Grand Canyon National Park lost 10 probationary employees to layoffs, causing long wait times at the South Rim entrance and delays to the Transcanyon Waterline replacement.

Marine reptiles called Ichthyosaurs existed millions of years ago within a vast ocean that surrounded the supercontinent known as Pangea. They had streamlined bodies adapted for swift movement in aquatic environments.

A grand jury has indicted a Show Low man in the fatal shooting of his 1-year-old daughter, and prosecutors say he carried out the crime with an AR-style rifle in front of the girl's mother.

The National Weather Service in Flagstaff will release avalanche reports for the first time to increase awareness and public safety.

This week’s meeting focused on the management of Glen Canyon Dam was canceled by the Trump Administration. It's one of many scientific conferences and federal meetings that have been canceled or indefinitely postponed.

Last summer, Congress allowed a program to compensate victims of Cold War-era radiation exposure to expire. Now, a new bipartisan effort to both revive and expand the Radiation Exposure Compensation Act is picking up steam.

The four individuals — from Ireland, Poland and the U.S. — face possible deportation but say German authorities haven't made clear what crimes they've committed. They're appealing the orders.

Google and the Justice Department will face off in the final stage of a landmark antitrust case that could force the company to spin off its Chrome browser business.

The former Hollywood producer is on trial for sex crimes in New York — again. Here are the allegations and proceedings that have led to this.

NPR's Ayesha Rascoe asks Georgetown law professor Stephen Vladeck about the U.S. Supreme Court's move to halt the deportation of Venezuelans accused of being gang members.

HHS Sec. Robert F. Kennedy's comments on autism have sparked outrage. NPR's Ayesha Rascoe asks Colin Killick, director of the Autistic Self Advocacy Network, for his reaction.