On the evening of October 9, 1946, members of the Kaibab Trail crew at the Grand Canyon National Park were watching the sky during a meteor shower caused by the trail of Comet Giacobini-Zinner.

The investigation centers on whether two of the uranium mining company’s leaders used nonpublic information about President Trump’s cuts to a Utah monument for stock purchases.

A new study says the tiny alpine streams that feed rivers like the Colorado are seeing less groundwater-fed streamflow. That could have a cascading effect.

Democratic Arizona Gov. Katie Hobbs has selected a Republican-turned-independent as her running mate in a tough reelection campaign. The ticket with former Mesa Mayor John Giles aims to appeal to Republicans and conservative independents in a state that once was a GOP stronghold.

Carter Eslick pleaded guilty to hazing a fraternity pledge who died after drinking excessively during a rush event. Under a plea deal, he could serve up to four years of probation and a year in jail.

The U.S. Senate voted Friday to confirm Mark Cruz, a citizen of the Klamath Tribes, to lead the federal agency that provides healthcare for some 2.8 million Native American and Alaska Native patients.

Iranians visiting the city of Van, Turkey, near the Iranian border say how expensive and difficult life back home is.

President Trump is pushing the boundaries of executive power to limit transparency within the executive branch. Congressional Democrats are grappling with how to respond.

A federal judge's decision out of Texas has major implications for the National Firearms Act, lifting regulations on certain guns and suppressors in more than a dozen states.

With the Strait of Hormuz effectively closed, pressure on the Panama Canal has increased. And combined with lower water levels, transit prices through the canal are soaring.

NPR's Ailsa Chang talks with Dylan Meyer about her directorial debut, The Wrong Girls and the value of seeing women being silly and making dubious decisions onscreen.