Related by context. Frequent words. (Click for all words.) 66 Yuri Gagarin 65 cosmonaut 54 Korolyov 53 cosmonauts 51 Soyuz 50 Smirnov 48 Sputnik 48 Shenzhou 47 Mission Control 47 Kursk 47 astronauts 46 spacecraft 46 Baikonur 46 Chang'e 45 astronaut 45 Stalin 45 Lenin 44 Yeltsin 44 Chandrayaan 44 manned spaceflight 44 Kirov 44 orbiter 43 Smolensk 43 space shuttle 43 Pushkin 43 Krasnoyarsk 43 Solzhenitsyn 43 Nasa 42 Medvedev 42 Sergei 42 Bolshevik Revolution 42 Perm 42 Space Shuttle 42 Vasily 42 Soyuz capsule 42 Soviet 42 Space Agency 42 Neil Armstrong 42 Garriott 42 Novosibirsk 42 Vyacheslav 42 Khrushchev 41 Russian cosmonauts 41 ISRO 41 spacesuit 41 Joseph Stalin 41 NASA 41 Baikonur Cosmodrome 41 Nizhny Novgorod 41 spaceship 41 Fradkov 41 Vladimir Lenin 41 Rossiya 41 Astronaut 41 Space Shuttle Discovery 40 Nikolay 40 Irkutsk 40 liftoff 40 Luzhkov 40 human spaceflight 40 spaceflight 40 Chiao 40 Simonyi 40 Oleg 40 Almaty 40 Krasnodar 40 Ivanov 40 Soyuz TMA 40 capsule 40 Pravda 40 SpaceShipOne 40 Heydar Aliyev 39 Noguchi 39 manned missions 39 Politkovskaya 39 Volgograd 39 Soviet era 39 orbit 39 Moscow 39 lunar exploration 39 Anna Politkovskaya 39 shuttle Atlantis 39 International Space Station 39 Morozov 39 Space Station 39 Hayabusa 39 Alan Shepard 39 shuttle missions 39 Rutan 39 Fincke 39 ITAR TASS 39 Leningrad 39 space shuttle Discovery 39 Niyazov 39 Copernicus 38 Nazarbayev 38 Grozny 38 Chelyabinsk 38 Putin 38 Voronezh 38 Soyuz spacecraft