Related by context. Frequent words. (Click for all words.) 51 cosmonaut 51 astronaut 49 Malenchenko 49 Russian cosmonauts 48 NASA astronaut 48 Nicole Stott 47 commander Peggy Whitson 47 Sunita Williams 46 BAIKONUR Kazakhstan 45 Russian cosmonaut 45 astronaut Sunita Williams 44 Wakata 44 Russian Soyuz rocket 44 Simonyi 43 Oleg Kotov 43 orbital outpost 43 Mark Polansky 43 Sharipov 43 Eileen Collins 43 Yuri Gagarin 42 International Space Station 42 Padalka 42 Foale 42 Space Shuttle Endeavour 42 Dennis Tito 41 Baikonur Cosmodrome 41 Space shuttle Discovery 41 Fincke 41 Soyuz rocket 41 Baikonur cosmodrome 41 Soyuz spacecraft 40 cosmonauts 40 Daniel Tani 40 Michael Lopez Alegria 40 Yurchikhin 40 Soyuz TMA 40 shuttle Discovery 40 John Grunsfeld 39 Ansari 39 Soyuz craft 39 space shuttle Discovery 39 Fuglesang 39 spacewalker 39 orbiting laboratory 39 commander Rick Sturckow 39 Aldrin 39 Astronaut 39 Space Shuttle Atlantis 39 Roskosmos 39 Kotov 39 Tracy Caldwell Dyson 38 Flight Engineer 38 Shuttle Atlantis 38 Lopez Alegria 38 Melroy 38 Chiao 38 space shuttle Endeavour 38 Shuttle Discovery 38 Russian Soyuz spacecraft 38 Vinogradov 38 Krikalev 38 Space Shuttle Discovery 38 Perminov 38 orbiting lab 38 orbit 37 lunar orbiter 37 Thomas Reiter 37 astronaut Buzz Aldrin 37 Parazynski 37 suborbital flight 37 Space Agency 36 manned spacecraft 36 Kalpana Chawla 36 Grunsfeld 36 Tyurin 36 Rakesh Sharma 36 shuttle Atlantis 36 Tani 36 Garrett Reisman 36 spaceflight 36 spacecraft 35 Shuttle commander 35 JAXA 35 space shuttle 35 Endeavour astronauts 35 Soyuz capsule 35 Fossum 35 Zhai 35 lunar orbit 35 Baikonur 35 Mike Fincke 35 suborbital flights 35 Space shuttle Atlantis 35 Nasa 35 blastoff 35 Polansky 35 astronauts 35 Soyuz 34 weightlessness 34 Gagarin 34 Whitson