Ye-6 series probe designed to land on the Moon. Failed to achieve orbit. April 10, 1965 at 08:39 UTC · Launch Failure Molniya 8K78 — Soviet Space Program, to Lunar Orbit 1/5, Baikonur Cosmodrome, Republic of Kazakhstan The world's 426th orbital launch attempt, and 33rd of 1965. Program: Luna Data: Launch Library 2, The Space Devs. Image via The Space Devs.