Venera 3
| Mission type | Venus atmospheric probe with flyby spacecraft | 
|---|---|
| Operator | OKB-1 | 
| COSPAR ID | 1965-092A | 
| SATCAT no. | 1733 | 
| Mission duration | 105 days | 
| Spacecraft properties | |
| Spacecraft | 3MV-3 No.1 | 
| Manufacturer | Lavochkin | 
| Launch mass | 960 kg (2,120 lb) | 
| Landing mass | 377 kg (831 lb) | 
| Dimensions | 4.2 m × 1.1 m (13.8 ft × 3.6 ft) | 
| Start of mission | |
| Launch date | 16 November 1965, 04:19 UTC | 
| Rocket | Molniya | 
| Launch site | Baikonur 31/6 | 
| Orbital parameters | |
| Reference system | Heliocentric | 
| Perihelion altitude | 0.68 AU | 
| Aphelion altitude | 0.99 AU | 
| Inclination | 4.29° | 
| Period | 277 days | 
| Venus impact (failed landing) | |
| Impact date | 1 March 1966 | 
| Impact site | 20°N 80°E / 20°N 80°E | 
Venera 3 (Russian: Венера-3 meaning Venus 3) was a Venera program space probe that was built and launched by the Soviet Union to explore the surface of Venus. It was launched on 16 November 1965 at 04:19 UTC from Baikonur, Kazakhstan, USSR. The probe comprised an entry probe, designed to enter the Venus atmosphere and parachute to the surface, and a carrier/flyby spacecraft, which carried the entry probe to Venus and also served as a communications relay for the entry probe.