Martian lake beds and deltas reveal the Red Planet’s watery past. But many puzzles remain, scientist Bruce Jakosky says.

The administration appears set to end federal oversight of police, including agencies that have committed systemic civil ...

University of Arizona's medical research building in Phoenix is being paused due to "potential changes to federal funding." ...

Waymo is testing its autonomous driving technology in a new electric vehicle called the Zeekr in Phoenix. The Zeekr will ...

Astronauts Suni Williams and Butch Wilmore will return to Earth after Boeing Starliner issues stranded them on the International Space Station.

Kevin Durant and Devin Booker led the Phoenix Suns with 22 points each in a 122-106 home win against the Sacramento Kings on Friday. The victory snapped Phoenix's two-game skid and handed ...