Related by context. Frequent words. (Click for all words.) 66 Padalka 61 International Space Station 58 Chiao 58 Soyuz 58 Fincke 57 Lopez Alegria 57 Flight Engineer 56 spacewalk 56 Wakata 56 Endeavour astronauts 56 Russian cosmonauts 56 Sharipov 55 ISS 55 Soyuz TMA 55 cosmonauts 55 orbit 54 astronauts 54 Kotov 54 Tracy Caldwell Dyson 54 spacesuits 53 cosmonaut 53 orbiting laboratory 53 spacecraft 53 astronaut 53 orbital outpost 53 orbiting 52 Soyuz spacecraft 52 shuttle astronauts 52 shuttle Discovery 52 Soyuz capsule 51 shuttle Atlantis 51 aboard Endeavour 51 crewmates 51 Russian Soyuz spacecraft 51 orbiting lab 51 spacewalkers 51 Chamitoff 51 NASA astronaut 50 Mike Fincke 50 spacewalks 50 orbiter 49 undock 49 Space Shuttle Discovery 49 Space Station 49 space shuttle Discovery 49 space shuttle Endeavour 49 Discovery astronauts 49 Space Shuttle Atlantis 49 shuttle Endeavour 48 NASA 48 Mission Control 48 Space Shuttle Endeavour 48 Russian cosmonaut 48 Baikonur 48 orbiting outpost 48 Volkov 48 Grunsfeld 47 spacewalker 47 Mastracchio 47 Baikonur cosmodrome 47 Shenzhou 47 Russian Soyuz capsule 47 spacewalking 47 Russian Soyuz 46 spacesuit 46 Baikonur Cosmodrome 46 manned spacecraft 46 Sunita Williams 46 space shuttle 46 Zhai 46 Atlantis astronauts 46 JAXA 46 Space Agency 46 Melroy 46 lunar orbit 46 Nasa 45 thrusters 45 Shuttle Discovery 45 airlock 45 STS 45 orbiters 44 Gerstenmaier 44 Spacewalk 44 Bresnik 44 Simonyi 44 Perminov 44 Thomas Reiter 44 Nespoli 44 Astronauts 43 shuttle missions 43 astronaut corps 43 Kopra 43 Atlantis 43 crewmembers 43 undocking 43 Space Shuttle 43 spaceflight 42 EVA 42 Chang'e 42 Endeavour 42 Aldrin