Jupiter-C Missile No. 27

The Jupiter-C Missile No. 27 assembly at the Army Ballistic Missile Agency, Redstone Arsenal, in Huntsville, Alabama. The Jupiter-C was a modification of the Redstone Missile and was originally developed as a nose-cone re-entry test vehicle for the Jupiter Intermediate Range Ballistic Missile (IRBM). Jupiter-C successfully launched the first U.S. satellite, Explorer 1, on Jan. 31, 1958.