Biosphere 2 is 3.14 acres of science. Inside, human-made ecosystems are dedicated to helping us understand the future of our planet. A world within walls, where habitats grow and research thrives ...

Biosphere 2, 32540 S. Biosphere Rd. in Oracle, about 30 minutes outside Tucson, is adding to its regular tour events special lectures and panel discussions on the future of the Earth, ...

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. The rainforest is less diverse ...

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.