Kennedy Space Center, Fla. -- An Air Force Reserve pararescueman from the 920th Rescue Wing flies aboard an HH-60G Pave Hawk helicopter as part of a ready response team to NASA astronauts . The reservists are on call during lift off and return of all space shuttle missions. Moments after the Space Shuttle Discovery's safe return from the International Space Station June 14, Rescue crews head south back to Patrick Air Force Base, Fla. (U.S. Air Force Photo/Tech. Sgt. Jeremy Allen)