Air Force Staff Sgt. Jeremy Fitzgerald, 60th Logistics Readiness Squadron noncommissioned officer in charge of cryogenic storage, holds a beaker with liquid oxygen in it at Travis Air Force Base, California, Aug. 24, 2022. After the liquid oxygen evaporates, an odor test is conducted to ensure the quality of the order going out is good. Cryogenic storage is home to up to 26 thousand gallons of liquid oxygen and liquid nitrogen stored at negative 297 degrees.

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