Arizona Public Service (APS), Salt River Project (SRP), and Tucson Electric Power (TEP)—have announced plans to explore the ...

Geologists examine a massive fissure in Arizona and find that may have existed way before it caught public attention.

Arizona's three largest electric utilities will jointly explore expanded nuclear-power options. A new plant here could be ...

A Valley fever vaccine for animals may be available by the end of the year. Dr. John Galgiani, founder of the Valley Fever Center for Excellence at the University of Arizona, says they discovered a ...

Jumping off Robert F. Kennedy Jr.'s "Make America Healthy Again" campaign, Arizona Republicans are supporting House Bill 2164 ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the far side.

Tucson's new ‘Astro Trail' is a collection of national parks, state parks, observatories, and planetariums, that offer a ...