Related by context. Frequent words. (Click for all words.) 48 Space Shuttle Discovery 47 Space Shuttle Endeavour 47 space shuttle 47 Astronauts 47 astronaut 47 Astronaut 46 NASA 45 Shuttle Discovery 45 NASA astronaut 45 space shuttle Discovery 45 shuttle Atlantis 45 Space Shuttle Atlantis 44 astronauts 43 NASA Astronaut 43 CAPE CANAVERAL Fla. 43 shuttle 42 CAPE CANAVERAL 42 Space Shuttle 42 SPACE CENTER Houston 41 shuttle Discovery 41 KENNEDY SPACE CENTER 41 blastoff 41 spaceflights 41 Endeavour 40 Soyuz rocket 40 Shuttle Endeavour 40 spacecraft 40 BAIKONUR Kazakhstan 40 Discovery astronauts 40 space shuttle Atlantis 40 space shuttle Endeavour 40 International Space Station 40 Caldwell Dyson 40 Shuttle Atlantis 40 Nasa 40 spaceflight 40 astronauts aboard 40 spacesuit 39 commander Peggy Whitson 39 Space shuttle Discovery 39 liftoff 39 Discovery 39 Space Station 39 shuttle Challenger 39 spacewalking astronaut 39 orbit 39 Shuttle Launch 39 Yuri Gagarin 38 Baikonur Cosmodrome 38 Alan Shepard 38 Spacewalking astronauts 38 Sally Ride 38 spaceship 38 NASA Space Shuttle 38 Spacewalk 37 Lopez Alegria 37 Spacewalkers 37 Spaceflight 37 Cernan 37 Spacecraft 37 lunar landing 37 shuttle Endeavour 37 Shuttle 37 capsule 37 orbiter 37 Vinogradov 36 manned spacecraft 36 Eileen Collins 36 astronaut Buzz Aldrin 36 shuttle missions 36 Whitson 35 spacewalk 35 Russian Soyuz rocket 35 Space Shuttle Columbia 35 Foale 35 Gagarin 35 Andrew Feustel 35 Space shuttle Endeavour 35 Space shuttle Atlantis 35 Grunsfeld 35 space shuttles 34 Garan 34 Kennedy Space 34 lunar module 34 Space 34 lunar orbiter 34 Neil Armstrong 34 Cosmonaut 34 suborbital flight 34 spacewalker 34 Soyuz capsule 34 Cape Canaveral Fla. 34 spaceman 34 Mission Control 34 Hobaugh 33 unmanned spacecraft 33 Shuttle commander 33 Soyuz spacecraft 33 Space Exploration 33 Atlantis astronauts 33 human spaceflight