Related by context. Frequent words. (Click for all words.) 64 Padalka 59 International Space Station 57 orbiting laboratory 57 spacewalk 56 Malenchenko 56 spacewalking 56 Lopez Alegria 56 spacewalks 55 ISS 55 Soyuz capsule 54 Wakata 54 Soyuz 54 cosmonaut 53 shuttle Endeavour 53 Space Station 53 Chamitoff 53 Flight Engineer 53 shuttle Atlantis 53 Russian cosmonauts 53 cosmonauts 53 shuttle Discovery 52 shuttle astronauts 52 Space Shuttle Endeavour 52 undock 52 Fincke 51 astronauts 51 Endeavour astronauts 51 Space Agency 51 orbiter 51 Space Shuttle Atlantis 50 Space Shuttle Discovery 50 Sharipov 50 spacecraft 50 Soyuz spacecraft 50 orbiting outpost 50 astronaut 50 spacewalkers 50 undocking 49 orbital outpost 49 space shuttle Discovery 49 Atlantis astronauts 49 orbiting lab 49 Russian cosmonaut 48 crewmates 48 NASA astronaut 48 Discovery astronauts 48 space shuttle Endeavour 48 Endeavour 48 orbiting 47 NASA 47 shuttle missions 47 Grunsfeld 47 orbiters 47 Thomas Reiter 47 lander 47 spacewalker 47 Astronauts 47 spacewalking astronauts 46 orbit 46 Shuttle Discovery 46 Russian Soyuz spacecraft 46 STS 46 lunar orbit 46 Simonyi 46 Russian Soyuz 46 crewmembers 45 spaceflight 45 Mike Fincke 45 Chiao 45 Mission Control 45 airlock 45 space shuttle Atlantis 44 spacesuit 44 Nasa 44 robotic arm 44 Baikonur cosmodrome 44 space shuttle 44 Soyuz TMA 44 Hubble 44 JAXA 44 Space shuttle Discovery 43 Hubble Space Telescope 43 spacesuits 43 payload bay 43 ammonia tank 43 Orbiter 43 orbital 43 astronauts aboard 43 lunar surface 43 Space shuttle Endeavour 42 Baikonur Cosmodrome 42 MESSENGER 42 Baikonur 42 weightlessness 42 Eileen Collins 42 Mars Reconnaissance Orbiter 42 EVA 42 Atlantis 42 LRO 41 Astronaut 41 Mark Polansky