Arizona Department of Transportation officials have closed a portion of Highway 160 east of Kayenta following severe flash flooding Wednesday night.

The flood comes after a different deluge on Aug. 29 destroyed infrastructure and led to the deaths of three hikers.

Former U.S. Sen. Jon Kyl, a longtime Republican lawmaker from Arizona who shaped landmark water policies in the U.S. West has died. According to his family, Kyl died Wednesday night from a neurological disorder.

Human remains found in the Grand Canyon this week were those of the last remaining person missing after the deadly flash flooding in late August, the victim's wife said Thursday.

Navajo police say two adults and a juvenile were washed away by a flood near Newcomb, New Mexico early Wednesday. Several other areas on the Navajo Nation are also dealing with flooding.

The Central Arizona Project board is voicing disagreement over whether federal water reclamation plans are fair to Arizona and other lower basin states.

Rose Friedman, who shaped NPR's arts and culture coverage over the past 15 years, died Sept. 17 at age 38.

As world leaders gather for the U.N. General Assembly's annual general debate, Colombia's former president and Nobel Peace Prize laureate discusses the growing risks of autonomous weapons and AI

The fall equinox, which arrives Tuesday in the U.S., brings shorter days, and chances to witness alignment between Earth and the sun. It's a modern version of ancient observances of a celestial shift.

A self-described "folkie to the bone," Giddens sings and plays banjo and fiddle in this interview. Her latest album, Hope Is the Thing with Feathers, takes its name from an Emily Dickinson poem.

The Federal Aviation Administration launched an ambitious $875-million-dollar push to make the U.S. airspace more efficient. But critics say it won't solve bigger problems with air traffic control.