The discovery of a massive crater formed by the impact of a meteorite more than three billion years ago is changing the way ...

During Monday's news conference, Arizona GOP leaders criticized Gov. Katie Hobbs for vetoing a bill requiring local and state officials in Arizona to cooperate with federal enforcement efforts.

Coconino National Forest fire managers with the Flagstaff Ranger District plan ... At night, smoke may impact Bellemont and Interstate 40 in the Bellemont area.

Why it's incredible: Evidence suggests it could be the greatest known impact crater on Earth. The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 ...