Related by context. Frequent words. (Click for all words.) 61 Wakata 61 International Space Station 58 Thomas Reiter 58 Chamitoff 57 orbiting laboratory 57 aboard Endeavour 56 Mike Fincke 55 Sunita Williams 55 Space Agency 54 Space Shuttle Discovery 54 shuttle Endeavour 54 Tracy Caldwell Dyson 54 astronauts 54 Padalka 54 shuttle astronauts 54 Fincke 54 Flight Engineer 53 Malenchenko 53 Michael Lopez Alegria 53 Space Shuttle Atlantis 53 Space Shuttle Endeavour 53 Endeavour astronauts 52 cosmonauts 52 Space shuttle Discovery 52 Russian Soyuz capsule 52 Thirsk 52 Soyuz capsule 52 Russian Soyuz spacecraft 52 space shuttle Discovery 52 Russian cosmonauts 51 shuttle Discovery 51 spacewalks 51 Lopez Alegria 51 shuttle Atlantis 51 space shuttle Endeavour 50 cosmonaut 50 NASA astronaut 50 Shuttle Discovery 50 astronaut 50 Shuttle Endeavour 50 shuttle missions 49 ISS 49 Endeavour 49 spacewalking 49 Space Station 49 Soyuz 49 orbital outpost 49 Simonyi 49 orbiting outpost 48 Kopra 48 Discovery astronauts 48 Soyuz spacecraft 47 orbiting lab 47 orbiting 47 Atlantis astronauts 47 spacewalk 47 Shuttle Atlantis 47 Soyuz TMA 46 Space shuttle Endeavour 46 Russian Soyuz 46 Tyurin 46 spacewalkers 46 spacecraft 45 Baikonur Cosmodrome 45 undock 45 Russian cosmonaut 45 Space shuttle Atlantis 45 Dextre 45 Laliberte 45 lunar orbit 45 orbit 45 Grunsfeld 45 crewmates 45 Astronauts 45 spaceflight 45 Astronaut 45 Mastracchio 44 Nespoli 44 orbiter 44 Polansky 44 space shuttle Atlantis 44 Kotov 44 zero gravity 44 space shuttle 44 Mark Polansky 44 Chiao 44 spacewalking astronauts 43 NASA 43 Phoenix Mars Lander 43 manned spacecraft 43 robotic arm 43 Mission Control 43 weightlessness 42 spacesuits 42 Sharipov 42 Reisman 42 JAXA 42 Atlantis 42 shuttle 42 airlock 42 spacewalker