Related by context. Frequent words. (Click for all words.) 71 Shenzhou VII 65 lunar orbiter 65 Shenzhou V 65 Shenzhou VI 64 Nie Haisheng 64 unmanned lunar 64 Xichang 63 astronaut Yang Liwei 61 Jiuquan Satellite Launch 60 Yang Liwei 60 manned spacecraft 59 Baikonur Kazakhstan 58 Soyuz capsule carrying 58 spacecraft 57 Shenzhou 57 Jiuquan 56 PSLV C# 56 Soyuz rocket 56 lunar probe 56 unmanned spacecraft 56 Soviet cosmonaut Yuri Gagarin 55 New Horizons spacecraft 55 Messenger spacecraft 55 lunar orbit 54 Ariane rocket 54 Discovery STS 54 interplanetary spacecraft 54 Baikonur space 53 Shuttle Discovery 53 Sriharikota 53 taikonauts 53 International Space Station 53 Astronauts aboard 53 orbiter 53 orbit 53 Space Shuttle Discovery 52 Russian Soyuz TMA 52 SpaceX Falcon 9 52 Satish Dhawan Space 52 space shuttle Discovery 52 On Orbit Status 52 orbital module 52 remote sensing satellite 52 Ares IX rocket 52 orbiting 52 Shuttle Endeavour 52 astronauts 52 Chang'e 52 Baikonur Cosmodrome 51 shuttle Discovery 51 Tanegashima 51 Mars Pathfinder 51 Space Shuttle Atlantis 51 Stardust spacecraft 51 Discovery payload bay 51 Kazakh steppe 51 Oleg Kononenko 50 Xichang Satellite Launch 50 cryogenic engine 50 Discovery liftoff 50 orbital outpost 50 space shuttle Endeavour 50 Malenchenko 50 Shuttle astronauts 50 rover Opportunity 50 X ray telescope 50 Kourou French Guiana 50 Russian Soyuz rocket 50 Space Shuttle Endeavour 50 Soyuz spacecraft 50 Cassini Huygens 49 SELENE 49 Piers Sellers 49 spacewalk 49 orbited 49 orbiting complex 49 NASA spaceport 49 Lyndin 49 Vehicle PSLV 49 spaceship 49 manned spaceflight 49 astronaut 49 Soyuz capsule 49 Plesetsk 49 southwestern Sichuan Province 49 orbiting observatory 49 lunar 49 Alexander Kaleri 49 Peggy Whitson 49 Dragon capsule 48 Kaguya 48 Wenchang 48 liftoff 48 Koichi Wakata 48 orbiting laboratory 48 chief Anatoly Perminov 48 space shuttle Atlantis 48 Automated Transfer Vehicle 48 Chandrayaan 48 spacecrafts 48 Martian arctic