Related by context. Frequent words. (Click for all words.) 55 Spacewalking astronauts 54 metal shavings 54 rotary joint 50 Spacewalkers 50 spacewalking astronaut 45 Rick Mastracchio 45 Discovery astronauts 44 spacewalking astronauts 44 spacewalker 44 solar arrays 43 spacewalk 43 Mike Suffredini 42 Spirit rover 42 Endeavour astronauts 42 Shuttle astronauts 42 Harmony module 41 LeRoy Cain chairman 41 Astronauts aboard 41 Martian soil 41 Space shuttle Discovery 41 robotic spacecraft 41 Dextre 41 heat shield 41 shuttle Discovery 41 Atlantis astronauts 40 undock 40 orbiting complex 40 ammonia coolant 40 space shuttle Endeavour 40 rover Opportunity 40 Christer Fuglesang 40 Flight controllers 40 space shuttle Discovery 40 ammonia tank 39 shuttle Endeavour 39 Suffredini 39 Phoenix lander 39 horizontal stabilizer 39 Space shuttle Atlantis 39 spacewalks 39 International Space Station 39 orbiting shuttle 38 Shuttle Endeavour 38 protrusions 38 orbiting spacecraft 38 Curbeam 38 thermal shielding 38 aboard Endeavour 38 thermal tile 38 protrusion 38 spokesman Allard Beutel 38 Shenzhou VII 38 Shuttle Discovery 38 Robert Behnken 38 space shuttle Atlantis 38 Scott Parazynski 38 truss segment 38 Andrew Feustel 37 spacewalkers 37 Parazynski 37 Gerstenmaier 37 orbiting outpost 37 orbiting 37 Fuglesang 37 Gorie 37 Alpha Magnetic Spectrometer 37 Space Shuttle Atlantis 37 shuttle robotic arm 37 commander Peggy Whitson 37 Endeavour belly 37 spacewalking 37 Saturn moon 36 Mars lander 36 Shuttle commander 36 spacesuits 36 Saturn rings 36 Space Shuttle Endeavour 36 orbiting lab 36 Mission Specialists 36 Cassini orbiter 36 hairline cracks 36 orbiter 36 spacewalking partner 36 Japan Aerospace Exploration 36 shuttle Atlantis 36 JAXA 36 cryogenic engine 36 Walheim 36 spacecraft 36 Robonaut 36 thruster 35 Space shuttle Endeavour 35 orbiting laboratory 35 Lunar Reconnaissance Orbiter 35 Wakata 35 LeRoy Cain 35 nose cone 35 lander 35 Robonaut 2 35 Nasa 35 Padalka