Republican state lawmakers have introduced a bill requiring Arizona sheriff’s offices and corrections staff to help federal immigration agencies with enforcement.

A coalition is working to add federal protections to the Upper Verde River and Sycamore Creek via a Wild and Scenic River designation. It's threatened by groundwater pumping and long-term drought.

Though distinct disciplines, both paleontology and archaeology use similar technologies and methods in their work and show fascinating intersections.

For several hours Tuesday morning, residents near the Whispering Pines Ranch area west of Bellemont were prepared for a possible evacuation due to a nearby wildfire.

A quick-strike crew of Navajo firefighters and utility workers are helping Los Angeles residents cut through landslides, mangled trees and charred debris of the Eaton Fire that rampaged through the Los Angeles area.

U.S. Interior Secretary Deb Haaland set out four years ago on a historic journey as the first Native American to serve as a cabinet secretary.

On Sunday, Francis did not preside over the Easter Mass in St. Peter's Square, instead delegating it to Italian Cardinal Angelo Comastri.

Pope Francis's death sets an ancient machinery into motion. Soon, with a puff of smoke, the last absolute monarchy in Europe will get a new leader.

The international community reacts to the death of Pope Francis, a global figure whose influence went beyond the Catholic Church.

NPR reports on how people in South America are reacting to the death of Pope Francis, who was from Argentina.

Pope Francis, who has died at age 88, cast an image of humility during years of strain and change, within his church, and around the world.