Related by context. Frequent words. (Click for all words.) 53 Stefanyshyn Piper 49 Spacewalking astronauts 48 Spacewalkers 47 spacewalk 46 spacewalkers 46 Shuttle astronauts 44 spacewalking astronauts 44 Rick Mastracchio 44 Discovery payload bay 44 spacewalking 43 Two spacewalking astronauts 42 Heidemarie Stefanyshyn Piper 42 spacewalking astronaut 42 Atlantis astronauts 42 Greg Chamitoff 41 payload bay 41 Astronauts 41 shuttle payload bay 41 sewing kit 40 Frank De Winne 40 Fuglesang 40 spacewalker 40 Endeavour astronauts 40 Mike Suffredini 40 spacewalking partner 39 orbital module 39 shuttle Endeavour 39 Robert Behnken 39 Scott Parazynski 39 spacewalks 39 Acaba 39 Lopez Alegria 39 Alpha Magnetic Spectrometer 38 Doug Wheelock 38 shuttle astronauts 38 Christer Fuglesang 38 Discovery astronauts 38 Astronauts aboard 38 Malenchenko 38 commander Peggy Whitson 38 orbiting complex 37 spacesuits 37 Tracy Caldwell Dyson 37 Mastracchio 37 International Space Station 37 Grunsfeld 37 Yurchikhin 37 John Grunsfeld 37 Soichi Noguchi 37 junk drawer 37 Bill Gerstenmaier NASA 37 Curbeam 37 unzip 37 Parazynski 37 Lee Archambault 37 Shenzhou VII 37 Hubble servicing 36 aboard Endeavour 36 Spacewalk 36 shuttle robotic arm 36 overhead compartment 36 Christa McAuliffe backup 36 astronauts 36 gap fillers 36 space shuttle 36 astronaut 36 Dextre 36 Space shuttle Atlantis 36 spacesuit 36 robotic arm 36 Fincke 36 Mission Control 36 stowing 36 Gerstenmaier 35 Mike Fincke 35 Andrew Feustel 35 Vinogradov 35 space shuttle Discovery 35 orbiter 35 Space Shuttle Discovery 35 Kenneth Ham 35 stow 35 orbiting outpost 35 Behnken 35 er rip 35 Shuttle Discovery 35 Gregory Chamitoff 35 Harmony module 35 Lyndin 35 insulation foam 35 Kononenko 35 Zamka 35 Robonaut 35 Douglas Wheelock 35 stowed 35 space shuttle Atlantis 34 unhook 34 Sturckow 34 Flight Engineer 34 Automated Transfer Vehicle 34 lunar module