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 ...

While a visit to the Grand Canyon is mesmerizing and worthwhile, it's not necessarily easy. We consider the closest and most ...

The Grand Canyon Trust recently released the results of a poll on Arizona voters’s support for national monuments. The poll ...

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

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

Arizona has hosted the Super Bowl several times. What year will the Super Bowl be in Arizona again? Here's when it could ...

Arizona Senate President Warren Petersen said Interior Secretary Burgum can act now to unleash America's uranium capabilities.

Center for Biological Diversity Reports President Trump’s Interior Order Threatens to Open Grand Canyon National Monument to ...

Despite a federal ruling rejecting a motion to remove protections on land in near the Grand Canyon, an agreement between ...

GRAND CANYON NATIONAL PARK, Ariz.— Tribes, conservation organizations and community groups today defended Baaj Nwaavjo I’tah Kukveni – Ancestral Footprints of the Grand Canyon National Monument, which ...