Buzz Aldrin, a former astronaut, and Col. Gentry Boswell, 28th Bomb Wing commander, eat lunch at the annual base picnic at Ellsworth Air Force Base, S.D., July 10, 2015. Aldrin's tour of Ellsworth was one stop, of many during his trip to South Dakota. (U.S. Air Force photo by Airman 1st Class Denise M. Nevins/Released)