Related by context. Frequent words. (Click for all words.) 65 Spacewalking astronauts 60 Discovery astronauts 58 Spacewalkers 57 Atlantis astronauts 57 Astronauts 57 Space Shuttle Atlantis 56 space shuttle Discovery 56 Space Shuttle Endeavour 55 shuttle Atlantis 55 Shuttle Discovery 55 spacewalkers 54 Endeavour astronauts 54 spacewalk 54 spacewalking astronauts 54 Space Shuttle Discovery 54 Shuttle Endeavour 53 shuttle Discovery 52 Space shuttle Atlantis 52 International Space Station 52 Shuttle Atlantis 52 Space shuttle Discovery 51 Tracy Caldwell Dyson 51 Andrew Feustel 51 aboard Endeavour 51 Yurchikhin 51 space shuttle Atlantis 50 astronauts 50 space shuttle Endeavour 50 Space shuttle Endeavour 50 ammonia coolant 49 commander Peggy Whitson 49 shuttle astronauts 49 spacewalks 49 Garrett Reisman 48 Padalka 48 undock 48 orbiting outpost 48 shuttle Endeavour 48 KENNEDY SPACE CENTER 48 Mission Specialists 48 Spacewalk 47 orbiting laboratory 47 SPACE CENTER Houston 47 Lee Archambault 47 CAPE CANAVERAL Fla. 47 spacewalking 46 undocking 46 Space Station 46 ammonia tank 46 Fuglesang 46 orbiter 46 undocked 46 John Grunsfeld 46 astronauts aboard 46 Hubble Space Telescope 46 Endeavour belly 46 Stefanyshyn Piper 46 commander Rick Sturckow 46 Caldwell Dyson 46 spacesuits 45 Phoenix lander 45 shuttle missions 45 spacecraft 45 Parazynski 45 NASA 45 Soyuz capsule 45 Russian Soyuz spacecraft 45 shuttle robotic arm 45 EDWARDS AIR FORCE BASE 45 payload bay 45 thermal tile 44 astronaut Sunita Williams 44 Spirit rover 44 Nicole Stott 44 Soyuz rocket 44 Soichi Noguchi 44 NASA astronaut 44 Mission Control 44 Malenchenko 44 orbit 44 Daniel Tani 44 Atlantis 44 BAIKONUR Kazakhstan 44 Alpha Magnetic Spectrometer 43 spacewalker 43 Flight Engineer 43 orbiting lab 43 lunar orbit 43 Russian cosmonauts 43 Danny Olivas 43 Phoenix Mars Lander 43 Wakata 43 spacemen 43 space shuttle 43 Curbeam 43 rotary joint 43 heat shield 43 Soyuz TMA 43 CAPE CANAVERAL 43 Soyuz 43 Krikalev