Related by context. Frequent words. (Click for all words.) 74 Soviet cosmonaut Yuri Gagarin 71 Yuri Gagarin 58 astronaut Yang Liwei 58 Baikonur Kazakhstan 57 manned spacecraft 57 Yang Liwei 56 Shenzhou V 56 Gagarin 55 Sputnik satellite 54 cosmonaut 53 Ariane rocket 53 spaceship 53 lunar landing 52 Soyuz rocket 51 spacecraft 51 Russian Soyuz TMA 51 Alan Shepard 51 Dennis Tito 51 Shenzhou VII 50 Nie Haisheng 50 Edwin Buzz Aldrin 50 Soyuz capsule 50 lunar orbiter 50 sub orbital 49 Roskosmos 49 spaceplane 49 Baikonur Cosmodrome 49 Russian cosmonaut 49 Julie Payette 49 space shuttle 49 Saturn V 49 SpaceX Falcon 9 49 Mercury Gemini 49 Wernher von Braun 48 spaceflight 48 Shenzhou 48 Skylab 48 Michael Foale 48 Roscosmos 48 Dragon capsule 48 spacecrafts 48 Soyuz 48 Anatoly Perminov 48 Neil Armstrong 48 outer space 47 Sputnik 47 astronaut 47 Soyuz spacecraft 47 Polar Satellite Launch 47 Stardust spacecraft 47 manned spaceflight 47 Russian leased Baikonur 47 ESA astronaut 47 Orion spacecraft 47 lunar rover 47 Mars Pathfinder 47 unmanned lunar 47 spaceflights 47 New Horizons spacecraft 47 orbit 47 International Space Station 46 Shenzhou VI 46 NASA astronaut 46 Oceansat 2 46 unmanned spacecraft 46 lunar orbit 46 shuttle Discovery 46 Ilan Ramon 46 Hubble servicing 46 Anousheh Ansari 46 shuttle Challenger 46 suborbital flight 46 Vostok 46 remote sensing satellite 46 robotic spacecraft 46 Soyuz craft 46 G Madhavan Nair 46 shuttle Atlantis 46 Piers Sellers 46 Baikonur space 46 lunar probe 45 SpaceShipOne 45 Russian Soyuz rocket 45 Robonaut 2 45 lunar module 45 Russian Soyuz spacecraft 45 Perminov 45 cosmodrome 45 Chang'e 45 PSLV 45 June Scobee Rodgers 45 Chandrayaan 45 Satish Dhawan Space 45 Fyodor Yurchikhin 45 NASA astronaut corps 45 Astronauts aboard 45 astronaut Peggy Whitson 45 Christa McAuliffe backup 45 Baikonur 45 tourist Charles Simonyi 45 astronaut Buzz Aldrin