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 ...

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 ...

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

Texas billionaire Edward P. Bass is giving $30 million to the University of Arizona to support the Biosphere 2 research facility. Biosphere 2 Director Joaquin Ruiz says Bass' gift will allow continued ...

PHOENIX — Biosphere 2, a massive research facility in southern Arizona, will soon be used to investigate changes in Earth’s oceans, rainforests and crops. “We’re going to start other experiments in ...

The University of Arizona today announces a major new scientific initiative to tackle the grand challenges facing science and society, including global climate change, the fate of water and how energy ...

Researchers who study Earth's biosphere tend to operate from one of three scientific cultures, each with distinct ways of conducting science, and which have been operating mostly independently from ...

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 ...