. "the first launch" . "Hail Columbia!" . . . "0084043" . "maiden voyage" . "1981-04-14" . "first orbital flight of NASA Space Shuttle Program" . . . . "its first launch" . "36" . "flew for the first time" . . . . . . "first Space Shuttle flight" . "12399" . "countdown demonstration test for STS-1" . "first orbital test flight" . "1981-04-12" . . . "first flight of the Space Shuttle" . "First space shuttle launched" . "first Space Shuttle launch countdown of ''Columbia''" . "first Space Shuttle mission" . "first launch" . "STS-1" . "1981-034A" . "first mission" . "STS-1" . "first flight of the space shuttle in 1981" . . "first flight" . . . . . "first shuttle flight" . "first" . "its maiden flight" . "STS-1#Pad fatalities" . "12 April 1981" . "Space Transportation System-1" . . "195653.0" . "1981" . "first space shuttle mission" . . . . . .