Tech. Sgt. Corey Briggs (right), 455th Expeditionary Logistics Readiness Squadron cryogenics, and Staff Sgt. Nathan Knight (left), 455th Expeditionary Logistics Readiness Squadron cryogenics supervisor, handle a sample of liquid oxygen, Bagram Airfield, Afghanistan, Sept. 14, 2016. Once the sample is collected, cryogenics technicians perform an odor test to ensure the liquid oxygen is good for use. ( Air Force photo by Senior Airman Justyn M. Freeman)

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Size: 6765px × 4832px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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