Related by context. Frequent words. (Click for all words.) 56 liftoff 50 shuttle missions 48 space shuttle 46 orbiter 46 spacecraft 44 flybys 44 NASA 44 blastoff 43 Soyuz 43 orbiters 43 Space Shuttle Discovery 43 landings 42 shuttle 42 spaceflight 42 space shuttle Discovery 42 flyby 41 heat shield 41 lunar landing 41 Ares IX 41 astronauts 41 cosmonauts 40 shuttle Discovery 40 undocking 40 solid rocket boosters 40 Space Shuttle 40 splashdown 40 shuttle Atlantis 40 Earth orbit 40 Gerstenmaier 39 Space Shuttle Atlantis 39 Discovery astronauts 39 orbit 39 orbital 39 spacewalks 39 LeRoy Cain 39 insulating foam 39 rocket booster 39 Cape Canaveral Fla. 39 foam 39 space shuttles 38 Soyuz capsule 38 Cape Canaveral 38 GSLV 38 Rick Husband 38 sub orbital 38 Nasa 37 JAXA 37 NASA Administrator 37 orbiting 37 Cape Canaveral Air Force 37 thermal tiles 37 Space Shuttle Endeavour 37 Eileen Collins 37 cosmonaut 37 human spaceflight 37 Baikonur 37 Endeavour 37 orbiting lab 37 ISRO 37 LCROSS 37 SpaceX 37 International Space Station 37 Space Agency 36 Orbiter 36 spacewalkers 36 weightlessness 36 Space Station 36 Atlantis astronauts 36 astronaut 36 Isro 36 Kennedy Space 36 space shuttle Endeavour 36 Nespoli 36 Soyuz spacecraft 36 PSLV 36 spaceship 35 spacewalk 35 shuttle Endeavour 35 Chandrayaan 35 zero gravity 35 director Mike Leinbach 35 booster rocket 35 Huygens 35 Sea Launch 35 Perminov 35 rocket motors 35 Kostelnik 35 landing 35 Baikonur Cosmodrome 35 lunar orbit 35 weightless 35 Mission Control 35 Atlas V 34 suborbital 34 docking 34 space shuttle Atlantis 34 Columbia Accident Investigation 34 spacesuit 34 SpaceShipTwo 34 moon landings 34 Space Shuttle Columbia