Related by context. Frequent words. (Click for all words.) 56 Mark Polansky 52 Mike Fincke 50 Eileen Collins 49 Mission Control 47 Space Shuttle Discovery 47 Grunsfeld 47 Rick Husband 46 International Space Station 46 space shuttle Endeavour 45 space shuttle Discovery 45 shuttle Endeavour 45 spacewalk 44 Parazynski 44 Endeavour astronauts 44 space shuttle 44 Fincke 44 liftoff 44 Suffredini 43 Gerstenmaier 43 Atlantis astronauts 43 shuttle astronauts 43 Endeavour 43 Shuttle Endeavour 43 Kennedy Space 43 Melroy 43 shuttle 42 Feustel 42 Lopez Alegria 42 astronauts 42 Space Shuttle Endeavour 42 Flight Engineer 42 Discovery astronauts 42 spacewalkers 42 NASA 42 orbiter 42 Space shuttle Endeavour 41 Space shuttle Atlantis 41 Space Shuttle Atlantis 41 STS 41 shuttle Atlantis 41 shuttle Discovery 41 undocking 41 Chamitoff 41 Cape Canaveral 41 spacewalking 40 Polansky 40 astronauts aboard 40 Atlantis 40 blastoff 40 Wakata 40 Shuttle Discovery 40 NASA Jet Propulsion Laboratory 40 Flight controllers 39 Fossum 39 spacecraft 39 spacewalks 39 Space shuttle Discovery 39 Ares IX 39 Astronauts 39 Satcher 39 Bresnik 39 payload bay 39 Leinbach 38 Space Station 38 astronaut 38 Cape Canaveral Air Force 38 Nasa 38 Hubble 38 Gehman 38 Astronaut 38 Dittemore 37 orbit 37 NASA Jet Propulsion 37 Whitson 37 Space Shuttle 37 spacesuits 37 orbiting 37 Soyuz 37 undock 37 Melvill 37 director Mike Leinbach 37 Bolden 37 By Irene Klotz 37 Padalka 37 NASA astronaut 36 Olivas 36 spacewalker 36 Soyuz capsule 36 shuttle missions 36 thermal blanket 36 spacewalking astronauts 36 solid rocket boosters 36 space shuttle Atlantis 36 Thomas Reiter 36 weightlessness 36 Soyuz TMA 35 spaceflight 35 crewmates 35 NASA Administrator 35 orbiting outpost 35 Squyres