Sir Mix-a-LOX
Senior Airman Clark Hoover-Hill, a 455th Expeditionary Aircraft Maintenance Squadron electrical and environmental systems journeyman who is deployed from Davis-Monthan Air Force Base, Ariz., services the liquid oxygen on an EC-130 aircraft at Bagram Airfield, Afghanistan, Nov. 19, 2015. When exposed to the open air, the minus 297 degree liquid oxygen evaporates into a gas. (U.S. Air Force photo/Tech. Sgt. Robert Cloys)