Cryogenics: pushing the limits
U.S. Air Force Airman 1st Class William Spears, 31st Logistics Readiness Squadron fuels facilities specialist, prepares a liquid oxygen cart at Aviano Air Base, Italy, Oct. 17, 2023. Cryogenics, a section of the Fuels Management Flight, focuses on liquid oxygen, which in a gas form, is put into aircraft and used by pilots as breathable oxygen when at higher altitudes. (U.S. Air Force photo by Airman 1st Class Synsere Howard)