Related by context. Frequent words. (Click for all words.) 49 Shuttle Launch 49 Lee Archambault 46 Dorothy Metcalf Lindenburger 46 Shuttle astronauts 46 Challenger exploded 45 Alan Poindexter 45 Kenneth Ham 45 Eileen Collins 44 Rick Husband 43 Mike Melvill 43 Eric Boe 43 June Scobee Rodgers 43 commander George Zamka 43 Brent Jett 43 Space Shuttle Endeavour 42 Shuttle Discovery 42 ISS Expedition 41 Mark Polansky 41 Shuttle Atlantis 41 Shuttle Endeavour 41 Mission Specialists 41 SpaceX Falcon 9 41 Launch Pad #B 41 Space Shuttle 41 NASA Space Shuttle 41 Leland Melvin 40 Space Shuttle Atlantis 40 space shuttle 40 Discovery STS 40 Shuttle 40 Space Shuttle Discovery 40 shuttle Challenger 40 Mission Control 40 Doug Wheelock 39 Mike Leinbach 39 Piers Sellers 39 Commander Eileen 39 Spacewalk 39 Alexander Kaleri 39 Ares IX rocket 39 VAFB 39 pad #A 39 Richard Linnehan 38 Astronauts 38 Gorie 38 Spacewalkers 38 Tim Kopra 38 space shuttle Discovery 38 Caldwell Dyson 38 blastoff 38 Douglas Wheelock 38 copilot 38 Mars Lander 38 Pad #A 38 NASA astronaut corps 37 John Grunsfeld 37 Shenzhou V 37 radioed 37 Robert Behnken 37 Nasa 37 shuttle 37 Autopilot 37 astronauts 37 Cosmonaut 37 godspeed 37 Mike Fincke 37 NASA Astronaut 37 commander Peggy Whitson 36 Space Station 36 NASA 36 space shuttle Endeavour 36 Rex Walheim 36 payload bay doors 36 NASA spaceport 36 Crewmen 36 KENNEDY SPACE CENTER 36 ion propulsion 36 Fuel Tank 36 seaside pad 36 Dan Tani 35 director Mike Leinbach 35 Peggy Whitson 35 Space shuttle Atlantis 35 ripcord 35 throttle 35 Baikonur Kazakhstan 35 Rick Mastracchio 35 Space Shuttle Columbia 35 Endeavour 35 Melroy 35 liftoff 35 director Holly Ridings 35 Sturckow 35 Tony Antonelli 35 Michael Lopez Alegria 35 Soyuz TMA 35 Kennedy Space 35 Wallops Flight Facility 35 Astronaut 35 wild blue yonder 35 astronaut