NASA Administrator Charles Bolden signs a document transferring space shuttle Discovery to the Smithsonian Institution as G. Wayne Clough, Secretary of the Smithsonian Institution, second from left, John R. Dailey, director of the National Air and Space Museum, right, and former U.S. Senator and astronaut John Glenn, left, look on during a ceremony commemorating the transition of space shuttle Discovery to the Smithsonian National Air and Space Museum, Thursday, April 19, 2012, at the Steven F. Udvar-Hazy Center in Chantilly, Va. Discovery, the first orbiter retired from NASAâs shuttle fleet, completed 39 missions, spent 365 days in space, orbited the Earth 5,830 times, and traveled 148,221,675 miles. Discovery is taking the place of shuttle Enterprise which is moving to the Intrepid Museum in New York. Photo Credit: (NASA/Paul E. Alers)
