April 19, 2012. Space Shuttles Enterprise, left, and Discovery meet nose-to-nose during the Welcome Discovery ceremony at the Smithsonian's Steven F. Udvar-Hazy Center in Chantilly, VA. Photo credit: (NASA/Carla Cioffi - 201204190028HQ)
April 19, 2012. Space Shuttles Enterprise, left, and Discovery meet nose-to-nose at the beginning of a transfer ceremony at the Smithsonian's Steven F. Udvar-Hazy Center in Chantilly, Va. Space shuttle Discovery, the first orbiter retired from NASA’s shuttle fleet, completed 39 missions, spent 365 days in space, orbited the Earth 5,830 times, and traveled 148,221,675 miles will now begin its new mission to educate and inspire. Photo Credit: (NASA/Smithsonian Institution/Carolyn Russo)
The test shuttle Enterprise made its first appearance mated to supportive propellant containers and boosters as it was rolled from the Vehicle Assembly Building at Kennedy Space Center en route to the launch pad, some 3.5 miles away, on May 1, 1979. Enterprise underwent several weeks of fit and function checks on the pad in preparation for STS-1, on which its sister craft Columbia took astronauts John Young and Robert Crippen into space for a 54-hour test mission.