Related by context. Frequent words. (Click for all words.) 68 Ellison Onizuka 68 Virgil I. 66 Wally Schirra 66 Virgil Gus Grissom 63 Gene Cernan 63 Fred Haise 62 Roman Romanenko 62 lunar module pilot 61 Frank Borman 60 Nasa astronaut 60 Gus Grissom 59 Soviet cosmonaut Yuri Gagarin 59 By Bennie Scarton 59 Edwin Buzz Aldrin 59 Owen Garriott 58 Ron Garan 58 Liu Boming 58 schoolteacher Christa McAuliffe 58 cosmonaut Yuri Gagarin 57 Astronauts inspect 57 Col. Ilan Ramon 57 Jack Swigert 57 Scott Crossfield 57 By Irene Klotz 56 spaceflight participant 56 spokesman Glenn Mahone 56 Dick Scobee 56 Apollo lunar 56 astronomer Edwin 56 Soviet cosmonaut 56 astronaut 55 orbited Earth 55 Space Shuttle Endeavor 55 Jared Leroy Mohler 55 Willie McCool 55 Nhat V. Meyer 55 NASA astronaut 55 shuttle Endeavor 55 Atlantis STS 55 Commander Gennady Padalka 54 Mission Specialists 54 Robert Satcher 54 Ken Bowersox 54 Pew Contributing Editor 54 Leland Melvin 54 manned orbital 54 Soyuz TMA #M 54 Dmitry Kondratyev 54 Mir Space Station 54 astronauts Douglas Wheelock 54 Rick Sturckow 54 photographer Rick Krolak 54 Shuttle Crew 53 commander Zhai Zhigang 53 Fei Junlong 53 Yury Gagarin 53 ISS Expedition 53 Abigail Mae Bresnik 53 Russian cosmonaut Yuri Lonchakov 53 Robert Curbeam 53 NASA Astronaut 53 Apollo missions 53 space shuttle 53 crewmembers aboard 52 Retired Brig 52 Joseph Acaba 52 Endeavour STS 52 Russian cosmonaut Valery Tokarev 52 On Orbit Status 52 Piers Sellers 52 pilot Charles Hobaugh 52 Messenger spacecraft 52 By Steve Walentik 52 Staff Sgts 52 Mercury Gemini 52 engineer Mikhail Tyurin 52 Yuri Malenchenko 52 astronaut Ilan Ramon 51 Astronauts Prepare 51 Discovery undocked 51 Marine Corps Pfc 51 Ric Feld 51 Tom Marshburn 51 Paul Pardoel 51 Tim Kopra 51 Lands Safely 51 astronauts 51 Japan Koichi Wakata 51 Sergei Volkov 51 Charles Dharapak Charles Dharapak 51 Alan Shepard 51 Majel Barrett Roddenberry 51 space shuttles Endeavour 51 Shenzhou spacecraft 51 Discovery STS 51 Gary Malerba 51 Space Shuttle Launch 50 Astronaut 50 E. Peary 50 Space Shuttle Discovery 50 NASA Stardust spacecraft