Related by context. Frequent words. (Click for all words.) 68 Nicole Stott 65 Kopra 62 Daniel Tani 60 Garrett Reisman 60 Wakata 59 aboard Endeavour 57 Tracy Caldwell Dyson 57 International Space Station 56 Mission Specialists 56 astronaut 56 shuttle Atlantis 56 spacewalker 55 Krikalev 55 Shuttle Endeavour 55 astronauts 55 Shuttle Atlantis 55 NASA astronaut 54 Russian Soyuz spacecraft 54 Yurchikhin 54 orbiting laboratory 54 space shuttle Discovery 53 Flight Engineer 53 Shuttle Discovery 53 commander Rick Sturckow 53 Padalka 53 Fuglesang 53 spacewalk 53 Soyuz capsule 53 Mike Fincke 53 astronaut Sunita Williams 53 shuttle Discovery 53 Soichi Noguchi 53 Caldwell Dyson 53 Lopez Alegria 53 Space Shuttle Discovery 52 spacewalking 52 Space Shuttle Endeavour 52 Space Shuttle Atlantis 52 Sunita Williams 52 Oleg Kotov 52 Thomas Reiter 52 shuttle Endeavour 52 Astronauts 51 shuttle missions 51 shuttle astronauts 51 Endeavour astronauts 51 Malenchenko 51 Soyuz rocket 51 orbiting outpost 51 Fincke 51 Spacewalking astronauts 50 spacewalks 50 Lee Archambault 50 orbiting lab 50 commander Peggy Whitson 50 space shuttle Endeavour 50 Spacewalkers 50 Stefanyshyn Piper 50 space shuttle 50 shuttle 50 Russian cosmonaut 50 Astronaut 50 Robonaut 2 50 NASA 50 Russian Soyuz rocket 49 Space shuttle Discovery 49 spacewalking astronauts 49 John Grunsfeld 49 cosmonaut 49 Russian Soyuz capsule 49 cosmonauts 49 orbital outpost 49 spacewalkers 49 ISS 49 By Irene Klotz 49 undock 49 Russian Soyuz 48 Space shuttle Endeavour 48 Atlantis astronauts 48 Nasa 48 Soyuz 48 Chamitoff 48 orbiter 48 Foale 48 Space Agency 48 Michael Lopez Alegria 48 Alpha Magnetic Spectrometer 47 Soyuz craft 47 spacemen 47 Soyuz spacecraft 47 Russian cosmonauts 47 Mark Polansky 47 ammonia tank 47 Orion spacecraft 47 Mastracchio 46 Space shuttle Atlantis 46 orbiters 46 Fossum 46 Walheim 46 spacecraft 46 Space Station