Related by context. Frequent words. (Click for all words.) 66 Discovery astronauts 64 Endeavour astronauts 63 shuttle astronauts 62 spacewalkers 61 space shuttle Atlantis 61 shuttle Discovery 61 space shuttle Discovery 60 shuttle Atlantis 60 astronauts 60 spacewalk 60 orbiting outpost 59 Astronauts 58 spacewalks 57 International Space Station 57 spacewalking astronauts 56 space shuttle Endeavour 55 spacecraft 55 Space Shuttle Atlantis 55 Soyuz capsule 55 shuttle Endeavour 55 Space Shuttle Discovery 54 orbiting laboratory 54 orbital outpost 54 undocking 53 Space shuttle Atlantis 53 orbiter 52 spacewalking 52 shuttle 52 spacewalker 52 Space shuttle Discovery 51 space shuttle 51 Parazynski 51 Shuttle Discovery 51 solar arrays 51 Atlantis 51 Padalka 51 Hubble Space Telescope 50 NASA 50 Endeavour 50 Space shuttle Endeavour 49 Hubble 49 astronauts aboard 49 spacesuits 49 orbiting lab 48 CAPE CANAVERAL Fla. 48 shuttle missions 48 Fincke 48 orbiting 48 payload bay 48 crewmates 48 Dextre 47 heat shield 47 Lopez Alegria 46 lander 46 Soyuz TMA 46 liftoff 46 robotic arm 46 Cape Canaveral 46 Flight Engineer 46 Chamitoff 46 orbiters 46 undock 46 orbit 45 ISS 45 Huygens 45 Soyuz spacecraft 45 Wakata 45 Flight controllers 45 Mission Control 45 Hubble telescope 45 Space Station 45 CAPE CANAVERAL 45 Mars Reconnaissance Orbiter 44 LCROSS 44 ammonia tank 44 Gerstenmaier 44 shuttle fleet 44 Russian Soyuz spacecraft 44 Space Agency 44 Spacewalk 44 Mark Polansky 44 Soyuz 44 Mike Fincke 44 Russian Soyuz 44 rovers 44 spaceflight 43 astronaut 43 Grunsfeld 43 Nasa 43 thermal blanket 43 Earth orbit 43 Melroy 43 Kennedy Space 43 Cassini 43 Cape Canaveral Fla. 43 manned spacecraft 42 NASA Jet Propulsion Laboratory 42 JAXA 42 Cassini spacecraft 42 spaceship 42 Mars rover