Biosphere 2 first became famous as the human experiment of the 1990s that sealed a group of eight researchers inside its 3 acres of diverse ecosystems for two long years. The goal was to experiment ...

(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 ...