Related by context. Frequent words. (Click for all words.) 57 Gagarin flight 57 Yuri Gagarin 57 Gagarin 56 manned spacecraft 56 Baikonur Kazakhstan 56 satellite Sputnik 55 Soyuz rocket 55 Soviet cosmonaut Yuri Gagarin 55 SpaceX Falcon 9 55 Ariane rocket 54 agency Roscosmos 54 spacecraft 54 Shenzhou VII 53 Roskosmos 53 Shenzhou V 53 RSC Energia 53 interplanetary spacecraft 53 Dragon capsule 52 Mars Pathfinder 52 Sputnik satellite 52 spaceplane 52 Ares IX rocket 52 Plesetsk 52 spacecrafts 51 Anatoly Perminov 51 unpiloted 51 Energiya 51 Romanenko 51 Perminov 51 Soyuz capsule 51 PSLV C# 51 Taurus XL rocket 51 space shuttle 51 Baikonur 50 unmanned spacecraft 50 Orion spacecraft 50 Lyndin 50 Russian Soyuz TMA 50 New Horizons spacecraft 50 Yang Liwei 50 manned spaceship 50 cosmonaut 50 Baikonur space 50 Shenzhou VI 50 spaceship 50 robotic spacecraft 50 lunar orbiter 50 Mercury Gemini 49 Baikonur Cosmodrome 49 manned spaceflight 49 orbit 49 Soyuz 49 Roscosmos 49 Russian cosmonaut 49 Soyuz spacecraft 49 Vostochny 49 Discovery STS 48 spaceflights 48 orbiter 48 astronaut Yang Liwei 48 unmanned lunar 48 astronaut Peggy Whitson 48 suborbital flight 48 cosmodrome 48 manned missions 48 Alexander Kaleri 48 Space Station 48 Hubble servicing 48 Popovkin 48 Kazakh steppe 47 Gravity Probe B 47 spokesman Valery Lyndin 47 Oleg Skripochka 47 Russian leased Baikonur 47 Space Shuttle Atlantis 47 Dnepr 47 Gorbunov 47 Deep Impact mission 47 GOCE 47 Soyuz craft 47 Space Shuttle Discovery 47 De Winne 47 infrared telescope 47 Soyuz capsule carrying 47 astronauts 47 International Space Station 47 Russian Soyuz rocket 47 Johannes Kepler 47 VSS Enterprise 47 lunar exploration 47 NASA 47 lunar module 47 Padalka 47 Baikonur cosmodrome 46 Goheung 46 Fyodor Yurchikhin 46 pad #A 46 Korolyov 46 Chilingarov 46 Kondratyev 46 Cassini Huygens