Related by context. Frequent words. (Click for all words.) 62 heat shield 62 thermal tiles 60 thermal tile 55 orbiter 53 insulating foam 52 delamination 52 liftoff 50 shuttle thermal shielding 50 thermal blanket 49 Endeavour belly 49 orbital debris 48 gap fillers 48 spacecraft 48 tank foam insulation 48 space shuttle 47 shuttle Discovery 47 insulation foam 47 ice frost ramps 46 NASA 46 shuttle disintegrated 46 foam insulation 46 shuttle 46 gap filler 46 structural integrity 46 Dittemore 45 manager Ron Dittemore 45 Hubble servicing 45 orbiters 45 External Tank 45 orbiting spacecraft 45 shuttle missions 45 undocking 44 spokesman Allard Beutel 44 Space Shuttle Discovery 44 nose cone 44 micrometeorites 44 landing gear 44 Space Shuttle Atlantis 44 shuttle Atlantis 44 lander 43 space shuttle Discovery 43 fuselage 43 Michoud Assembly Facility 43 Nasa 43 spacesuits 43 thermal shielding 43 Lyndin 42 astronauts 42 Space Shuttle Program 42 foam 42 space shuttles 42 horizontal stabilizer 42 Orbiter 42 orbiting telescope 42 fiery gases 42 corrosion 42 outermost layer 42 Launch Complex 41 nosecone 41 Mission Specialists 41 Andrew Feustel 41 Shuttle Atlantis 41 Eric Boe 41 STS 41 Space Shuttle Endeavour 41 Martian surface 41 Readdy 41 Cape Canaveral Fla. 40 Gerstenmaier 40 protective coating 40 Columbia Accident Investigation 40 shuttle Challenger 40 Ares IX 40 Discovery astronauts 40 Soyuz capsule 40 Mars rover 40 JWST 40 space shuttle Endeavour 40 Kostelnik 40 cowling 40 LeRoy Cain chairman 40 Space Shuttle Columbia 40 CAIB 40 International Space Station 40 ablative 40 Taurus XL rocket 40 exterior 39 outer shell 39 Mike Suffredini 39 orbiting shuttle 39 Kennedy Space 39 Hubble telescope 39 hairline cracks 39 Orion spacecraft 39 rotary joint 39 space shuttle Atlantis 39 sidewall 39 Shuttle commander 39 Kaleri 39 abutment 39 spacewalking astronaut