Related by context. Frequent words. (Click for all words.) 65 Shuttle astronauts 64 Discovery astronauts 59 Space shuttle Atlantis 59 Endeavour astronauts 58 space shuttle Discovery 57 Astronauts aboard 57 orbiting complex 57 Atlantis astronauts 56 Spacewalking astronauts 56 International Space Station 56 shuttle Discovery 55 Shuttle Atlantis 55 space shuttle Endeavour 55 Space Shuttle Atlantis 55 shuttle astronauts 55 astronauts 55 shuttle Endeavour 54 Space shuttle Discovery 54 space shuttle Atlantis 54 Two spacewalking astronauts 53 Space Shuttle Discovery 53 Astronauts 53 shuttle Atlantis 53 orbital outpost 53 Heidemarie Stefanyshyn Piper 52 Space Shuttle Endeavour 52 shuttle payload bay 51 Dragon capsule 51 Shuttle Discovery 51 Mikhail Kornienko 51 Commander Eileen 50 spacewalk 50 6 #/#-hour spacewalk 50 Soyuz rocket 50 Stephen Frick 50 Spacewalkers 50 spacewalkers 50 space shuttle 50 Piers Sellers 50 crewmates 50 Lee Archambault 50 Shuttle Endeavour 50 Mission Specialists 49 Lyndin 49 undocking 49 Nicole Stott 49 spacecraft 49 astronauts aboard 49 Kazakh steppe 49 Space shuttle Endeavour 49 spacemen 48 Andrew Feustel 48 Greg Chamitoff 48 Sturckow 48 Discovery payload bay 48 Frank De Winne 48 Robert Behnken 48 Alan Poindexter 47 Soyuz TMA 47 Christer Fuglesang 47 orbiting outpost 47 Shenzhou VI 47 Shenzhou VII 47 shuttle 47 Shuttle commander 47 Wakata 47 liftoff 47 Endeavour 47 commander Rick Sturckow 47 orbital module 47 orbiter 47 Rick Husband 47 Hoshide 46 Zamka 46 Harmony module 46 Canadarm2 46 Soichi Noguchi 46 Leroy Chiao 46 Padalka 46 Russian cosmonauts 46 Soyuz capsule 46 aboard Endeavour 46 Daniel Tani 46 Peggy Whitson 46 Fuglesang 46 Crewmembers 46 Eric Boe 46 rover Opportunity 46 Garrett Reisman 46 taikonauts 45 Sandra Magnus 45 Kenneth Ham 45 Krikalev 45 NASA 45 spacewalking astronauts 45 Flight Engineer 45 commander Pamela Melroy 45 spacewalks 45 Yurchikhin 45 Bob Thirsk 45 shuttle robotic arm