From the April's Tucson-area coronavirus coverage: 1,200+ Pima County cases, stay-home order extended series Stephanie Casanova Apr 19, 2020 Apr 19, 2020Updated Apr 20, 2020 Biosphere 2 University ...

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 ...

The Biosphere 2 complex including the living quarters, right, on June 20, 2025, in Oracle, Ariz., U.S. It's a living, breathing laboratory called Biosphere 2.

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.

Inside Biosphere 2's giant glass pyramid, tropical trees stretch 80 feet above the forest floor. Crazy ants, so named because of their erratic movements, scurry below.

Inside Biosphere 2's giant glass pyramid, tropical trees stretch 80 feet above the forest floor. Crazy ants, so named because of their erratic movements, scurry below.

Inside Biosphere 2's giant glass pyramid, tropical trees stretch 80 feet above the forest floor. Crazy ants, so named because of their erratic movements, scurry below.