A U.S. Air Force crew chief assigned to the 27th Fighter Wing performs a check on an F-22 Raptor at Joint Base Langley-Eustis, Va., June 27, 2017. The newly built, sun shelters have built-in lights that illuminate the aircraft, all of which are ran solely on solar power. (U.S. Air Force photo/Airman 1st Class Tristan Biese)