Related by context. Frequent words. (Click for all words.) 80 space shuttle Discovery 76 space shuttle Endeavour 73 shuttle Atlantis 73 shuttle Discovery 71 shuttle Endeavour 69 Space shuttle Discovery 68 Space Shuttle Discovery 67 Space shuttle Endeavour 65 International Space Station 64 Space shuttle Atlantis 63 space shuttle 61 shuttle 61 orbiter 61 Atlantis astronauts 61 Endeavour 61 Discovery astronauts 60 astronauts 59 Atlantis 57 shuttle astronauts 57 orbiting outpost 57 Soyuz capsule 56 undock 56 spacecraft 56 Kennedy Space 56 Endeavour astronauts 55 liftoff 55 Cape Canaveral Fla. 55 spacewalk 54 NASA 54 Astronauts 53 astronauts aboard 52 CAPE CANAVERAL Fla. 52 Soyuz spacecraft 52 Cape Canaveral 52 spacewalking astronauts 52 shuttle fleet 52 space shuttles 52 Soyuz TMA 51 spaceship 51 Soyuz 51 Hubble Space Telescope 51 heat shield 51 launch pad 50 Space Station 50 CAPE CANAVERAL 50 spacewalks 50 Nasa 50 orbiters 50 orbit 49 thermal blanket 49 undocking 49 NASA astronaut 48 ISS 48 Baikonur Cosmodrome 48 lander 48 Mission Control 48 astronaut 48 shuttle missions 48 Space Shuttle 48 solar arrays 47 Russian Soyuz spacecraft 47 spacewalkers 47 Cape Canaveral Air Force 47 orbiting lab 47 Phoenix Mars Lander 47 orbiting 46 insulating foam 46 Shuttle 46 Baikonur cosmodrome 45 Orbiter 45 crewmates 45 Gerstenmaier 45 Discovery 45 Mars rover 45 Sriharikota 45 Stormy weather 45 Russian Soyuz 45 docking port 45 Dextre 44 Space Agency 44 foam insulation 44 Atlas V 44 Hubble telescope 44 solid rocket boosters 44 Russian cosmonauts 44 Hubble 44 Chamitoff 44 Flight controllers 44 spacewalking 44 Flight Engineer 44 STS 43 thermal tiles 43 spacewalker 43 spacesuit 43 Cassini spacecraft 43 robotic arm 43 director Mike Leinbach 42 airlock 42 rotary joint 42 LCROSS 42 Space Shuttle Columbia