Related by context. Frequent words. (Click for all words.) 55 shuttle payload bay 51 ammonia coolant 48 Ares IX rocket 48 Discovery payload bay 47 spacewalk 47 Kaleri 46 thruster 45 Shuttle astronauts 45 orbiting complex 45 Oleg Kononenko 44 Spacewalkers 44 PSLV C# 44 EVAs 43 payload bay 43 Launch Pad #B 43 preheating 43 undock 42 spacewalks 42 thrusters 42 Shane Kimbrough 42 airlock 42 shuttle Atlantis 42 6 #/#-hour spacewalk 42 orbital module 41 robotic arm 41 International Space Station 41 spacewalkers 41 orbit insertion 41 Padalka 41 Two spacewalking astronauts 41 reattaching 41 Space Launch Vehicle 41 spacewalking astronauts 41 shuttle thermal tiles 41 director Holly Ridings 40 David Leckrone 40 Automated Transfer Vehicle 40 Heidemarie Stefanyshyn Piper 40 Endeavour astronauts 40 ISS Expedition 40 Dan Tani 40 Greg Chamitoff 40 ion propulsion 40 Spirit rover 40 lunar orbit 40 Kibo laboratory 39 Centaur upper 39 Flight controllers 39 lander 39 Spacewalk 39 payload bay doors 39 Discovery STS 39 Hubble servicing 39 Mike Suffredini 39 Tracy Caldwell Dyson 39 Baikonur Kazakhstan 39 electrodes implanted 39 spacesuits 39 Lyndin 39 Discovery astronauts 39 undocking 39 Caldwell Dyson 39 Spacewalking astronauts 39 subassembly 39 Orion spacecraft 39 spacecraft 39 orbital 39 Soyuz rocket 39 Orion capsule 39 lunar lander 39 CALIPSO 39 spacewalking 39 Jet Propulsion Laboratory JPL 39 undocked 39 pad #A 38 Shuttle Endeavour 38 disassemble 38 truss 38 robotic 38 kinematic 38 orbiter 38 Canadarm2 38 orbit 38 Yurchikhin 38 Dextre 38 Phoenix Mars lander 38 wheeled robot 38 Robert Behnken 38 JAXA 38 commander George Zamka 38 catheter inserted 38 reattach 38 reattachment 38 gimbal 38 Richard Linnehan 38 Tim Kopra 38 defrost 38 Tyurin 38 Roskosmos 38 Eyharts 38 rewiring