Wingtip sunset
The Kansas sun sinks below the horizon off the wing of a KC-135 Stratotanker assigned to McConnell Air Force Base, Kan., July 11, 2013. The KC-135 was being operated by an aircrew made up of Reservists from the Air Force Reserve 931st Air Refueling Group, who were conducting an air refueling training mission. (U.S. Air Force photo by Senior Master Sgt. Ray Lewis)