Related by context. Frequent words. (Click for all words.) 60 space shuttle Discovery 59 Mark Polansky 58 Eileen Collins 58 Space Shuttle Atlantis 57 Mike Fincke 56 Space Shuttle Endeavour 56 space shuttle Endeavour 56 Space Shuttle Discovery 56 Flight Engineer 55 Shuttle Endeavour 55 Shuttle Atlantis 55 International Space Station 55 John Grunsfeld 54 shuttle Discovery 54 Shuttle Discovery 54 spacewalkers 53 Space shuttle Endeavour 53 Yurchikhin 53 Space shuttle Atlantis 52 Space shuttle Discovery 52 Rick Husband 52 Michael Lopez Alegria 52 shuttle Atlantis 52 Endeavour 51 astronauts 51 shuttle Endeavour 51 Fincke 51 Tracy Caldwell Dyson 51 spacewalk 51 Endeavour astronauts 51 Discovery astronauts 51 Mission Control 51 space shuttle 50 crewmates 50 Mastracchio 50 Soyuz capsule 50 Atlantis astronauts 50 Soichi Noguchi 49 shuttle 49 orbiter 49 aboard Endeavour 49 astronaut 49 Lopez Alegria 49 shuttle robotic arm 49 STS 49 space shuttle Atlantis 48 shuttle missions 48 Oleg Kotov 48 orbiting laboratory 48 liftoff 48 undock 48 Thomas Reiter 47 Soyuz TMA 47 NASA astronaut 47 spacewalks 47 spacewalking 47 Space Station 46 Ares IX 46 Padalka 46 Malenchenko 46 spacewalker 46 Wakata 46 Stefanyshyn Piper 46 Chamitoff 46 shuttle astronauts 46 spacecraft 46 spacewalking astronauts 45 Russian Soyuz capsule 45 Melroy 45 Grunsfeld 45 Foale 45 NASA 45 orbiting outpost 45 Soyuz 45 Nespoli 45 LeRoy Cain 44 orbital outpost 44 undocking 44 Curbeam 44 truss segment 44 Astronauts 43 unmanned spacecraft 43 Parazynski 43 Vinogradov 43 Astronaut 43 Soyuz spacecraft 43 undocked 43 preflight 43 orbit 43 Russian Soyuz spacecraft 43 Space Shuttle 43 Cape Canaveral 43 lunar module 42 thrusters 42 Sunita Williams 42 Russian cosmonaut 42 Polansky 42 copilot 42 Atlantis 42 Kennedy Space 42 Fuglesang