Related by context. Frequent words. (Click for all words.) 61 LeRoy Cain 57 Gerstenmaier 56 director Mike Leinbach 53 space shuttle 52 Suffredini 51 Leinbach 51 NASA 49 Mission Control 48 shuttle 47 shuttle Endeavour 47 shuttle missions 46 Mark Polansky 46 Endeavour 46 orbiter 46 Nasa 46 astronauts 46 astronaut 45 shuttle Atlantis 45 human spaceflight 45 liftoff 44 NASA Administrator 44 International Space Station 44 JAXA 44 Fincke 44 space shuttle Discovery 44 spaceflight 43 spacewalk 43 Eileen Collins 43 Perminov 43 shuttle Discovery 43 Mike Fincke 43 aboard Endeavour 43 shuttle fleet 42 Space Shuttle Discovery 42 Discovery astronauts 42 Space Shuttle 42 Dittemore 42 John Grunsfeld 42 space shuttles 42 cosmonauts 41 Soyuz 41 shuttle astronauts 41 Wakata 41 Grunsfeld 41 Shuttle Endeavour 41 Space shuttle Atlantis 41 Kostelnik 40 Bob Melvin 40 Shuttle Discovery 40 Ares IX 40 Melroy 40 Endeavour astronauts 40 NASA astronaut 40 Chamitoff 40 spacewalking 40 space shuttle Endeavour 40 Lopez Alegria 40 spacewalker 40 ISRO 40 Rick Husband 40 spacewalking astronauts 39 heat shield 39 Bolden 39 manned spaceflight 39 Shuttle 39 Atlantis 39 Squyres 39 Russian Soyuz spacecraft 39 orbiting outpost 39 undocking 39 shuttle robotic arm 39 Space shuttle Discovery 39 astronaut corps 38 spacewalks 38 insulating foam 38 Space Station 38 spacecraft 38 Shuttle Atlantis 38 spacewalkers 38 Hubble 38 lunar exploration 38 Kennedy Space 38 Mastracchio 38 orbiting lab 38 Astronaut 38 Space Shuttle Atlantis 38 undock 37 Earth orbit 37 Tracy Caldwell Dyson 37 thermal blanket 37 blastoff 37 Russian Soyuz 37 payload bay 37 Space Agency 37 cosmonaut 37 Charles Bolden 37 CAPE CANAVERAL Fla. 37 Space Shuttle Endeavour 37 orbital debris 36 orbiting laboratory 36 space shuttle Atlantis