On Sept. 26, 1991, 8 “Biospherians” began 730-day experiment in Arizona desert.

ORACLE, Arizona—From the outset, the Biosphere 2 project had all the ingredients of a large-scale earth science experiment with profound implications for human survival in outer space. Could a small ...

Biosphere 2 was a highly ambitious experiment to simulate a self-sustaining Mars colony in the Arizona desert. Eight men and women locked themselves inside for 2 years and experienced one incredible ...

An international team of researchers has descended on University of Arizona’s Biosphere 2, sealing off the complex’s rain forest, to conduct a one-of-a-kind study examining the impact of droughts on ...

A sealed glass world lost about a third of its oxygen in 16 months. Scientists traced it to soil microbes and concrete.

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 ...

Nestled in the foothills of the Catalina Mountains, around 31 miles from Tucson, there exists an oasis; a collection of environments one would never anticipate to exist in the scorched Arizona desert.

ORACLE, Ariz. (KVOA) — Just about an hour out of Tucson is the world's largest controlled environment dedicated to understanding the impacts of climate change. We're talking about the University of ...

ORACLE, ARIZONA (dpa) – At its start 10 years ago Biosphere 2 was intended as a test to see whether humans could survive on Mars and other planets. Four men and four women attempted to survive totally ...

TUCSON - Nearly 16 years after Biosphere 2 sprang to life, it will be getting its fourth go-round as a research facility. And University of Arizona officials taking over the research reins as of July ...

Microbes are doing a lot under the soil surface that can't be seen with the naked eye—from sequestering carbon to building the foundation of Earth's crust. But even tiny microbes are feeling the ...

Biosphere 2, the glass-enclosed ecological site in the Arizona desert, is for sale. Columbia University ran the research center from 1996 through 2003 and spent an estimated $25-million there. In ...