Related by context. Frequent words. (Click for all words.) 55 Space Shuttle Atlantis 53 ESA astronaut 53 Space Shuttle Endeavour 51 Space Shuttle Discovery 51 Shuttle Atlantis 50 Mission Specialists 50 Ares IX rocket 50 Shuttle Discovery 50 Doug Wheelock 50 Shuttle astronauts 49 Commander Peggy Whitson 49 Discovery STS 48 International Space Station 47 shuttle Atlantis 47 Dan Tani 47 NASA Astronaut 47 Shuttle Endeavour 47 Two spacewalking astronauts 47 Spacewalkers 47 Soichi Noguchi 47 Lee Archambault 46 SpaceX Falcon 9 46 Piers Sellers 46 Tim Kopra 46 Greg Chamitoff 46 Space shuttle Endeavour 46 NASA Kepler 46 astronaut Julie Payette 46 space shuttle Discovery 46 Canadarm2 46 Alexander Kaleri 46 Koichi Wakata 46 Astronauts aboard 46 orbit insertion 46 Russian leased Baikonur 46 Baikonur Kazakhstan 46 Soyuz FG rocket 46 Shenzhou VII 45 Hoshide 45 Automated Transfer Vehicle 45 NASA Space Shuttle 45 Nie Haisheng 45 Scott Parazynski 45 Mars orbiter 45 CALIPSO 45 Oleg Skripochka 45 Solar Dynamics 45 Eyharts 45 Zamka 45 spaceship 45 Rick Mastracchio 45 Robert Behnken 45 Stardust spacecraft 45 Russian Soyuz TMA 45 Ariane rocket 44 NASA astronaut 44 Mikhail Kornienko 44 downlinked 44 Mike Fincke 44 Space Station 44 space shuttle Atlantis 44 John Grunsfeld 44 Japanese astronaut Soichi 44 X ray telescope 44 robotic spacecraft 44 PASADENA Calif. NASA 44 Astronauts 44 space shuttle Endeavour 44 Commander Eileen 44 unmanned spacecraft 44 Soyuz capsule carrying 44 Phoenix Mars lander 44 Space shuttle Atlantis 44 Leland Melvin 44 Space shuttle Discovery 44 payload bay 44 Harmony module 43 spacewalk 43 astronaut Peggy Whitson 43 Spacewalking astronauts 43 Flight Engineer 43 Douglas Wheelock 43 Oleg Kononenko 43 Frank De Winne 43 Orion spacecraft 43 orbital module 43 NASA 43 Fyodor Yurchikhin 43 astronaut 43 Shenzhou V 43 lunar orbiter 43 Cassini Huygens 43 Yang Liwei 43 orbiting observatory 43 Andrew Feustel 43 Space Agency 43 Spacewalk 42 pad #A 42 Yurchikhin 42 New Horizons spacecraft 42 Christa McAuliffe backup