Related by context. Frequent words. (Click for all words.) 66 astronaut Yang Liwei 64 Yang Liwei 60 Shenzhou VII 59 Nie Haisheng 59 Soviet cosmonaut Yuri Gagarin 57 manned spacecraft 55 Alexander Kaleri 54 Shenzhou V 54 Shenzhou VI 54 Baikonur Kazakhstan 53 NASA astronaut 53 astronaut 52 lunar orbiter 52 Russian cosmonaut Yuri Malenchenko 52 Jiuquan Satellite Launch 51 Peggy Whitson 51 astronaut Peggy Whitson 51 cosmonaut 50 Shenzhou 50 Julie Payette 50 taikonauts 50 Discovery STS 50 Fyodor Yurchikhin 50 Virgin Atlantic GlobalFlyer 50 Soyuz capsule carrying 50 astronaut Julie Payette 50 Ariane rocket 50 Russian leased Baikonur 50 Soyuz rocket 49 Soyuz FG rocket 49 Yuri Gagarin 49 International Space Station 49 Koichi Wakata 49 Eyharts 48 Xichang 48 unmanned lunar 48 Malenchenko 48 Astronaut Buzz Aldrin 48 Commander Peggy Whitson 48 Oleg Kononenko 48 Gagarin flight 48 Messenger spacecraft 48 tourist Charles Simonyi 48 Oleg Skripochka 48 Russian Soyuz TMA 48 Mike Melvill 48 Piers Sellers 48 Tim Kopra 47 Russian cosmonaut 47 spaceflight 47 cosmonauts 47 Shuttle Discovery 47 Sandra Magnus 47 Astronauts aboard 47 orbit 47 spacesuit 47 Dennis Tito 47 Alan Shepard 47 Jiuquan 47 astronauts 47 Space Shuttle Endeavour 47 JCSAT 47 Perminov 47 Baikonur Cosmodrome 47 BAIKONUR Kazakhstan 47 Greg Chamitoff 47 Russian cosmonauts 47 Space shuttle Discovery 47 orbiting laboratory 47 ESA astronaut 47 Sheikh Muszaphar 47 lunar orbit 47 interplanetary spacecraft 46 SpaceX Falcon 9 46 shuttle Atlantis 46 Edwin Buzz Aldrin 46 Zhai 46 space shuttle Discovery 46 De Winne 46 Nicole Stott 46 Astronaut 46 sub orbital 46 lunar probe 46 Soyuz craft 46 NASA Astronaut 46 Bob Thirsk 46 NASA astronaut corps 46 Yurchikhin 46 Leroy Chiao 46 Baikonur space 45 manned spaceflight 45 Russian Soyuz spacecraft 45 Kononenko 45 orbital module 45 satellite Sputnik 45 Minister Cao Gangchuan 45 Lonchakov 45 spaceflights 45 astronaut Buzz Aldrin 45 Russian Soyuz rocket 45 Space Shuttle Discovery