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The Venera 12 (Russian: Венера-12 meaning Venus 12) was an uncrewed Soviet space mission designed to explore the planet Venus. Venera 12 was launched on 14 September 1978 at 02:25:13 UTC . [ 3 ]
Venera 4 was the first successful probe, and showed that CO 2 is the main component in Venus' atmosphere. [15] [5] Venera 7 found the temperature and pressure data as well as the atmospheric composition. [5] [16] Venera 8 measured the K, U, and Th on the surface through gamma-ray analysis. [5]
First stage accidentally shut down T+128 seconds due to false alarm from pressure gauge. 18 August 1970 03:45 Proton-K 8K82K 246-01 Site 81/23 Successful 82-EV: Suborbital: Test flight Investigation into high failure rate of Proton launches 12 September 1970 13:35 Proton-K/D 8K82K/11S824 248-01 Site 81/23 Successful Luna 16 (Luna E-8-5 #406)
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 : ...
A narrow-gauge railway system designed by John Barraclough Fell was initially proposed. In 1879, this was dropped in favour of a design by the engineering firm of Wells-Owen & Elwes, London . In 1880, the newspaper The Malta Standard reported that "in a short space of time, the inhabitants of these Islands may be able to boast of possessing a ...
The chamber was configured to accept the proprietary belted cartridges as well as commercial 12 gauge rounds and the barrel could be fitted with a choke or choked barrel extension. The carry handle covers the cocking handle similar to the AR-10, and housed an optical sight which could be converted to a rail sight.
The Pioneer Venus Orbiter, also known as Pioneer Venus 1 or Pioneer 12, was a mission to Venus conducted by NASA as part of the Pioneer Venus project. Launched in May 1978 atop an Atlas-Centaur rocket, the spacecraft was inserted into an elliptical orbit around Venus on December 4, 1978. It returned data from Venus until October 1992. [2] [4]
The SIGNE 2 detectors were simultaneously flown on Venera 12 and Prognoz 7 to allow triangulation of gamma ray sources. Before and after Venus flyby, Venera 11 and Venera 12 yielded detailed time-profiles for 143 gamma-ray bursts, resulting in the first ever catalog of such events. The last gamma-ray burst reported by Venera 11 occurred on ...