Related by context. Frequent words. (Click for all words.) 50 Space Shuttle Atlantis 49 space shuttle Discovery 48 Space Shuttle Endeavour 48 shuttle 47 orbiter 47 Space Shuttle Discovery 45 International Space Station 45 spacecraft 45 shuttle Discovery 45 orbital 45 Lee Archambault 45 space shuttle Endeavour 44 Space shuttle Endeavour 44 Space shuttle Discovery 44 Shuttle Atlantis 44 Atlantis astronauts 43 shuttle Atlantis 43 space shuttle 43 Shuttle Discovery 43 Orion spacecraft 42 Launch Pad #A 42 Soyuz rocket 42 Discovery astronauts 42 space shuttle Atlantis 42 orbiters 41 Shuttle Endeavour 41 NASA 41 undocking 41 Space shuttle Atlantis 41 spaceship 41 flyby 41 refueling 41 orbiting laboratory 41 Kennedy Space 41 Endeavour astronauts 40 Shuttle commander 40 orbit 40 Eric Boe 40 Yurchikhin 40 shuttle Endeavour 40 liftoff 40 blastoff 39 Orion capsule 39 Dragon spacecraft 39 flybys 39 prelaunch 39 shuttle missions 39 Doug Wheelock 39 Soyuz spacecraft 39 orbiting complex 39 Cape Canaveral 39 lunar orbit 39 Ares IX 39 orbiting outpost 38 Orbiter 38 orbiting spacecraft 38 solar arrays 38 astronauts aboard 38 spaceflight 38 Soyuz 38 astronauts 38 Cape Canaveral Fla. 38 Alan Poindexter 38 lander 38 lunar landing 38 orbiting shuttle 37 NASA astronaut 37 spacewalk 37 Russian Soyuz 37 Ellington Field 37 shuttle robotic arm 37 payload bay 37 cosmodrome 37 Space Station 37 shuttle astronauts 37 Russian Soyuz capsule 37 docking 37 commander Peggy Whitson 37 Astronauts aboard 37 solid rocket boosters 37 aboard Endeavour 37 Mars lander 37 Shuttle 37 Hubble Space Telescope 37 Russian Soyuz rocket 37 lunar missions 37 Brent Jett 37 Robert Behnken 36 countdown 36 Mission Control 36 heat shield 36 Spacecraft 36 Spaceport 36 spaceport 36 undock 36 Endeavour 36 Launch Complex 36 Perminov 36 Soyuz capsule 36 orbital outpost 36 Atlas V