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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 Doppler measurements of the Venera 4 to 7 probes were the first evidence of the existence of zonal winds with high speeds of up to 100 metres per second (330 ft/s, 362 km/h, 225 mph) in the Venusian atmosphere (super rotation). Along with the pressure and temperature data acquired Venera 7 also measured atmospheric composition. [7] [5]
The spacecraft was named Kosmos 96, part of a series typically used for military and experimental satellites in order to cover up the failure. Had it departed Earth's orbit, it would have received the next designation in the Venera series, at the time Venera 4. Kosmos 96 was destroyed when it re-entered the Earth's atmosphere on 9 December 1965 ...
Kosmos 167 (Russian: Космос 167 meaning Cosmos 167), or 4V-1 No.311, was a 1967 Soviet spacecraft intended to explore Venus.A spacecraft launched as part of the Venera programme, Kosmos 167 was intended to land on Venus but never departed low Earth orbit due to a launch failure.
Artificial object Image Country Landing date Landing mass Coordinates Venera 3: Soviet Academy of Sciences Soviet Union March 1, 1966 377 kg (831 lb) [a 1]: Venera 4: Soviet Academy of Sciences Soviet Union: October 18, 1967 : 377 kg (831 lb) : Venera 5: Soviet Academy of Sciences Soviet Union: May 16, 1969 : 410 kg (900 lb) : Venera 6: Soviet Academy of Sciences Soviet Union: May 17, 1969 : ...
Capsule of Venera-4 in Memorial Museum of Astronautics. The descent capsule of Venera 4 entered the atmosphere of Venus on October 18, 1967, making it the first probe to return direct measurements from another planet's atmosphere. The capsule measured temperature, pressure, density and performed 11 automatic chemical experiments to analyze the ...
An American-Iranian journalist who once worked for a US-funded broadcaster is believed to have been detained in Iran, according to his former employer and multiple press freedom groups.
After Venera 4's failure to reach the surface of Venus intact, the next 3MV probes (Venera 5 and 6) were strengthened again, this time to withstand a 450-g (compared to the 300-g entry of Venera 4) re-entry due to the 1969 launch window's higher velocity. The V-70 design took this further, with the capsule being slightly more egg-shaped.