Ye-6 series probe designed to land on the Moon. Failed to reach orbit. April 20, 1964 at 08:08 UTC · Launch Failure Molniya 8K78 — Soviet Space Program, to Lunar Orbit 1/5, Baikonur Cosmodrome, Republic of Kazakhstan The world's 317th orbital launch attempt, and 24th of 1964. Program: Luna Data: Launch Library 2, The Space Devs. Image via The Space Devs.