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

The gigantic cataclysm, which released energy 130 times more powerful than the detonation of the entire world’s atomic ...

Federal judge dismisses Arizona GOP lawsuit challenging Biden's designation of Baaj Nwaavjo I'tah Kukveni National Monument ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village area ...

Zion National Park to Grand Canyon road trip guide • Discover the best route, scenic stops, travel tips, and must-see ...

The moon's Schrödinger impact basin near the south pole holds two grand canyons formed by an enormous asteroid collision 3.8 ...

Projectiles flying faster than bullets from a blast 130 times bigger than the global nuclear stockpile helped form giant lunar canyons, according to a new study.

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...

Lake Havasu and the London Bridge are uniquely Arizona road trip destinations. Here's why it's worth the drive and what to ...

Navajo communities along the 174-mile stretch of the uranium haul route on Diné lands say the tribe and mining company are ...

For author Percival Everett, libraries have long been a source of knowledge and discovery and pleasure, even of the forbidden kind.

The United States is home to some of the most awe-inspiring, diverse and recognisable landscapes, with the National Parks the ...