The National Drought Mitigation Center says nearly half of Arizona is in extreme drought, including most of Gila and Mohave counties and the southern portions of Yavapai, Coconino, Navajo and Apache counties.

The Species from Feces Lab at Northern Arizona University examines DNA in animal feces. The lab’s motto is "to be number one at number two.”

A new study led by the University of Arizona suggests anxiety and post-traumatic stress disorder can have ripple effects on the reproductive health of female firefighters.

More than 500 people demonstrated outside Flagstaff City Hall Monday in opposition to the Trump administration’s layoffs of thousands of federal workers.

The Sedona City Council gave preliminary approval to use more than $875,000 from the state for a rapid re-housing program that would help residents pay for the costs of moving into an apartment.

Grand Canyon National Park officials say crews have recovered the body of a 20-year-old California man who apparently drove a vehicle off the South Rim.

Iranian and U.S. officials continue indirect talks aimed at keeping Iran from developing nuclear weapons. The talks come amid reports that Trump told Israel to hold off on attacking Iranian facilities.

Two new studies suggest that stem cells are close to helping people with Parkinson's disease. The results are a victory for scientists who have spent decades trying to treat it with brain cells.

The Trump administration is considering sending people who are accused of crimes in the U.S. to prisons in El Salvador, both immigrants and U.S. citizens alike. Legal experts say sending people to foreign prisons is like dropping them into a black box, where they don't have the protections people in U.S. custody are afforded.

On the 30th anniversary of the Oklahoma City bombing, a theater production brings the stories of survivors and victims to the next generation.

Champion chess player and Soviet dissident Garry Kasparov has a few thoughts about how well democracy in the U.S. is doing. He tells NPR's Scott Simon that it's not America first - it's America alone.