110113_Kadlubowski_BiosphereII_02
Tropical rainforest inside Biosphere 2 in Oracle, Arizona. Edward P. Bass, bought the property in 1984 and began construction of the current facility in 1986 to research and develop self-sustaining space-colonization technology. Two missions, between 1991 and 1994, sealed Biospherians inside the glass enclosure to measure survivability. Biosphere 2 is now managed by The University of Arizona.