A KC-10 Extender, crewed by Reserve Airmen with the 76th Air Refueling Squadron, creates vapor contrails during a training mission over the East Coast Aug. 4, 2018. The 76th ARS is an Air Force Reserve Command unit located at Joint Base McGuire-Dix-Lakehurst, N.J. (U.S. Air Force photo by Master Sgt. Mark C. Olsen)