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Soyuz (spacecraft)

Soyuz
Soyuz TMA-7 spacecraft2edit1.jpg
Soyuz spacecraft (TMA version)
Manufacturer RKK Energia
Country of origin Soviet Union, Russia
Operator Soviet space program (1967–91)
Roscosmos (1991 onwards)
Applications Carry cosmonauts to orbit and back; originally intended for Soviet Moonshot
Specifications
Design life Up to six months docked to station
Regime Low Earth orbit (circumlunar spaceflight during early program)
Production
Status In service
First launch Soyuz 1, 1967

Soyuz (Russian: Сою́з IPA: [sɐˈjʉs], Union, as in Сове́тский Сою́з, Sovetsky Soyuz, "Soviet Union") is a series of spacecraft designed for the Soviet space programme by the Korolyov Design Bureau (now RKK Energia) in the 1960s that remains in service today. The Soyuz succeeded the Voskhod spacecraft and was originally built as part of the Soviet Manned Lunar programme. The Soyuz spacecraft is launched on a Soyuz rocket, the most frequently used and most reliable launch vehicle in the world to date. The Soyuz rocket design is based on the Vostok launcher, which in turn was based on the 8K74 or R-7A Semyorka, a Soviet intercontinental ballistic missile. All Soyuz spacecraft are launched from the Baikonur Cosmodrome in Kazakhstan.

The first Soyuz flight was unmanned and started on November 28, 1966. The first Soyuz mission with a crew, Soyuz 1, launched on 23 April 1967 but ended with a crash due to a parachute failure, killing cosmonaut Vladimir Komarov. The following flight was unmanned. Soyuz 3, launched on October 26, 1968, became the program's first successful manned mission. The only other flight to suffer a fatal accident, Soyuz 11, killed its crew of three when the cabin depressurized prematurely just before reentry. These were the only humans to date to have died above the Kármán line. Despite these early incidents, Soyuz is widely considered the world's safest, most cost-effective human spaceflight vehicle, established by its unparalleled length of operational history. Soyuz spacecraft were used to carry cosmonauts to and from Salyut and later Mir Soviet space stations, and are now used for transport to and from the International Space Station (ISS). At least one Soyuz spacecraft is docked to ISS at all times for use as an escape craft in the event of an emergency. The spacecraft is intended to be replaced by the six-person Federation spacecraft.


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