Related by context. Frequent words. (Click for all words.) 66 heat shield 64 orbiter 62 thermal tiles 59 thermal tile 59 spacecraft 56 shuttle 54 Endeavour belly 54 gashed wing 54 thermal blanket 54 shuttle disintegrated 54 liftoff 53 tank foam insulation 52 insulating foam 52 space shuttle 52 insulation foam 52 superheated gases 52 booster rockets 51 foam insulation 51 thermal shielding 51 meteoroid 51 Dittemore 50 orbiters 50 shuttle payload bay 50 manager Ron Dittemore 50 foam 50 space shuttle Atlantis 50 Readdy 50 space shuttle Discovery 50 NASA 50 External Tank 49 atmospheric gases 49 Discovery liftoff 49 shuttle thermal shielding 49 shuttle Discovery 49 nosecone 49 Discovery astronauts 49 orbit 48 Orbiter 48 orbiting observatory 48 Earth magnetosphere 48 lander 47 fiery gases 47 solid rocket boosters 47 Taurus XL rocket 47 nose cone 47 thruster 47 spacecrafts 47 Nasa 47 astronauts 47 thrusters 47 Columbia Accident Investigation 47 delamination 47 fuselage 47 shuttle Atlantis 47 shuttle Challenger 47 Space Shuttle Discovery 46 space shuttle Endeavour 46 space shuttles 46 Space Shuttle Atlantis 46 Spacewalkers 46 Shuttle astronauts 46 Mars orbiter 46 orbiting spacecraft 46 Soyuz rocket 46 Shuttle 46 gap fillers 46 Gerstenmaier 46 spokesman Allard Beutel 46 Ariane rocket 46 booster rocket 46 micrometeorites 46 shuttle missions 45 orbital module 45 underside 45 Earth orbit 45 reentry 45 landing gear 45 Space Shuttle 45 Soyuz 45 Shuttle Atlantis 45 engine compartment 45 fairings 45 undocking 45 Space Shuttle Endeavour 45 martian surface 45 LeRoy Cain chairman 45 polar orbit 45 hull 45 orbiting complex 44 Hubble servicing 44 radome 44 spacewalkers 44 spaceship 44 rocket boosters 44 Flight Readiness 44 tiles 44 Orion spacecraft 44 gap filler 44 ice frost ramps 44 Phoenix Mars lander 44 orbiting