Related by context. Frequent words. (Click for all words.) 40 orbiter 38 heat shield 38 shuttle astronauts 37 thermal tiles 35 astronauts 35 ammonia tank 35 Astronauts 35 space shuttle Atlantis 35 spacewalkers 35 Discovery astronauts 35 airlock 34 gap fillers 34 orbital debris 34 aboard Endeavour 34 Endeavour 34 foam 34 shuttle Atlantis 34 Endeavour astronauts 34 payload bay 34 spacecraft 33 Atlantis astronauts 32 truss segment 32 spacewalking astronauts 32 thermal tile 32 shuttle Endeavour 32 Mastracchio 31 International Space Station 31 undocking 31 thermal blanket 31 space shuttle 31 shuttle missions 31 Nasa 31 Space Shuttle Atlantis 31 shuttle fleet 31 John Grunsfeld 31 shuttle Discovery 30 spacesuits 30 orbiting 30 NASA 30 Atlantis 30 shuttle 30 Parazynski 30 Malenchenko 30 Tracy Caldwell Dyson 30 Grunsfeld 30 Space Shuttle Endeavour 30 Foale 30 Garan 29 Shuttle Atlantis 29 spacewalk 29 orbital outpost 29 foam insulation 29 orbiting laboratory 29 thruster 29 Yurchikhin 29 Fuglesang 29 necessary 29 shuttle robotic arm 29 Wakata 29 space shuttle Endeavour 29 space shuttle Discovery 28 Hubble 28 rotary joint 28 spacewalks 28 Padalka 28 astronauts aboard 28 Space Shuttle Discovery 28 planned 28 Stefanyshyn Piper 27 meant 27 Lopez Alegria 27 orbiting outpost 27 Shuttle Endeavour 27 Hubble Space Telescope 27 designed 27 robotic arm 27 intended 27 JAXA 27 Mike Fincke 26 Shuttle Discovery 26 Soyuz TMA 26 needed 26 Gerstenmaier 26 Fincke 26 orbit 26 urgently needed 26 Curbeam 26 spaceship 26 Soyuz 25 unmanned spacecraft 25 spacewalking 25 Soichi Noguchi 25 decided 25 insulating foam 25 need 25 spacewalker 25 orbiting lab 25 plans 25 Spacewalk 24 Soyuz capsule 24 vowed