Related by context. Frequent words. (Click for all words.) 61 heat shield 52 thermal tiles 51 thermal tile 46 orbiter 43 insulating foam 43 liftoff 42 foam insulation 41 Discovery astronauts 41 thermal blanket 41 space shuttle Discovery 41 fuselage 41 shuttle Atlantis 40 payload bay 40 spacecraft 40 Space shuttle Atlantis 40 hull 40 shuttle Discovery 39 Gerstenmaier 39 atmospheric gases 39 Space Shuttle Atlantis 39 welds 39 Space Shuttle Endeavour 39 shuttle robotic arm 39 orbital debris 39 Atlantis astronauts 39 space shuttle Atlantis 39 spacewalking astronauts 38 space shuttle Endeavour 38 Shuttle Endeavour 38 gap fillers 37 Martian atmosphere 37 gap filler 37 shuttle astronauts 37 shuttle Endeavour 37 Columbia disintegrated 37 director Mike Leinbach 37 shuttle 37 Ares IX 37 JAXA 36 Columbia Accident Investigation 36 aboard Endeavour 36 Endeavour astronauts 36 Shuttle Discovery 36 bulkheads 36 booster rockets 36 LeRoy Cain 36 thermal insulation 36 landing gear 36 undocking 36 Rolls Royce engines 35 Mars Reconnaissance Orbiter 35 engine compartment 35 Curbeam 35 Space Shuttle Discovery 35 spacesuits 35 nicks 35 Sumwalt 35 Shuttle Atlantis 35 containment vessel 35 gouges 35 Parazynski 35 dings 35 orbiters 35 Soyuz capsule 35 Soyuz 35 solid rocket boosters 34 undock 34 Flight controllers 34 underside 34 space shuttle 34 structural integrity 34 foam 34 orbiting laboratory 34 Saturn rings 34 Phoenix lander 34 rudder 34 Saturn moon 34 Space shuttle Discovery 34 Endeavour 34 shuttle missions 34 protective coating 34 spacewalkers 34 Martian soil 34 NASA 33 Soyuz TMA 33 airframe 33 blastoff 33 Dittemore 33 gashes 33 caulk 33 gash 33 Qantas A# 33 undercarriage 33 nose cone 33 Suffredini 33 rotary joint 33 undocked 33 astronauts aboard 33 astronauts 33 liquid hydrogen 33 Space shuttle Endeavour