Related by context. Frequent words. (Click for all words.) 72 spacewalk 66 spacewalking astronauts 66 spacewalks 63 astronauts 63 Endeavour astronauts 63 Discovery astronauts 62 shuttle astronauts 62 spacewalking 62 Atlantis astronauts 60 Astronauts 60 spacewalker 58 orbiting outpost 58 Mission Control 58 Fincke 58 shuttle Discovery 57 Parazynski 56 International Space Station 56 astronauts aboard 56 space shuttle Discovery 55 spacesuits 54 robotic arm 53 orbiter 53 shuttle Endeavour 53 shuttle Atlantis 52 orbiting lab 52 spacecraft 51 astronaut 51 Hubble Space Telescope 51 Flight controllers 50 payload bay 50 Dextre 50 Padalka 50 rotary joint 50 Hubble 50 undocking 50 space shuttle Endeavour 50 orbiting laboratory 49 airlock 49 orbiting 49 space shuttle 49 Space Shuttle Discovery 49 Soyuz capsule 49 crewmates 48 spacesuit 48 thrusters 48 Space Station 48 liftoff 48 NASA 48 shuttle missions 48 shuttle 48 Fossum 47 Chamitoff 47 space shuttle Atlantis 47 thruster 47 orbit 47 Atlantis 47 Endeavour 46 Spacewalk 46 Flight Engineer 46 cosmonauts 46 Gerstenmaier 46 Melroy 46 Kibo 46 heat shield 46 solid rocket boosters 46 docking port 46 gyroscopes 46 truss 46 undock 45 JAXA 45 CAPE CANAVERAL Fla. 45 Soyuz TMA 45 solar arrays 45 ISS 45 gyroscope 45 Space shuttle Atlantis 45 Mike Fincke 44 Nasa 44 Hubble telescope 44 Astronaut 44 Russian cosmonauts 44 Soyuz 43 Wakata 43 Huygens 43 STS 42 orbiters 42 cosmonaut 42 shuttle fleet 42 Space shuttle Discovery 42 lander 41 thermal tiles 41 stowage 41 EVA 41 Space Agency 41 Tani 41 Soyuz spacecraft 40 blowout preventer 40 girder 40 LCROSS 40 NASA astronaut 40 docking