DESI's first dataset maps 18.7 million celestial objects, aiding dark energy, galaxy, and universe expansion studies.

NASA’s new video is also just fun to watch. The animation shows what the seafloor looks like off the coasts of Mexico, South ...

The Sonoran Desert is a world like no other—an expansive, living landscape where rugged mountains, gigantic cacti, and an astonishing diversity of life create an ecosystem of wonder. Covering more ...

Where to taste Indigenous flavors, local ingredients, and modern Southwest cuisine in the U.S.'s first UNESCO City of ...

University of Arizona researchers are among a group of scientists who hope to discover what happened immediately after the Big Bang, when the universe expanded in a fraction of a ...

The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the ...

Main story over the next 7 days is the increasing temps through the weekend and into next week. Highs across southeast Arizona will be 15 to 20 degrees above normal, with Tucson nearing records.

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title ...

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

TUCSON, AZ (AZFamily) — About an hour and a half drive east of Tucson, nestled out in the desert, is a unique structure whose ...

Looking for internet in Arizona? CNET has listed the top internet service providers with reliable service and broad coverage.

Thanks to a grant from the state of Arizona, the nonprofit expanded its services to Tucson in 2023. Now, the city of Tucson is also pitching in, recently awarding the group a $20,000 grant.