|File:Valeriy N. Kubasov ASTP portrait - cropped.jpg|
|Born||Valeri Nikolayevich Kubasov
7 January 1935
Vyazniki, Vladimir Oblast, Soviet Union
|Died||19 February 2014
Time in space
|18d 17h 57m|
|Selection||Civilian Specialist Group 2|
|Missions||Soyuz 6, Soyuz 19, Soyuz 36|
|Retirement||November 13, 1993|
Valeri Nikolayevich Kubasov (Russian: Вале́рий Никола́евич Куба́сов; 7 January 1935 – 19 February 2014) was a Soviet cosmonaut who flew on two missions in the Soyuz programme as a flight engineer: Soyuz 6 and Soyuz 19 (the Apollo–Soyuz mission), and commanded Soyuz 36 in the Intercosmos programme. On 21 July 1975, the Soyuz 7K-TM module used for ASTP landed in Kazakhstan at 5:51 p.m. and Kubasov was the first to exit the craft. Kubasov performed the first welding experiments in space, along with Georgy Shonin.
Kubasov evaded death twice during his space career. He was part of the crew that was originally intended to fly Soyuz 2, which was found to have the same faulty parachute sensor that resulted in Vladimir Komarov's death on Soyuz 1 and was later launched without a crew. Later, he was grounded for medical reasons before the Soyuz 11 flight, which killed the crew when the capsule was accidentally depressurised by a faulty valve.
Kubasov was born January 7, 1935, in Vyazniki, Vladimir Oblast, former Soviet Union. After finishing secondary school in 1952, he graduated from the Moscow Aviation Institute in 1958 as an aerospace engineer and reported to work at the bureau led by Sergei Korolev. Initially focusing on ballistic studies, Kubasov worked on the design of the Voskhod capsule. He authored several studies on the calculation of spaceship trajectories, and acquired a Master of Science degree in Engineering.
In May 1964, while working for Korolev, Kubasov became one of a handful of civilian candidates who passed preliminary medical screening for one of the Soviet Voskhod missions. Two years later, after some relaxation of the existing rules, Kubasov along with Georgy Grechko and Vladislav Volkov, were officially accepted into the newly established civilian cosmonaut corps.
Kubasov's first space mission, the five-day Soyuz 6 flight in October 1969, was unsuccessful due to technical issues as space vehicles never met up. During Soyuz 6 mission Kubasov and Georgy Shonin performed the first welding experiment in space. The Vulcan furnace required internal hatches between the orbital and descent modules to be sealed, with the welding performed automatically, overseen by Kubasov. Samples of stainless steel and titanium were welded together, then cut, after which the hatches were opened for Kubasov to perform a hand-held welding. However, in 1990 it became known that Vulcan’s low-pressure compressed arc had inadvertently targeted a beam at the orbital module wall. Upon opening the hatch, the cosmonauts discovered the damage and, fearing a depressurization, returned to the descent module.
In 1971 Kubasov was almost launched aboard the ill-fated Soyuz 11 mission, he was among the prime crew alongside Alexei Leonov. Medics from the Institute for Biomedical Problems in Moscow found a swelling on Kubasov’s right lung. Fearing the onset of tuberculosis, the entire Soyuz 11 prime crew was grounded and replaced by the backup: Georgy Dobrovolsky, Vladislav Volkov and Viktor Patsayev. In his memoir Two Sides of the Moon Leonov would later write: "It turned out later, that [Kubasov] was allergic to a chemical insecticide used to spray trees".
Apollo–Soyuz Test Project became Kubasov's second space mission and he was a flight engineer on it. Kubasov spent several hours in the Apollo command and docking modules. During this project Kubasov told the U.S. President Gerald Ford in a TV linkup, that they got "good space food... some juice, some coffee and a lot of water".
Kubasov's last spaceflight was aboard Soyuz 36 in 1980. During this flight, the Soyuz transported the crew that included Bertalan Farkas, the first Hungarian astronaut. Kubasov retired as a cosmonaut on 13 November 1993.
Kubasov was awarded:
- Twice Hero of the Soviet Union (1969, 1975)
- Pilot-Cosmonaut of the USSR (1969)
- Three Orders of Lenin (1969, 1975, 1980)
- Medal "For Merit in Space Exploration" (2011)
- Medal "Veteran of Labour" (1985)
- Tsiolkovsky Gold Medal of the Academy of Sciences of the USSR 
- Yuri Gagarin Gold Medal
- Hero of the Hungarian People's Republic
- Gold medal "For Merit in the Development of Science and Humanity" (Czechoslovakia)
- Medal "People's Technicist" (Yugoslavia)
- "Valery Kubasov". Britannica. Retrieved 21 February 2014.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Robert Pearlman. "Cosmonaut Valery Kubasov, Apollo-Soyuz Crewmember, Dies at 79". Space.com. Retrieved 21 February 2014.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- "Valery N. Kubasov". New Mexico Museum of Space History. Retrieved 21 February 2014.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Evans, Ben. "Valeri Kubasov, Veteran ASTP Cosmonaut, Dies Aged 79". AmericaSpace. Retrieved 21 February 2014.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Скончался участник программы "Союз-Аполлон" космонавт Валерий Кубасов (in Russian). RIA Novosti. 20 February 2014. Retrieved 20 February 2014.CS1 maint: unrecognized language (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Pearlman, Robert. "Cosmonaut Valery Kubasov, Apollo-Soyuz crewmember, dies at 79". collectSPACE. Retrieved 20 February 2014.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Биография Валерия Кубасова (in Russian). RIA Novosti. Retrieved 21 February 2014.CS1 maint: unrecognized language (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- КУБАСОВ Валерий Николаевич (in Russian). Энциклопедия "Космонавтика". Retrieved 21 February 2014.CS1 maint: unrecognized language (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
|Wikimedia Commons has media related to [[commons:Lua error in Module:WikidataIB at line 506: attempt to index field 'wikibase' (a nil value).|Lua error in Module:WikidataIB at line 506: attempt to index field 'wikibase' (a nil value).]].|
- Valeri Kubasov at the Internet Movie Database
- Biography of Valeriy Nikolayevich Kubasov at NASA
- Apollo-Soyuz Test Project Overview
- Chronology of Apollo-Soyuz Test Project
- Apollo-Soyuz Test Project Image Gallery
- Apollo-Soyuz Drawings and Technical Diagrams
- The official website of the city administration Baikonur - Honorary citizens of Baikonur