Related by context. Frequent words. (Click for all words.) 58 Astronauts aboard 57 Two spacewalking astronauts 55 Spacewalking astronauts 53 Shuttle astronauts 53 Spacewalkers 53 International Space Station 53 Shuttle Discovery 52 Shuttle Atlantis 52 Oleg Kononenko 51 Space Shuttle Endeavour 51 By Irene Klotz 51 Astronauts 51 Shuttle Endeavour 51 space shuttle Discovery 51 Space shuttle Discovery 50 Space shuttle Endeavour 50 Endeavour astronauts 50 shuttle Atlantis 50 SpaceX Falcon 9 50 Discovery payload bay 50 Space shuttle Atlantis 50 Baikonur Kazakhstan 49 Mikhail Kornienko 49 NASA 49 space shuttle Atlantis 49 Ariane rocket 48 Space Shuttle Atlantis 48 Robert Satcher 48 Piers Sellers 48 shuttle Endeavour 48 orbiting complex 48 BAIKONUR Kazakhstan 48 KENNEDY SPACE CENTER 48 Automated Transfer Vehicle 48 shuttle Discovery 48 space shuttle Endeavour 48 Kibo lab 48 Space Shuttle Discovery 48 Discovery astronauts 47 Robonaut 2 47 Alpha Magnetic Spectrometer 47 PASADENA Calif. NASA 47 Fyodor Yurchikhin 47 Space Agency 47 CAPE CANAVERAL Fla. 46 commander George Zamka 46 Dan Tani 46 Julie Payette 46 space shuttle 46 Shuttle Launch 46 Russian cosmonaut 46 Atlantis astronauts 46 Astronaut 45 NASA Kepler 45 orbital outpost 45 unmanned lunar 45 aboard Endeavour 45 Greg Chamitoff 45 orbiting 45 shuttle payload bay 45 Canadarm2 45 Mike Fincke 45 Phoenix lander 45 NASA astronaut 45 tourist Charles Simonyi 45 Sandra Magnus 45 Andrew Feustel 45 Shane Kimbrough 45 Peggy Whitson 45 named Kibo 45 Russian leased Baikonur 45 Robert Behnken 45 Harmony module 45 Japanese astronaut Koichi 45 Dragon capsule 45 Phoenix Mars lander 44 Eyharts 44 Space Station 44 Frank De Winne 44 astronaut Peggy Whitson 44 NASA Space Shuttle 44 ktul LLC 44 CAPE CANAVERAL 44 Rick Mastracchio 44 robotic spacecraft 44 commander Peggy Whitson 44 Tracy Caldwell Dyson 44 EDWARDS AIR FORCE BASE 44 Japan Kibo lab 44 Donald Pettit 44 Soyuz rocket 44 © Sapa 44 orbiting outpost 44 Mission Specialists 44 astronauts 43 spacewalk 43 manned spacecraft 43 Mars orbiter 43 Bob Thirsk 43 Nasa 43 Kazakh steppe