Arizona Hotel Reservations
Check Out the Biosphere 2 Site
Technically an "Earth systems science research facility," Biosphere 2 is owned by the University of Arizona, and can be found in the small town of Oracle.
The first closed mission at Biosphere 2 was from September 26th, 1991 to September 26th, 1993. Today, the nearly 100 percent glass constructed structure is open for tours, which are guided by University of Arizona employees and other volunteers.
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