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U.S. Air Force Airmen from Davis-Monthan Air Force
Summary
U.S. Air Force Airmen from Davis-Monthan Air Force Base, Ariz. stand outside the Biosphere 2 facility in Tucson, Ariz., on Feb. 9, 2013. The facility was designed to test if human beings could sustain life inside a completely enclosed structure. (U.S. Air Force photo by Senior Airman Timothy Moore/Released)
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Date
09/02/2013
Location
Source
Defense Visual Information Distribution Service
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