ORACLE, AZ — Arizona is home to one of the most unique science experiments in the world. Biosphere 2 is a groundbreaking research facility studying climate change and ecosystems inside an enclosed ...

Add Yahoo as a preferred source to see more of our stories on Google. ORACLE, AZ — Four dozen Sonoyta pupfish are now swimming beneath the towering glass pyramids of the University of Arizona’s ...

Oracle, Arizona, is one of those small desert mountain towns you probably never heard of, unless you came here to visit its ...

Biosphere 2 started with eight scientists and a very ambitious experiment. Now, almost 35 years later, it's still being used for cutting-edge research. Scientists continue to use it to study Earth's ...

TUCSON, Ariz. (KVOA) - The University of Arizona's Biosphere 2 is making strides in space research with its Space Analog for the Moon and Mars (SAM) facility. This sealed habitat tests life-support ...

PINAL COUNTY, Ariz. (KVOA) - Firefighting and forestry experts, alongside university researchers, gathered at Biosphere 2 in Pinal County to explore solutions to Arizona's wildfire challenges. The ...

PHOENIX — The Biosphere Fire that was burning outside of Tucson Sunday morning has been fully contained. The wildfire burned approximately 13 acres, according to the Department of Forestry and Fire ...

TUCSON, Ariz. (AP) — Texas billionaire Edward P. Bass is giving $30 million to the University of Arizona to support the Biosphere 2 research facility. Biosphere 2 Director Joaquin Ruiz says Bass' gift ...

In Arizona, nature is diverse and dramatic. The state's Tonto Natural Bridge State Park is home to the world's largest natural travertine bridge, where visitors can hike and explore its unparalleled ...

The rare Sonoyta pupfish were introduced into a desert river habitat inside the huge Biosphere 2 structure near Tucson. The dish are native to Quitobaquito Springs near the Arizona-Mexico border, but ...