Related by context. Frequent words. (Click for all words.) 69 gashed wing 57 shuttle disintegrated 55 atmospheric gases 54 heat shield 52 tank foam insulation 51 Endeavour belly 51 orbiter 50 insulation foam 49 Columbia disintegrated 49 insulating foam 47 liftoff 46 thermal tile 46 space shuttle Discovery 46 astronauts 46 micrometeorites 46 shuttle Challenger 45 astronauts aboard 45 Space Shuttle Columbia 45 Taurus XL rocket 45 Discovery liftoff 44 Space Shuttle Discovery 44 foam insulation 44 spacecraft 44 thermal shielding 44 Shuttle Discovery 44 space shuttle Atlantis 44 shuttle thermal shielding 43 space shuttle 43 thermal tiles 43 Earth magnetosphere 42 Martian atmosphere 42 Soyuz capsule 41 shuttle Atlantis 41 shuttle 41 Cape Canaveral Fla. 41 shuttle missions 41 Space Shuttle Atlantis 41 shuttle Discovery 41 meteoroids 41 Space Shuttle Endeavour 40 reentry 40 Shuttle astronauts 40 Apollo astronauts 40 Astronauts 40 orbital module 40 Discovery payload bay 40 outer layers 40 Space shuttle Discovery 40 shuttle astronauts 39 lunar orbit 39 shuttle Endeavour 39 comet nucleus 39 space shuttle Endeavour 39 Japanese astronaut Koichi 39 comet dust 39 shuttle payload bay 39 undock 39 Harmony module 39 NASA spaceport 38 foam 38 Mission Specialists 38 Mercury Gemini 38 hydrazine 38 Zamka 38 Endeavour 38 airlock 38 Bill Gerstenmaier NASA 38 orbiters 38 International Space Station 38 Tracy Caldwell Dyson 38 Shuttle Launch 37 Orion spacecraft 37 shuttle fleet 37 lunar surface 37 Readdy 37 Columbia Accident Investigation 37 orbital debris 37 Shuttle Endeavour 37 6 #/#-hour spacewalk 37 Lyndin 37 Endeavour astronauts 37 Mikhail Kornienko 37 Soyuz TMA 37 Russian Soyuz rocket 37 impactor 37 orbiting telescope 37 Sandra Magnus 37 Shuttle Atlantis 37 Dragon spacecraft 37 Baikonur Cosmodrome 37 Challenger exploded 37 Discovery astronauts 37 astronaut Paolo Nespoli 37 Orion capsule 37 orbiting observatory 37 Launch Complex 37 External Tank 37 Space shuttle Atlantis 37 Solar Dynamics 37 spaceship 37 nose cone