KENNEDY SPACE CENTER, FLA. — At NASA's Kennedy Space Center Shuttle Landing Facility, the air crew for the U.S. Air Force Thunderbirds Demonstration Squadron line up at left for a walkdown with the pilots, at right. The squadron is part of an aerial salute for the World Space Expo held at the center's Visitor Complex. Other aircraft joining in the expo salute include the U.S. Navy F-18 Super Hornets, U.S. Air Force F-22 Raptor, U.S. Air Force F-15 Eagle, P-51 Mustang Heritage Flight, the U.S. Air Force 920th Rescue Wing, which was responsible for Mercury and Gemini capsule recovery, and the U.S. Army Golden Knights demonstrating precision skydiving. The World Space Expo Nov. 1-4 was an event commemorating humanity's first 50 years in space while looking forward to returning people to the moon and exploring beyond. The expo showcased various panels, presentations and educational programs. It also was a part of NASA's 50th anniversary celebrations, highlighting the 45th Anniversary of the Mercury Program celebration featuring original NASA astronauts John Glenn and Scott Carpenter and the Pioneering Women of Aerospace forum featuring Eileen Collins and other prominent female space veterans. The agency was founded Oct. 1, 1958. Photo credit: NASA/George Shelton