Related by context. Frequent words. (Click for all words.) 58 Bill Gerstenmaier NASA 57 LeRoy Cain 54 Readdy 51 Space Shuttle Discovery 51 liftoff 50 Space Shuttle Program 49 director Mike Leinbach 49 orbiter 49 heat shield 48 space shuttle 48 Leinbach 48 Mike Suffredini 48 Bill Gerstenmaier 48 space shuttle Discovery 47 Dittemore 47 Gerstenmaier 47 shuttle Endeavour 46 Space Shuttle Endeavour 46 Jean Jacques Dordain 46 NASA 45 Kathy Winters 45 Space Shuttle Atlantis 45 Ares IX 45 Mission Control 45 JAXA 45 Anatoly Perminov 45 Endeavour 45 Shuttle Discovery 45 Shenzhou VI 45 shuttle Discovery 44 space shuttle Endeavour 44 spacecraft 44 Shuttle Launch 44 spokesman Allard Beutel 44 Discovery astronauts 44 Shuttle Endeavour 43 Columbia Accident Investigation 43 blastoff 43 shuttle 43 Kostelnik 43 Shuttle astronauts 43 shuttle Atlantis 43 Nasa 43 Shenzhou VII 43 thermal tile 42 fiery gases 42 Mark Polansky 42 Rick Husband 42 undocking 42 space shuttle Atlantis 42 commander Rick Sturckow 42 Kennedy Space 42 shuttle Challenger 42 CAIB 41 LCROSS 41 LeRoy Cain chairman 41 Lee Archambault 41 Brent Jett 41 Shuttle Atlantis 41 Cape Canaveral Fla. 41 Endeavour belly 41 Phoenix lander 41 tank foam insulation 40 Space shuttle Endeavour 40 Stephen Frick 40 Kiran Rao 40 Space shuttle Discovery 40 Space shuttle Atlantis 40 Satish Dhawan Space 40 thermal shielding 40 Rick Mastracchio 40 Roscosmos 40 orbital debris 40 unmanned spacecraft 40 insulating foam 40 X #B 40 astronauts 40 Shuttle commander 40 Space Shuttle 40 micrometeorites 40 NASA Administrator 40 Perminov 40 Isro 39 Shuttle 39 ISRO 39 John Grunsfeld 39 Grunsfeld 39 Roskosmos 39 Eric Boe 39 shuttle missions 39 Gehman 39 International Space Station 39 thermal blanket 39 Huygens 39 Cassini 39 Hoshide 38 spacewalker 38 Victoria Crater 38 Melvill 38 Soyuz 38 horizontal stabilizer