Related by context. Frequent words. (Click for all words.) 73 Soyuz spacecraft 71 Soyuz 66 Russian Soyuz spacecraft 65 International Space Station 64 Soyuz TMA 62 shuttle Atlantis 62 shuttle Discovery 61 astronauts 61 space shuttle Discovery 61 Space Shuttle Discovery 61 spacecraft 61 Russian Soyuz 59 shuttle Endeavour 59 Russian cosmonauts 59 orbiter 58 Space Shuttle Atlantis 58 space shuttle Endeavour 58 Baikonur Cosmodrome 57 shuttle 57 spaceship 57 orbiting laboratory 57 space shuttle Atlantis 57 Space shuttle Discovery 56 space shuttle 56 orbiting lab 56 Baikonur 56 orbit 56 spacewalk 55 Atlantis astronauts 55 orbiting outpost 55 Baikonur cosmodrome 55 Padalka 54 Space shuttle Endeavour 54 spacewalks 54 undocking 54 shuttle astronauts 53 Endeavour astronauts 53 shuttle missions 53 Endeavour 53 undock 52 Discovery astronauts 52 Space shuttle Atlantis 52 manned spacecraft 52 cosmonauts 52 spacewalking 51 cosmonaut 51 Space Agency 51 spacesuits 51 liftoff 51 Lopez Alegria 50 ISS 50 Wakata 50 astronauts aboard 50 astronaut 50 thrusters 50 Space Station 50 orbiting 49 Astronauts 49 Cape Canaveral Fla. 49 Atlantis 49 Flight Engineer 49 spacewalking astronauts 49 payload bay 49 spacewalkers 48 airlock 48 orbiters 48 shuttle fleet 48 Gerstenmaier 48 lander 48 spacesuit 48 spaceflight 48 NASA astronaut 47 NASA 47 crewmates 47 JAXA 47 blastoff 47 Mission Control 46 Chamitoff 46 space shuttles 46 heat shield 46 Columbia disintegrated 46 Mike Fincke 46 spacewalker 46 Shenzhou 45 Space Shuttle 45 Fincke 45 manned spaceflight 45 human spaceflight 45 Thomas Reiter 45 Ariane 5 45 Space Shuttle Columbia 44 Yuri Gagarin 44 Hayabusa 44 Atlas V 44 Orbiter 44 GSLV 43 booster rocket 43 lunar landing 43 lunar surface 43 Nasa 43 Sriharikota