Related by context. Frequent words. (Click for all words.) 65 Gregory Chamitoff 58 Nicole Stott 57 Shuttle Discovery 57 Japanese astronaut Koichi 55 Soviet cosmonaut Yuri Gagarin 55 astronaut Daniel Tani 55 Shuttle Endeavour 54 Daniel Tani 54 aboard Endeavour 54 Sandra Magnus 53 Greg Chamitoff 53 Baikonur Kazakhstan 52 Shuttle Atlantis 52 astronaut Sunita Williams 51 Russian Soyuz capsule 51 Mikhail Kornienko 51 shuttle Discovery 51 Bob Thirsk 51 orbiting 51 astronaut Yang Liwei 51 NASA Kepler 50 Krikalev 50 Space shuttle Atlantis 50 Kazakh steppe 50 Russian Soyuz spacecraft 50 Space shuttle Discovery 50 manned spacecraft 50 space shuttle Discovery 49 Space Shuttle Endeavour 49 Stardust spacecraft 49 Space Shuttle Atlantis 49 orbiting outpost 49 Soyuz capsule 49 Space Shuttle Discovery 49 International Space Station 49 Space shuttle Endeavour 49 Fyodor Yurchikhin 48 undock 48 Leroy Chiao 48 Soyuz rocket 48 Kourou French Guiana 48 NASA astronaut 47 Sunita Williams 47 shuttle Endeavour 47 orbiting complex 47 shuttle Atlantis 47 Shuttle astronauts 47 Russian Soyuz rocket 47 space shuttle Atlantis 47 Michael Foale 47 New Horizons spacecraft 47 astronauts 47 space shuttle Endeavour 47 Garrett Reisman 46 orbit 46 undocked 46 Thomas Reiter 46 Baikonur Cosmodrome 46 Cassini Huygens 46 orbiting laboratory 46 Wakata 46 Martian arctic 46 Endeavour astronauts 46 Discovery payload bay 46 NASA Lunar Reconnaissance 45 Russian cosmonaut 45 Frank De Winne 45 astronaut 45 robotic spacecraft 45 rover Opportunity 45 space shuttles 45 orbiting lab 45 spacecraft 45 Harmony module 45 orbital outpost 45 Mars Pathfinder 45 Tanegashima 45 Oleg Kononenko 45 Soyuz craft 45 shuttle missions 45 comet Wild 45 orbiters 45 space shuttle 44 Shenzhou VII 44 orbiting spacecraft 44 GOCE 44 Michael Lopez Alegria 44 shuttle astronauts 44 orbiter 44 EDWARDS AIR FORCE BASE 44 Padalka 44 Russian Soyuz 44 Atlantis astronauts 44 lunar orbiter 44 Spacewalking astronauts 44 shuttle disintegrated 44 Peggy Whitson 44 Yurchikhin 44 astronaut Julie Payette 44 Yang Liwei 43 commander Peggy Whitson