Four dozen tiny pupfish are swimming in a constructed habitat in a giant glass structure once meant to house humans.

The University of Arizona-owned Biosphere 2 introduced the critically endangered Sonoyta pupfish into a stream inside of its ...

The University of Arizona's Biosphere 2 has taken a significant step in conservation efforts by introducing the endangered ...

You know how we're all dreaming about living on other planets someday? Well, turns out, to make that happen, we need to get ...

About 50 Sonoyta pupfish were released into an artificial stream inside the University of Arizona's Biosphere 2 on Friday in hopes of establishing a new reserve population of the endangered ...

Biosphere 2 started with eight scientists and a very ambitious experiment. Now, almost 35 years later, it's still being used ...

A researcher was sealed inside of Arizona’s Biosphere 2 facility for two weeks with nothing but plants to clean the air as a ...

(THE CONVERSATION) From a distance, Biosphere 2 emerges from the cacti and creosote of the Sonoran desert like a gleaming oasis, a colony of glass and bright white structures. Despite being just ...

Biosphere 2 started with eight scientists and a very ambitious experiment. Now, almost 35 years later, it's still being used ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Scott Saleska, University of Arizona; Chris Impey, University of Arizona, and Ghiwa ...