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

The vast valleys of Vallis Schrödinger and Vallis Planck demonstrate the incredible forces that shaped the face of the Moon.

Can you skydive continuously without landing? Watch wingsuit flyer Max Manow pull off a never-before-seen feat over the Grand ...

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

If you're planning a trip to Arizona's Grand Canyon, don't forget to check out this nifty little pool in its depths. But be ...

From spectacular landscapes — hello, Havasu Falls — to artistic wonders, here are 10 of the most beautiful things to see in ...

A federal judge says Arizona lawmakers and others lacked standing to sue the Biden administration over its creation of a new ...

About the canyons: The two canyons, called Vallis Schrödinger and Vallis Planck, are located on the far side of the moon, so they can only be seen from orbit — not from Earth. Each canyon is over 165 ...

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

If you've already seen the Grand Canyon, make your way to this North American canyon that's even bigger (and that actually ...

Whether you're hiking, boating or just taking a stroll outside, the great outdoors has its dangers, and that includes the ...

Caleb Shaw, the nephew of head coach Bryce Drew and son of assistant Casey Shaw, has given Grand Canyon's basketball's bench ...