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

With 22 national parks and monuments to its name, Arizona boasts some of the most astonishing landscapes in the country, from the Grand Canyon to the towering buttes of Monument ...

The Grand Canyon, located in Arizona, USA, is one of the most iconic natural wonders in the world. Carved over millions of ...

We can't get enough of the spectacular views of the jaw-dropping red rock formations from this iconic roadside attraction in ...

The body of a hiker who apparently had died in a fall from sandstone rock formations was found Sunday on a popular trail at ...

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

"Whereas Arizona’s Grand Canyon was carved by water over the last 5 to 6 million years and from integrated paleocanyons that ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which are each about the size of Earth’s Grand Canyon. By Kenneth Chang ...

The Grand Canyon's three Inner Corridor trails had to be shut after workers discovered dangerous chlorine gas at the Roaring Springs waterfall ...

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

Hoodoos are unique rock formations found in US ... hiking trails in Arizona national parks unveils the beauty of the Grand Canyon State's dramatic and unique landscapes. Nestled among Utah's ...