Related by context. Frequent words. (Click for all words.) 53 Eileen Collins 53 spacewalker 52 Fincke 49 shuttle astronauts 48 Chiao 47 shuttle Discovery 47 Lopez Alegria 47 Suffredini 46 astronaut 46 Grunsfeld 46 Parazynski 46 spacewalkers 46 Whitson 45 Discovery astronauts 45 Fossum 45 spacewalk 45 Padalka 44 Mike Fincke 44 Chamitoff 44 Space Shuttle Discovery 44 spacecraft 43 Wakata 43 Atlantis astronauts 43 orbital outpost 43 robotic arm 43 Gerstenmaier 43 Endeavour astronauts 43 astronauts 43 space shuttle 43 NASA astronaut 42 space shuttle Discovery 42 Mission Control 42 orbiter 42 Polansky 42 International Space Station 42 Soyuz TMA 41 Mark Polansky 41 spacewalking 41 Aldrin 41 shuttle 41 shuttle Endeavour 41 shuttle Atlantis 41 orbiting outpost 41 Endeavour 41 Dextre 41 Space Shuttle Atlantis 40 Feustel 40 Leinbach 40 NASA 40 spacewalks 40 Tani 40 JAXA 39 undocking 39 spaceflight 39 space shuttle Endeavour 39 orbit 39 Satcher 39 Soyuz 39 Reisman 39 crewmates 38 blastoff 38 Cassini 38 Hadfield 38 Dittemore 38 cosmonaut 38 orbiting 37 solar arrays 37 Cape Canaveral 37 STS 37 Astronaut 37 Astronauts 37 ISRO 37 Venus 37 shuttle missions 37 cosmonauts 36 astronauts aboard 36 spacewalking astronauts 36 ISS 36 KSC 36 orbiting lab 36 Wheelock 36 Sriharikota 36 liftoff 36 manned spacecraft 36 Nasa 36 Squyres 36 Space shuttle Discovery 35 Hubble 35 Space Shuttle 35 McCool 35 Yuri Gagarin 35 Stilson 35 Space Agency 35 Shuttle Discovery 35 space shuttles 35 lander 35 Gagarin 35 Cape Canaveral Air Force 35 SpaceX 35 Worden 35 Bigelow