Thor Intermediate Range Ballistic Missile, nicknamed “Tune Up”
A Thor Intermediate Range Ballistic Missile, nicknamed “Tune Up”, prepares to depart from Launch Facility 75-1-1, Dec. 16, 1958, Vandenberg Air Force Base, Calif. Demonstrating operational capability, the successful test was conducted only a year after the base was activated -- and ignited a launch legacy spanning more than five decades. (Courtesy photo/Released)