Related by context. Frequent words. (Click for all words.) 53 Gehman 47 shuttle 46 orbiter 46 Weiler 46 Pettit 46 heat shield 46 liftoff 46 space shuttle 45 Burkhart 45 Logsdon 44 Poulos 44 NASA 44 Eberhart 44 Hale 44 Foust 44 Sallee 43 Fancher 43 Bolden 43 Herrington 43 Rhoades 43 Worden 43 Ramey 42 thermal blanket 42 Boyer 42 space shuttles 42 Goss 42 Parsons 42 Minnich 42 Haney 42 Babb 42 Garver 42 Donley 42 Moser 42 Keefer 42 Waggoner 42 Sattler 42 Headrick 41 Space Shuttle 41 space shuttle Discovery 41 McElroy 41 Kunkle 41 Hitt 41 Yeager 41 Bolen 41 Kistler 41 Shull 41 McDaniel 41 Whitlow 41 Borkowski 41 Reese 40 McGinnis 40 McLain 40 Harter 40 Robinette 40 Bair 40 Chamberlin 40 Hupp 40 spacecraft 40 Herring 40 Fincke 40 Wingo 40 Hamby 40 Lusk 40 Graber 40 Isom 40 Boatright 40 Shirey 40 Mission Control 40 Burkhalter 39 Hindman 39 McClure 39 Scroggins 39 Rader 39 Melcher 39 Clevenger 39 Vandenberg 39 Barger 39 Criswell 39 Dickman 39 Clouse 39 Daugherty 39 Eckert 39 Hubble 39 shuttle Discovery 39 McKnight 39 Farris 39 Olivas 39 Bruner 39 insulating foam 39 Chitwood 39 Schmitt 39 Covey 39 Hake 39 Shepard 39 STS 39 Bartel 39 Beckner 39 Pirtle 39 Orbiter 39 Putman 39 Schoonover