Related by context. Frequent words. (Click for all words.) 80 Space shuttle Endeavour 78 Space shuttle Atlantis 76 Shuttle Discovery 76 space shuttle Discovery 75 Space Shuttle Atlantis 72 Shuttle Atlantis 72 Shuttle Endeavour 70 space shuttle Endeavour 70 shuttle Discovery 69 Space Shuttle Discovery 69 Space Shuttle Endeavour 69 space shuttle Atlantis 66 shuttle Atlantis 65 shuttle Endeavour 64 International Space Station 60 Endeavour 59 undock 57 orbiting outpost 57 Soyuz capsule 56 space shuttle 56 shuttle 55 Atlantis 54 orbiter 54 Discovery astronauts 54 Soyuz spacecraft 54 orbital outpost 54 aboard Endeavour 53 Baikonur Cosmodrome 53 Cape Canaveral 53 Endeavour astronauts 52 orbiting laboratory 52 orbit 52 Russian Soyuz capsule 52 spacecraft 52 Atlantis astronauts 51 Soyuz TMA 51 astronauts 50 CAPE CANAVERAL 50 Cape Canaveral Fla. 50 lunar orbit 50 Cape Canaveral Air Force 50 Russian Soyuz spacecraft 50 shuttle astronauts 50 undocking 50 space shuttles 50 Baikonur cosmodrome 49 CAPE CANAVERAL Fla. 49 Astronauts 49 Kennedy Space 49 Wakata 49 spaceship 49 liftoff 48 Tracy Caldwell Dyson 48 Hubble Space Telescope 48 Space Shuttle 48 spacewalk 48 NASA astronaut 47 Soyuz 47 Discovery 47 payload bay 47 spacewalks 47 NASA 47 shuttle missions 47 Chamitoff 47 orbiting 47 Sunita Williams 47 Russian cosmonauts 46 blastoff 46 launch pad 46 orbiting lab 46 Flight Engineer 46 Michael Lopez Alegria 46 Launch Complex 46 shuttle fleet 46 Phoenix Mars Lander 46 Mike Fincke 46 Cassini spacecraft 45 orbiters 45 Space Agency 45 Mark Polansky 45 Nasa 45 Space Station 45 Shuttle 45 Atlas V 45 director Mike Leinbach 44 STS 44 Sriharikota 44 By Irene Klotz 44 astronauts aboard 44 Ares IX 43 solid rocket boosters 43 docking port 43 Ariane 5 43 Liftoff 43 Vandenberg Air Force Base 43 Saturn moon 43 MESSENGER 43 astronaut 43 Spaceport 43 Spacecraft 43 Hayabusa