Related by context. Frequent words. (Click for all words.) 62 Shuttle astronauts 61 Astronauts aboard 59 Space shuttle Atlantis 59 Spacewalking astronauts 59 space shuttle Discovery 58 Dec 58 Two spacewalking astronauts 57 Space shuttle Discovery 57 space shuttle Endeavour 57 Shuttle Atlantis 57 Tim Kopra 57 Endeavour astronauts 57 Discovery astronauts 56 Shuttle Discovery 56 International Space Station 56 shuttle Discovery 56 Space Shuttle Atlantis 55 space shuttle Atlantis 54 Nov 54 orbiting complex 54 Space Shuttle Endeavour 54 Space shuttle Endeavour 54 Shuttle Endeavour 54 shuttle Atlantis 54 OAKLAND CALIF 53 Spacewalkers 53 Atlantis astronauts 52 Astronauts 52 Retired Brig 52 Space Shuttle Discovery 52 shuttle astronauts 52 astronauts 51 shuttle Endeavour 51 By Irene Klotz 51 Feb 51 space shuttle 51 Mars rover Opportunity 50 Oct 50 orbiting observatory 50 NL Capsules 50 starter Wandy Rodriguez 50 Oleg Skripochka 50 Andrew Feustel 50 Rick Mastracchio 49 Nicole Stott 49 astronauts aboard 49 Baikonur Kazakhstan 49 commander Rick Sturckow 49 Photo Kathy Willens 48 micrometeorite damage 48 Discovery payload bay 48 PORT ST 48 Salvage crews 48 spacecraft 48 By KRISTIE RIEKEN 48 HOUSTON Yao Ming 48 orbiting outpost 48 Shuttle Launch 48 By Simon Cambers 48 Dragon capsule 48 orbiting shuttle 47 NASA astronaut 47 shuttle 47 PASADENA Calif. NASA 47 Fyodor Yurchikhin 47 shuttle underside 47 Hubble Space Telescope 47 aboard Endeavour 47 NASA 47 Oleg Kononenko 47 By Jennifer Coogan 47 Yurchikhin 47 Photo Patrick Semansky 47 KENNEDY SPACE CENTER 47 Stardust spacecraft 47 Mission Specialists 47 Russian Soyuz TMA 47 spacewalk 46 Endeavour 46 By Mendelson Tiu 46 Soyuz spacecraft 46 orbiter 46 Soyuz capsule carrying 46 Shane Kimbrough 46 Discovery liftoff 46 orbiting laboratory 46 spacewalking astronauts 46 By JENNIFER KAY 46 Leland Melvin 46 © Sapa 46 Shuttle commander 46 robotic spacecraft 46 NEWS VIDEO 46 PAUL SAKUMA 46 spaceship 46 astronaut Peggy Whitson 46 Rex Walheim 46 astronaut 46 Japanese astronaut Soichi 46 shuttle payload bay 46 Soviet cosmonaut Yuri Gagarin