Zond 1 was a 3MV-1 series Venus probes that carried a landing capsule. It failed during cruise phase and passed 100,000 km from Venus on 14 July 1964. April 2, 1964 at 02:42 UTC · Launch Successful Molniya 8K78 — Soviet Space Program, to Venus flyby 1/5, Baikonur Cosmodrome, Republic of Kazakhstan The world's 313th orbital launch attempt, and 20th of 1964. Data: Launch Library 2, The Space Devs. Image via The Space Devs.