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 ...

Four middle school students from Baker City — and their adult chaperones — spent three days immersed in science at Biosphere ...

ORACLE, AZ — Four dozen Sonoyta pupfish are now swimming beneath the towering glass pyramids of the University of Arizona’s Biosphere 2 after a multi-year effort to conserve the critically endangered ...

In the Arizona desert, a vast glass structure sits far from cities and farmland. It was built to test an idea that once ...

TUCSON, Ariz. (13 News) - For the first time in more than three decades, a human was sealed inside a Biosphere 2 facility with nothing but plants to clean the air. Matthias Beach spent two weeks ...

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 ...