Shown is the entrance to Air Force Research Laboratory’s Research Altitude Chamber 2 at Wright Patterson Air Force Base, Ohio. Equipment up to the size of a Humvee can fit inside the RAC. The Air Force Research Laboratory operates four RACs at the base, three of which were certified in March 2022, for manned research up to 50,000 feet, a certification found nowhere else in the Department of Defense. (U.S. Air Force photo by Jason Schaap)

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Photo by: Jason Schaap |  VIRIN: 220415-F-UF543-0003.JPG