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Venera 4V-2 (Russian: Венера 4В-2) was a series of two identical spacecraft sent to Venus by the Soviet Union, consisting of Venera 15 and Venera 16. [1] Both uncrewed orbiters were to map the surface of Venus using high resolution imaging systems. The spacecraft were identical and based on modifications to the earlier Venera space probes.
However, as the spacecraft's data probes had failed upon atmospheric penetration, no data from within the Venusian atmosphere were retrieved from the mission. On 18 October 1967, Venera 4 became the first spacecraft to measure the atmosphere of another planet. This spacecraft first showed the major gas of Venus's atmosphere to be CO 2. [5]
Venera 8 (Russian: Венера-8 meaning Venus 8) was a probe in the Soviet Venera program for the exploration of Venus and was the second robotic space probe to conduct a successful landing on the surface of Venus. [2] Venera 8 was a Venus atmospheric probe and lander.
Venera 4 (Russian: Венера-4, lit. 'Venus-4'), also designated 4V-1 No.310, was a probe in the Soviet Venera program for the exploration of Venus.The probe comprised a lander, designed to enter the Venusian atmosphere and parachute to the surface, and a carrier/flyby spacecraft, which carried the lander to Venus and served as a communications relay for it.
The Venera 15 and 16 spacecraft were identical and were based on modifications to the orbiter portions of the Venera 9 and Venera 14 probes. Each spacecraft consisted of a 5 metres (16 ft) long cylinder with a 0.6 m (2.0 ft) diameter, 1.4 m (4.6 ft) tall parabolic dish antenna for the synthetic aperture radar at one end.
The Venera 15 and 16 spacecraft were identical and were based on modifications to the Venera 9 orbiter and the Venera 14 carrier spacecraft. Each spacecraft consisted of a 5 m (16 ft) long cylinder with a 0.6 m (2.0 ft) diameter, 1.4 m (4.6 ft) tall parabolic dish antenna for the synthetic aperture radar (SAR) at one end. A 1-meter diameter ...
Venera 7 (Russian: Венера-7, lit. 'Venus 7') was a Soviet spacecraft, part of the Venera series of probes to Venus . When it landed on the Venusian surface on 15 December 1970, it became the first spacecraft to soft land on another planet and the first to transmit data from there back to Earth .
Spacecraft failure Flew past Venus on 27 February 1966, closest approach at 02:52 UTC. Communications lost after flyby, before any data could be returned. [12] Molniya-M: Venera 3 (3MV-3 No.1) 16 November 1965: OKB-1 Soviet Union: Lander Spacecraft failure Communications lost as soon as spacecraft entered atmosphere on 1 March 1966, no data ...