Related by context. Frequent words. (Click for all words.) 44 spacewalks 43 robotics 42 payload bay 42 rigorous 40 spacewalking 40 robotic 40 Soyuz rocket 39 aboard Endeavour 38 spacecraft 38 spacewalk 38 Spacewalking astronauts 37 Caldwell Dyson 37 instrumentation 37 spacewalking astronauts 37 contraptions 37 shuttle Atlantis 37 astronauts aboard 37 robot 37 Space shuttle Atlantis 37 astronaut 37 spacewalkers 37 Spacewalkers 36 spaceship 36 shuttle Discovery 36 robots 36 airlock 36 shuttle missions 35 International Space Station 35 planetary exploration 35 Space shuttle Endeavour 35 Feustel 35 robotically 35 Christer Fuglesang 35 spacemen 35 Soyuz capsule 35 Astronauts aboard 35 orbital outpost 35 Space shuttle Discovery 35 Shuttle Discovery 35 rigor 35 Yurchikhin 35 Eric Boe 35 Stefanyshyn Piper 35 orbiting complex 35 orbiting laboratory 34 astronauts 34 space shuttle Discovery 34 ammonia coolant 34 lunar orbit 34 Nicole Stott 34 Fuglesang 34 unmanned 34 ammonia tank 34 Andrew Feustel 34 orbiting outpost 34 regimented 34 spacecrafts 34 Mission Specialists 34 orbit 34 spacesuits 33 Rigorous 33 Shuttle Atlantis 33 Astronauts 33 Spacewalk 33 undergo rigorous 33 Wakata 33 spacewalking astronaut 33 Shuttle Endeavour 33 spacesuit 33 Grunsfeld 33 BAIKONUR Kazakhstan 33 shuttle Endeavour 33 Lopez Alegria 32 cosmonaut 32 space shuttle Endeavour 32 Krikalev 32 Space Shuttle Endeavour 32 precision 32 Foale 32 testing 32 rigourous 32 docking port 32 liftoff 32 rote memorization 32 rocketry 32 Flight Engineer 32 Soichi Noguchi 32 tests 32 gyroscopes 32 Padalka 32 orbiting lab 32 meticulously 32 Atlantis astronauts 32 admirably 32 wondrously 32 electric propulsion 32 shuttle astronauts 32 space shuttle 32 NASA astronaut 31 interplanetary 31 commander Rick Sturckow