An intended lunar orbiter probe. The vehicle failed during launch. September 25, 1960 at 15:13 UTC · Launch Failure Atlas-Able — United States Air Force, to Lunar Orbit Launch Complex 12, Cape Canaveral SFS, FL, USA The world's 77th orbital launch attempt, and 23rd of 1960. Data: Launch Library 2, The Space Devs. Image by United States Air Force (Department of Defense Image Use Policy) via The Space Devs.