The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

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

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

The Grand Canyon is one of the most iconic natural wonders in the world ...

Arizona has some of the prettiest sunsets, but why? There's a science behind it. Here's what to know, including sunset times ...

From dinner at a Sedona restaurant with a stunning view to a romantic garden stroll, here's your Valentine's Day inspiration ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

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

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

New Mexico's beautiful slot canyon, with its picturesque western views, dramatic white rock formations, and endless horizon, ...