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Soyuz 7K-OK
Soyuz 7K-OK was the first operational version of the Soviet Soyuz spacecraft, a three-seat vehicle flown between 1966 and 1970 for rendezvous and docking in low Earth orbit.
Soyuz 7K-OK (Союз 7К-ОК)
Soyuz 7K-OK (Союз 7К-ОК) was the first operational Soviet Soyuz spacecraft, a three-seat orbital vehicle that flew from 1966 to 1970 and performed the world's first automatic docking.
Soyuz 7K-T
Soyuz 7K-T was the second-generation Soviet crewed spacecraft, developed from the 7K-OK as a ferry for the Salyut space stations and flown from 1973 to 1981.
Soyuz 7K-T No.39
Soyuz 7K-T No.39, known as Soyuz 18a or the April 5 Anomaly, was a failed 1975 Soviet launch to Salyut 4 from which cosmonauts Lazarev and Makarov survived.
Soyuz 7K-TG
Soyuz 7K-TG, GRAU index 11F615A15, was the first-generation Soviet Progress cargo spacecraft, flying 43 successful resupply missions to Salyut 6, Salyut 7, and Mir from 1978 to 1990.
Soyuz 9
Soyuz 9 (Союз-9) was a Soviet spaceflight launched in June 1970 that kept cosmonauts Andrian Nikolayev and Vitaly Sevastyanov in orbit for a record 18 days, testing prolonged weightlessness.
Soyuz Gas Pipeline
The Soyuz gas pipeline (Russian: Союз, "Union"), also called the Orenburg–Western Border pipeline, carries natural gas from Orenburg, Russia, to Uzhhorod, Ukraine, at the Slovak border.
Soyuz MS
Soyuz MS, meaning Modified Systems, is the current version of Russia's Soyuz crew spacecraft, operated by Roscosmos for carrying crews to and from the International Space Station since 2016.
Soyuz MS-27
Soyuz MS-27 was a crewed Russian Soyuz spacecraft that launched in April 2025 carrying Sergey Ryzhikov, Alexey Zubritsky, and NASA astronaut Jonny Kim to the International Space Station.
Soyuz MS-28
Soyuz MS-28 was a Russian Soyuz flight to the International Space Station launched in November 2025, carrying NASA astronaut Chris Williams and Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev.
Soyuz MS-29
Soyuz MS-29 was a 2026 Russian Soyuz flight to the International Space Station carrying NASA astronaut Anil Menon and Roscosmos cosmonauts Pyotr Dubrov and Anna Kikina.
Soyuz MS-30
Soyuz MS-30 is a planned Russian crewed spaceflight to the International Space Station, launching in March 2027 with cosmonauts Dmitri Petelin and Konstantin Borisov and NASA astronaut Deniz Burnham.
Soyuz T
Soyuz T was the third generation of Soviet Soyuz crewed spacecraft, in service from 1979 to 1986, carrying three-person crews to the Salyut 6 and Salyut 7 stations.
Soyuz TM
Soyuz TM was a Soviet and Russian crewed spacecraft, an upgraded Soyuz-T that carried crews to Mir from 1987 to 2001 and flew to the ISS four times.
Soyuz TMA
Soyuz TMA is a version of the Russian Soyuz spacecraft, in use since 2002, that carried crews to the International Space Station and served as its emergency crew return vehicle.
Soyuz-2-1A
Soyuz-2-1A, also written Soyuz-2.1a (Союз-2.1а), is a Russian three-stage medium-lift launch vehicle first flown from Plesetsk in 2004, still flying crewed Soyuz and Progress missions to the International Space Station.
Soyuz-2-1B
Soyuz-2-1B, or Союз-2.1б, is a Russian medium-lift launch vehicle, first flown in 2006, with an upgraded RD-0124 third-stage engine lifting 8,300 kg to low Earth orbit.
Soyuz-ST-B
Soyuz-ST-B is the European version of the Soyuz-2.1b rocket, flown commercially by Arianespace from the Guiana Space Centre between 2011 and 2022, notably for Galileo satellites.
Soyuz-U
Soyuz-U is a Soviet and Russian three-stage medium-lift launch vehicle that flew from 1973 to 2017, launching crewed Soyuz spacecraft, Progress cargo ships, and reconnaissance satellites.
Soyuz-U-PVB
The Soyuz-U-PVB was a Soviet and Russian orbital launch vehicle, a fire-safety-modified version of the Soyuz-U that flew 74 times between 1984 and 2009, mostly from Plesetsk.
Soyuz-U2
Soyuz-U2 (Союз-У2) was a Soviet and Russian three-stage launch vehicle, a Soyuz-U variant whose core stage burned syntin instead of kerosene, flying from 1982 to 1995.
SP 63.13330
SP 63.13330 (СП 63.13330.2018), "Concrete and Reinforced Concrete Structures. General Provisions," is the Russian national design code for concrete structures, in force since June 2019.
SP Group (Singapore)
SP Group, formally Singapore Power, is a Singapore utilities company, wholly owned by Temasek Holdings, that owns and operates Singapore's electricity and gas networks, serving about 1.7 million customers.
Space (punctuation)
A space is the blank character or gap inserted between words and around punctuation marks to separate them visually, with Unicode defining variants such as the non-breaking, thin, and hair spaces.
Space adaptation syndrome
Space adaptation syndrome, also called space sickness or space motion sickness, causes nausea and disorientation in up to 73% of space travelers during the first days of spaceflight.
Space Age
The Space Age is the historical period opened by the Soviet Union's launch of Sputnik 1, the first artificial satellite, on October 4, 1957, extending to today.
Space Alliance
The Space Alliance is a strategic partnership founded in 2005 between Leonardo and Thales, combining their joint ventures Telespazio and Thales Alenia Space as one of Europe's two satellite primes.
Space Analog for the Moon and Mars
Space Analog for the Moon and Mars (SAM) is a sealed, pressurized habitat at the University of Arizona's Biosphere 2 in Oracle, testing bioregenerative life support for lunar and Mars missions.
Space bar
The space bar, or space key, is the longest key on a computer keyboard, typically 6.25U wide on ANSI boards, entering a space character and carrying shortcuts.
Space blanket
A space blanket, also called an emergency or Mylar blanket, is a thin aluminized plastic sheet that reflects body heat; NASA developed it in 1964 for spacecraft insulation.