Col. Alden Hilton, United States Air Force School of Aerospace Medicine commander, Lt. Gen. Dorothy Hogg, Air Force Surgeon General, Maj. Gen. William Cooley, Air Force Research Laboratory commander, and Brig. Gen. Mark Koeniger, 711th Human Performance Wing commander, pose just before cutting the ribbon during a ceremony Aug. 2 in USAFSAM to mark the full operational capability of the Department of Defense’s only human-rated centrifuge. (U.S. Air Force photo by Richard Eldridge)