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

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 ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...

The proposed Tusayan development would build a giant mega-resort that threatens groundwater just outside Grand Canyon ...

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.

The back-and-forth is itself a telling new signal of what companies should expect under Trump, an Arizona business leader said.

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

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 ...

With just under three minutes left, Arizona pulled away from Arizona State to win the Grand Canyon-adjacent rivalry game, ...

Grand Canyon won its sixth straight game and avenged its last loss at Utah Valley with a defensive clinic at home that moved it into a tie for first.