High Quality Content by WIKIPEDIA articles! Valeri Nikolayevich Kubasov (Russian: Валерий Николаевич Кубасов; born 7 January 1935 in Vyazniki) 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, Soviet Soyuz module landed in Kazakhstan at-5:51pm and Valeriy Kubasov was the first to exit the craft. He was also involved in the development of the Mir space station. He retired from the Soviet space program in March 1993.