Related by context. Frequent words. (Click for all words.) 61 astronaut 60 Malenchenko 60 NASA astronaut 60 Padalka 58 Wakata 58 Michael Lopez Alegria 57 International Space Station 57 cosmonaut 56 Soyuz capsule 56 astronauts 55 shuttle Discovery 55 Space Shuttle Endeavour 55 Russian Soyuz spacecraft 55 shuttle Atlantis 55 Soyuz 55 Lopez Alegria 54 Sunita Williams 54 space shuttle Discovery 54 Space Shuttle Atlantis 54 spacewalker 54 Tracy Caldwell Dyson 54 Mike Fincke 54 space shuttle Endeavour 54 Shuttle Endeavour 53 spacewalk 53 shuttle Endeavour 53 aboard Endeavour 53 Flight Engineer 53 Space Agency 53 cosmonauts 52 Soyuz spacecraft 52 orbiting laboratory 52 Fincke 52 Space Shuttle Discovery 52 Russian Soyuz capsule 51 Eileen Collins 51 orbit 51 Oleg Kotov 51 Space shuttle Endeavour 51 Russian cosmonauts 51 Russian cosmonaut 51 Sharipov 51 Soyuz TMA 50 orbiter 50 spacecraft 50 Astronaut 50 space shuttle 50 Space Station 50 Endeavour 50 spacewalking 50 spacewalks 50 orbiting 50 orbiting lab 50 Endeavour astronauts 50 Shuttle Discovery 49 Shuttle Atlantis 49 Perminov 49 undock 49 undocked 49 John Grunsfeld 49 NASA 49 Chiao 49 manned spacecraft 48 spacesuit 48 Mission Control 48 Space shuttle Discovery 48 Melroy 48 Baikonur Cosmodrome 48 shuttle astronauts 48 Discovery astronauts 48 orbital outpost 48 Russian Soyuz 48 Mark Polansky 48 Vinogradov 48 undocking 47 Tokarev 47 orbiting outpost 47 shuttle missions 47 Atlantis astronauts 47 spaceflight 47 Astronauts 47 crewmates 47 Thomas Reiter 47 Tyurin 46 Kopra 46 spacewalking astronauts 46 JAXA 46 Suffredini 46 Gerstenmaier 46 space shuttle Atlantis 45 spacesuits 45 liftoff 45 director Mike Leinbach 45 Nasa 45 shuttle robotic arm 45 Baikonur cosmodrome 45 manned spaceflight 45 spaceship 45 Bresnik 45 Kotov 44 Whitson