Related by context. Frequent words. (Click for all words.) 59 commander Rick Sturckow 52 Discovery astronauts 51 space shuttle Discovery 50 director Mike Leinbach 50 John Grunsfeld 50 NASA astronaut 50 Endeavour astronauts 49 Yurchikhin 49 space shuttle 49 astronauts 49 Mission Control 49 astronaut 49 Endeavour 49 shuttle Atlantis 49 Wakata 48 space shuttle Endeavour 48 shuttle Endeavour 47 Fincke 47 Mark Polansky 47 Grunsfeld 47 Mike Fincke 47 shuttle Discovery 47 Stefanyshyn Piper 47 spacewalkers 47 Padalka 47 Tracy Caldwell Dyson 47 shuttle 47 Malenchenko 46 orbiter 46 Atlantis astronauts 46 NASA 46 spacecraft 46 Soyuz 46 crewmates 46 Shuttle Atlantis 46 Space Shuttle Atlantis 46 Curbeam 46 shuttle astronauts 45 Shuttle Endeavour 45 Lopez Alegria 45 Atlantis 45 International Space Station 44 Kennedy Space 44 aboard Endeavour 44 Space Shuttle Discovery 44 Soichi Noguchi 44 Space Shuttle Endeavour 44 spacewalk 44 Space shuttle Atlantis 44 STS 44 Space shuttle Discovery 44 Cape Canaveral 44 LeRoy Cain 44 Chamitoff 44 Gerstenmaier 44 Perminov 43 Mastracchio 43 Nasa 43 spacewalker 43 Leinbach 43 liftoff 43 booster rockets 43 Space shuttle Endeavour 43 Soyuz capsule 43 NASA Administrator 43 space shuttles 43 Ares IX 43 shuttle robotic arm 42 Rick Husband 42 spaceship 42 KENNEDY SPACE CENTER 42 spacewalks 42 Parazynski 42 Flight Engineer 42 heat shield 42 Melroy 42 Soyuz TMA 42 blastoff 42 lunar module 42 Daniel Tani 42 Astronaut 41 Massimino 41 Fuglesang 41 Astronauts 41 Hubble 41 Russian Soyuz spacecraft 41 cosmonaut 41 Shuttle Discovery 41 shuttle missions 40 Russian Soyuz capsule 40 thrusters 40 spacesuits 40 astronaut corps 40 Space Agency 40 Cape Canaveral Air Force 40 Apollo astronauts 40 Space Shuttle 40 CAPE CANAVERAL 40 Space Station 40 Vinogradov 40 Hubble Space Telescope