Related by context. Frequent words. (Click for all words.) 61 Chamitoff 60 aboard Endeavour 58 International Space Station 57 Thomas Reiter 57 Padalka 57 Lopez Alegria 56 Malenchenko 56 Mike Fincke 55 shuttle Atlantis 54 Endeavour astronauts 54 Sunita Williams 54 Flight Engineer 53 orbiting laboratory 53 shuttle Endeavour 53 shuttle Discovery 52 Fincke 52 Kopra 51 JAXA 51 orbital outpost 51 Michael Lopez Alegria 51 spacewalk 51 space shuttle Discovery 51 Discovery astronauts 51 orbiting outpost 51 Tracy Caldwell Dyson 51 spacewalks 50 Soyuz capsule 50 Space Shuttle Discovery 50 cosmonauts 50 astronaut 50 shuttle astronauts 49 Space Shuttle Atlantis 49 astronauts 49 Sharipov 49 Space shuttle Discovery 49 space shuttle Endeavour 48 Russian Soyuz spacecraft 48 NASA astronaut 48 Chiao 48 spacewalker 47 Simonyi 47 Noguchi 47 Grunsfeld 47 payload bay 47 orbiting lab 47 Space Shuttle Endeavour 47 Soyuz 47 Russian cosmonauts 47 Space Agency 46 cosmonaut 46 Tani 46 ammonia tank 46 Shuttle Discovery 46 Soyuz TMA 46 spacewalking 46 Russian Soyuz capsule 46 Shuttle Endeavour 45 Mastracchio 45 shuttle missions 45 Atlantis astronauts 45 spacesuits 45 Suffredini 45 spacewalking astronauts 45 Space Station 45 Japan Aerospace Exploration 44 Nespoli 44 Space shuttle Endeavour 44 Kibo 44 ISS 44 Kotov 44 orbit 44 Gerstenmaier 44 Hayabusa 44 Parazynski 43 undock 43 spacewalkers 43 Astronauts 43 Melroy 43 Soyuz spacecraft 43 Mark Polansky 43 lunar orbit 43 Russian cosmonaut 43 airlock 43 spacecraft 43 orbiter 42 space shuttle Atlantis 42 undocking 42 Eileen Collins 42 Astronaut 42 robotic arm 42 Bresnik 42 lunar probe 41 weightlessness 41 orbiting 41 Phoenix Mars Lander 41 space shuttle 41 Chandrayaan 41 shuttle robotic arm 41 Perminov 41 spacesuit 41 zero gravity