The Semipalatinsk Test Site, also called the Polygon, is lesser known but was used by the Soviet Union to test nuclear ...

Mexican President Claudia Sheinbaum said Thursday that her government wouldn’t rule out filing a civil lawsuit against Google ...

Is it time to stop changing our clocks twice a year? Here's a state-by-state look at efforts to make daylight saving time ...

The start of Diamondbacks spring training means the beginning of free access for fans to watch the team’s workouts.

A dry January across Colorado and the rest of the Rocky Mountain West has created a dichotomy of water haves and have-nots.

These maps show where US fire danger is the highest this spring. It might not be where you think - Following January’s deadly ...

Wildlife managers, scientists and conservationists have a more complete ecological map of the American West with the release ...

Now, scientists believe that they have figured it out. Two huge canyons scored into the surface of the Moon were created in ...

More than 1 million people could pour into western Maricopa County in the coming decades – if housing developers can secure ...

An atmospheric river gathers moisture from the tropics and moves it inland. California will see heavy rain and snow in some ...

One of the hottest teams in college basketball faces a tought test when Arizona travels to Arizona State for a high-stakes rivalry Saturday matchup on CBS. The Wildcats (14-6, 8-1 Big 12 ...

Central Arizona is preparing for more intense droughts and floods through major water projects with federal support.