Related by context. Frequent words. (Click for all words.) 51 Endeavour 42 Shuttle Discovery 42 Space Shuttle 41 aboard Endeavour 41 Shuttle astronauts 41 International Space Station 41 Discovery payload bay 41 space shuttles 40 orbiter 40 Space Shuttle Endeavour 40 shuttle 40 commander George Zamka 40 space shuttle 40 Shuttle 40 Space shuttle Endeavour 40 Space Shuttle Discovery 40 cheap 40 Piers Sellers 40 Solar Array 40 Russian Soyuz spacecraft 39 Astronauts 39 shuttle Atlantis 39 SpaceX Falcon 9 39 spacecraft 39 space shuttle Endeavour 39 shuttle payload bay 39 Shuttle Atlantis 39 Mission Specialists 39 Julie Payette 38 Space Shuttle Atlantis 38 Space Station 38 Shuttle Endeavour 38 Soyuz spacecraft 38 space shuttle Discovery 38 liftoff 38 blastoff 38 Ariane rocket 38 exorbitantly expensive 38 Alexander Kaleri 38 interplanetary spacecraft 38 Shuttle Launch 38 Space shuttle Atlantis 38 spaceplane 38 pad #A 38 Space shuttle Discovery 38 Spacecraft 38 astronauts 37 space shuttle Atlantis 37 heat shield 37 shuttle Endeavour 37 rocket boosters 37 Greg Chamitoff 37 resistant tiles 37 Russian Soyuz capsules 37 Tim Kopra 37 Soyuz rocket 37 astronaut 37 Spacewalking astronauts 37 Oleg Skripochka 37 shuttle thermal tiles 37 Oleg Kononenko 37 cheapies 36 Hobaugh 36 cheep 36 Soyuz 36 Doug Wheelock 36 Rick Mastracchio 36 PSLV C# 36 Bill Gerstenmaier NASA 36 Nasa 36 Launch Vehicle 36 payloads 36 astronaut Peggy Whitson 36 Soyuz capsule carrying 36 outrageously expensive 36 shuttle Discovery 36 Atlantis astronauts 36 Baikonur Kazakhstan 36 spaceship 36 Japanese astronaut Koichi 36 shuttle thermal shielding 36 Orbiter 36 Discovery STS 36 undock 36 chief Anatoly Perminov 36 Nicole Stott 35 undocking 35 Lee Archambault 35 Soyuz craft 35 Mikhail Kornienko 35 Dragon capsule 35 payload bay 35 Russian Soyuz rocket 35 manned spaceship 35 orbit 35 space 35 Mike Suffredini NASA 35 Fyodor Yurchikhin 35 commander Peggy Whitson 35 Discovery liftoff 35 stowage