Biosphere 2’s latest mission: Learning how life first emerged on Earth – and how to make barren worlds habitable
- Written by Scott Saleska, Professor of Ecology & Evolutionary Biology, University of Arizona
 Biosphere 2 is a research facility located near Tucson, Ariz.Katja Schulz/Flickr, CC BY
Biosphere 2 is a research facility located near Tucson, Ariz.Katja Schulz/Flickr, CC BYFrom 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 outside Tucson, Arizona, it looks almost like a colony on another planet.
When one of...









