A top Arizona Republican is hoping the Trump administration will do what a federal court wouldn’t: overturn a national ...

The Grand Canyon’s uranium mining debate heats up with new discoveries and Indigenous opposition. Energy demands and ...

Arizona Senate President Warren Petersen said Interior Secretary Burgum can act now to unleash America's uranium capabilities.

Grand Canyon point guard Makaih Williams will try to lead the Lopes to a 2-0 sweep of Tarleton State and UT Arlington as he ...

Two gigantic canyons on the moon — both deeper than the Grand Canyon — were carved in less than 10 minutes by floods of rocks ...

A midair collision at the Grand Canyon killed over 100. The disaster partially led to the start of the FAA and changed air traffic control laws.

"Whereas Arizona’s Grand Canyon was carved by water over the last 5 to 6 million years and from integrated paleocanyons that ...