Lonely Dell Ranch is part of Glen Canyon National Recreation Area, which means it’s protected and preserved by the National Park Service. But unlike some historic sites that feel like museums, this ...

In one of the biggest surprises of NASA's OSIRIS-REx mission, its target asteroid, Bennu, turned out to be a jagged, rugged ...

There’s a special kind of hunger that only hits when you’re an hour into a road trip and realize that gas station beef jerky ...

The transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest copper deposits in North America is complete.

Arizona’s Meteor Crater, a timeless scar from a cosmic collision 50,000 years ago, continues to unveil its mysteries, reshaping our understanding of Earth’s geological past. Recent studies underscore ...

Arizona's Meteor Crater remains 'the perfect natural laboratory' for studying what happens when meteors strike Earth, scientists say.

HONOLULU — The U.S. military plans to exhume the remains of 88 sailors and Marines killed when the USS Arizona was bombed during the Japanese attack on Pearl Harbor and who were buried as unknowns in ...

ASU and Freeport are building robots and sensors to speed copper sorting and shrink processing waste in Arizona.

PHOENIX — Alarmed about what could have happened to one community, state lawmakers on Thursday agreed to erect some barriers to new rock and gravel operations opening up in existing neighborhoods.

Amid the search for Nancy Guthrie, an Arizona couple reported that they found a pair of blood-stained gloves and a rock with a dried blood droplet in the desert a mile from the 84-year-old’s home, ...

The couple, who asked to remain anonymous, stumbled upon the suspicious black gloves on the ground 10 feet apart off Campbell Avenue in the Catalina Foothills of Tucson on Feb. 11, KVOA reported on ...