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While the Soviet Union initially claimed the craft reached the surface intact, re-analysis, including atmospheric occultation data from the American Mariner 5 spacecraft that flew by Venus the day after its arrival, demonstrated that Venus's surface pressure was 75–100 atmospheres, much higher than Venera 4's 25 atm hull strength, and the ...
As the cruise stage flew by Venus, the bus acted as a data relay for the lander before continuing on to a heliocentric orbit.The probe was equipped with a gamma-ray spectrometer, UV grating monochromator, electron and proton spectrometers, gamma-ray burst detectors, solar wind plasma detectors, and two-frequency transmitters which made measurements before, during, and after the Venus flyby.
Venera 14 (called Venus 14 in English) was a probe in the Soviet Venera program for the exploration of Venus. Venera 14 was identical to the Venera 13 spacecraft, built to take advantage of the 1981 Venus launch opportunity. Venera 14 was launched on 4 November 1981 at 05:31:00 UTC, five days after Venera 13 launched on 30 October 1981 at 06:04 ...
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.
First view and clear image of the surface of Venus, taken by the Venera 9 lander on October 22, 1975 The lander was encased in a spherical shell before landing to help protect it from the heat of entry as it slowed from 10.7 kilometres per second (6.6 mi/s) to 150 metres per second (490 ft/s).
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.
Venera 10 (Russian: Венера-10 meaning Venus 10), or 4V-1 No. 661, [4] was a Soviet uncrewed space mission to Venus. It consisted of an orbiter and a lander. It was launched on June 14, 1975, 03:00:31 UTC and had a mass of 5033 kg (11096 lb). [5]
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.