Home›1963 in the Soviet Union›Kosmos 21🌐EnglishEnglishEspañolFrançaisItalianoPolskiPortuguêsTiếng ViệtРусскийالعربية中文日本語EntityQ1078290· pop 20· linked from 249 articlesKosmos 21Soviet spacecraftAvailable in 20 languagesEspañol中文日本語РусскийPortuguêsالعربيةArmenianBanglaBulgarianCzechHungarianConnectionsEnvironmental Research SatelliteEntitySyncomEntityCategories1963 in the Soviet Union3MVKosmos satellitesSpacecraft launched in 1963Spacecraft which reentered in 1963Venera program