GRAND CANYON NATIONAL PARK, Ariz.— Tribes, conservation organizations and community groups today defended Baaj Nwaavjo I’tah ...

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 ...

Rraft through challenging whitewater rapids or hike along awe-inspiring cliffs with incredible views at this under-the-radar ...

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

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

The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were ...

Two canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that followed the initial one ...

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

This January, lots of hotel news came across TPG's desk, including a new Holiday Inn at the Grand Canyon, reservations opening at the forthcoming Rosewood Amsterdam and more.

Shutterstock The Grand Canyon State is a Certified Stargazing Paradise Arizona has some of the darkest, clearest skies in the ...

Yellowstone itinerary is ideal for either first time visitors or long time fans of the National Park. Each day offers both ...