Posted: 02/01/2015
An F-35 Lightning II endures freezing temperatures in the 96th Test Wing's McKinley Climatic Laboratory Jan. 27, 2015, at Eglin Air Force Base, Fla. The joint strike fighter has undergone four months of climate testing in the lab to certify the fleet to deploy to any corner of the world. (U.S. Air Force photo/Samuel King Jr.)
