Related by context. Frequent words. (Click for all words.) 61 Andrew Feustel 58 John Grunsfeld 55 Mission Specialists 55 Nicole Stott 54 Spacewalkers 53 Rick Mastracchio 53 spacewalker 53 NASA astronaut 52 Sandra Magnus 52 Christer Fuglesang 52 Shuttle astronauts 51 Gregory Chamitoff 51 Spacewalking astronauts 51 commander Rick Sturckow 51 NASA Astronaut 50 Walheim 50 Stefanyshyn Piper 49 spacewalkers 49 astronaut 49 Gorie 49 Garrett Reisman 49 Alan Poindexter 49 Douglas Wheelock 49 Lee Archambault 48 Linnehan 48 Tracy Caldwell Dyson 48 Danny Olivas 48 Daniel Tani 48 Grunsfeld 48 spacewalking partner 48 spacewalk 48 Doug Wheelock 48 Fossum 48 Curbeam 47 Robert Behnken 47 Mike Fincke 47 Krikalev 47 Fincke 47 Shuttle commander 47 Feustel 47 Yurchikhin 46 International Space Station 46 commander Peggy Whitson 46 Hoshide 46 Flight Engineer 46 Astronaut 46 Zamka 46 Mastracchio 45 Commander Eileen 45 Caldwell Dyson 45 Mark Polansky 45 Fuglesang 45 Lopez Alegria 45 Garan 45 Sturckow 45 spacewalking 45 Acaba 45 Astronauts 45 cosmonaut 45 Padalka 45 Soichi Noguchi 44 Malenchenko 44 Oleg Kotov 44 Michael Foale 44 Stephen Frick 44 shuttle Endeavour 44 aboard Endeavour 44 Peggy Whitson 44 Space Station 44 Kopra 43 Hobaugh 43 Mike Suffredini 43 Marshburn 43 Foale 43 crewmates 43 Spacewalk 43 Parazynski 43 By Irene Klotz 43 Behnken 43 Space Shuttle Endeavour 43 Russian cosmonaut 42 spacewalking astronauts 42 Space Shuttle Discovery 42 Tani 42 shuttle astronauts 42 Discovery astronauts 42 Shuttle Discovery 42 Mission Control 42 spacewalks 42 Cosmonaut 42 NASA 42 Melroy 42 Kenneth Ham 42 Space Shuttle Atlantis 41 Kotov 41 Eric Boe 41 Shuttle Atlantis 41 Sunita Williams 41 Endeavour astronauts 41 Wakata 41 Flight controllers