Share the knowledge!
Key Facts In This Video
Biosphere 2 is a 3.14-acre research facility in the Arizona desert, and the largest closed system ever created. 00:35
Biosphere 2 contains a gigantic, 40,000-pound (20-ton) "lung" to help the system deal with changes in air temperature. 07:08
One project inside Biosphere 2 is attempting to develop greenhouses that could sustain a single human astronaut for one year. 13:15
Wake up with the smartest email in your inbox.
Our best articles a few times a week.