Soviet 3MV-1A No.2 (Zond Venus test probe) intended as a Venus flyby/lander engineering flight. Molniya 8K78 from Baikonur LC-1 failed on 19 February 1964 when the third stage lost thrust; the spacecraft never reached Earth parking orbit.
- Outcome
- Failure
- Orbit
- Venus flyby
- Payload to orbit
- Did not reach orbit
- Flight
- 15th
- of 40 Molniya 8K78 flights
- Date and time
- 19 February 1964, 05:47 UTC
- Rocket
- Molniya 8K78
- Builder
- RKK Energia
- Launch site
- 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Robotic Exploration
- Launches in 1964
- 9th of 100