In a new study, US researchers shed light on what they call an "explosion" of animal color signals over the past 100 million ...

More than 99% of Americans live under skies polluted by light. But dark skies at the Grand Canyon and more than 145 other ...

PHOENIX - Members of the state's Water Infrastructure Finance Authority voted last week to take the first step toward asking ...

California is now producing so much solar energy that the state must increasingly ask solar farms to stop producing to ...

TSMC's US factories likely won't produce the company's most advanced chips, but the Taiwan factories will.

Gilbert water customers can expect to pay more next year to get rid of wastewater, but the Town Council appears torn over how ...

The move to renewable electricity and away from coal may have financial as well environmental benefits. That is the lesson at ...

Kurstin Turner, a first-year double major in international business and marketing, did not know anything about Brazilian ...

Phoenix Sky Harbor Airport gets $35M for upgrades from the Bipartisan Infrastructure Law, announced by Senators Kelly and ...

The enormous electricity needs of artificial intelligence are driving plans for scores of new fossil fuel plants with decades ...

On Friday, police identified the man who died at a Tolleson meat processing plant as 55-year-old Eduardo Reyes Hernandez.

Virginia-based Boeing announced plans last month to lay off thousands. Here's how those cuts will be felt in Arizona.