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

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 ...

Combine a trek through nature with outdoor yoga classes, a two-for-the-price-of-one workout, with opportunities in Los ...

Two such lunar canyons, Vallis Schrödinger and Vallis Planck, stretch over 270 km (168 miles) each, with depths of 2.7 km ...

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

From the highest peaks to the deepest chasms, the 7 natural wonders of the world will make you want to lace up your exploring ...

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

One of those gems is Paradise Canyon and while ... Coming up Paradise Rim you can see The Gap and Utah Hill to the west and the Arizona Strip and beyond to the south. So take advantage of the ...

From supermoons to a total eclipse to the national park’s biggest and best-attended star parties, these are the must-see celestial shows of the year ...

Tucked away in the rugged terrain of the Anza-Borrego Desert State Park is the world’s largest wooden trestle bridge, a ...

PHOENIX — South Mountain’s Mormon Trail offers hikers a rugged adventure through rocky tunnels, dry waterfalls, and breathtaking views of Phoenix. One highlight of the hike is Fat Man’s Pass ...