Related by context. Frequent words. (Click for all words.) 56 astronauts 56 space shuttle 52 NASA 52 shuttle Discovery 52 Fincke 51 shuttle 50 space shuttle Discovery 50 astronaut 50 Eileen Collins 50 Discovery astronauts 49 Mike Fincke 48 Nasa 48 Dittemore 48 Endeavour astronauts 48 Grunsfeld 48 spacecraft 48 orbiter 48 commander Rick Sturckow 48 Suffredini 48 Lopez Alegria 48 Astronauts 47 NASA astronaut 47 shuttle astronauts 47 International Space Station 47 thermal tile 47 crewmates 47 spaceflight 47 Gerstenmaier 46 space shuttles 46 Yurchikhin 46 Space Shuttle Atlantis 46 shuttle Atlantis 46 Space Shuttle 46 heat shield 46 Daniel Tani 46 Mastracchio 46 Mission Control 46 aboard Endeavour 45 shuttle Endeavour 45 Atlantis astronauts 45 Space Shuttle Discovery 45 Foale 45 shuttle missions 45 Malenchenko 45 Hobaugh 44 liftoff 44 Mark Polansky 44 space shuttle Endeavour 44 spacewalkers 44 Endeavour 44 John Grunsfeld 44 orbiting laboratory 44 Mars rovers 43 Kostelnik 43 Stefanyshyn Piper 43 Space Station 43 Tracy Caldwell Dyson 43 Shuttle Atlantis 43 spacewalker 43 Space Shuttle Endeavour 43 Parazynski 43 Apollo astronauts 43 Shuttle Endeavour 43 Bolden 43 Bill Gerstenmaier 43 space shuttle Atlantis 43 Whitson 43 spacewalks 43 Chamitoff 42 spaceship 42 spacewalk 42 Flight controllers 42 manned spacecraft 42 Gehman 42 Wakata 42 Shuttle 42 human spaceflight 42 Rick Husband 42 Curbeam 42 Flight Engineer 42 thermal tiles 42 orbiters 42 NASA Administrator 42 orbiting 41 Michael Lopez Alegria 41 Nespoli 41 Soichi Noguchi 41 Shuttle Discovery 41 Melroy 41 Soyuz capsule 41 spacemen 41 Padalka 41 NASA Space Shuttle 41 Oleg Kotov 40 shuttle fleet 40 Challenger exploded 40 Behnken 40 KENNEDY SPACE CENTER 40 Astronaut 40 spacecrafts 40 payload bay