Biosphere 2 project began in 1984, led by John Allen who called it “The Human Experiment.” The project sent eight explorers, or “biospherians,” to live in a sealed ecosystem for two years.

In early October, Biosphere 2 will receive endangered Quitobaquito pupfish to introduce into its habitat. The fish hail from Arizona's Quitobaquito Springs by the U.S.-Mexico border, where water ...

Biosphere 2 will continue to operate as one of the world’s most diverse controlled ecological systems thanks in part to a $30 million endowment from its co-founder. Philanthropist Edward P. Bass ...

Biosphere 2's 30-year-old rain forest is nearly 1.3 million cubic feet of tropical habitat supporting a complex patchwork of nearly 98 species and canopy structures, making the B2 rain forest a ...

Three decades after the original experiment, Biosphere 2 is still doing research that's the first of its kind. "There's no place where you can test on a large scale the response of complex ecosystems.

A second mission started in 1994 but only made it six months. The story of Biosphere 2, however, has evolved well beyond the late-night punchlines, tell-all books and the Pauly Shore movie Bio-Dome.