The Soviet Union also made offers of joint human spaceflight on a commercial basis to the United Kingdom and Japan resulting in the first British and Japanese cosmonauts. In the early 1980s an offer was made to Finland as well, with test pilot Jyrki Laukkanen mentioned as one of potential Finnish cosmonauts. The pilots of the Test Flight (Koelentue) refused on the grounds that participation would not benefit the Flight or test pilot activity in any way. No further offers were made to Finland regarding the matter.
1979 September 26 - Vertikal-8 Solar Ultraviolet/Solar X-ray mission.
1979 November 1 - Interkosmos 20. (Czechoslovak Socialist Republic, the German Democratic Republic, the Hungarian People's Republic, and the Socialist Republic of Romania).
1981 - Re-entry Vehicle Test mission.
A commemorative coin issued in Mongolia
1981 February 6 - Interkosmos 21 - (Czechoslovak Socialist Republic, the German Democratic Republic, the Hungarian People's Republic, and the Socialist Republic of Romania)
1981 August 7 - Interkosmos 22 "Bulgaria-1300" (People's Republic of Bulgaria).
1981 August 28 - Vertikal-9 Solar Ultraviolet/Solar X-ray mission.
1981 September 21 - Oreol 3 - Developed by Soviet and French specialists under the joint Soviet-French project 'Arkad-3'.
1985 April 26 - Interkosmos 23 - Developed by scientists and specialists of the USSR and the Czechoslovak Socialist Republic.
1986 December 18 - Kosmos 1809
1989 September 28 - Magion 2 - Magion 2 forms a part of the scientific programme of Interkosmos 24 (project Aktivnyj) Execution of the scientific programme of the 'Aktivny' project in conjunction with Interkosmos-24, permitting simultaneous spatially separating investigations of plasma processes in circumterrestrial space.
1989 September 28 - Interkosmos 24 - US participation, in cooperation with Bulgaria, Czechoslovakia, the German Democratic Republic, Hungary, Poland, and Romania (the international scientific project entitled 'Aktivny'). Carrying the Czechoslovak Magion-2 satellite.
1991 December 18 - Interkosmos 25 - experiments from Germany, Romania, Bulgaria, Poland, Hungary. Comprehensive study of the effects of artificial impact of modulated electron flows and plasma beams on the ionosphere and magnetosphere of the Earth (forming part of the Apex international scientific project, conducted jointly with Bulgaria, Czechoslovakia, Germany, Hungary, Poland, and Romania.)
1991 December 28 - Magion 3 
1994 March 2 - Interkosmos 26 - Conduct of comprehensive investigations of the sun under the Coronas-I international project developed by Russian and Ukrainian experiments in cooperation with specialists from Poland, the Czech Republic, the Slovak Republic, Bulgaria, France, and the United Kingdom.
In general, most of the films associated with programs are propaganda short TV documents and relations from that era. The two exceptions include (largely fictionalised) Interkosmos from 2006, and cooperation document from 2009 (in Polish) titled "Lotnicy Kosmonauci"("Aviators-Cosmonauts").
^Pinkham, Sophie (2019-07-16). "How the Soviets Won the Space Race for Equality". The New York Times. ISSN 0362-4331. Retrieved 2021-06-08.
^"Jyrki Laukkasesta piti tulla Suomen ensimmäinen kosmonautti – kieltäytyi kutsusta, kun siitä ei olisi ollut mitään hyötyä" (in Finnish). Yle.fi. Retrieved July 26, 2020.
^"Jyrki Laukkanen" (in Finnish). Suomen Tietokirjailijat ry. Retrieved July 26, 2020.
^Roberts, Andrew Lawrence (2005). From Good King Wenceslas to the Good Soldier Švejk: a dictionary of Czech popular culture. Budapest: Central European University Press. p. 141. ISBN 963-7326-26-X.
^Bunch, Bryan; Hellemans, Alexander (2004). The history of science and technology: a browser's guide to the great discoveries, inventions, and the people who made them, from the dawn of time to today. New York: Houghton Mifflin Harcourt. p. 679. ISBN 0-618-22123-9.
^"FilmPolski". Filmpolski.pl. Retrieved 10 August 2017.
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