Related by context. Frequent words. (Click for all words.) 59 Piers Sellers 58 Ron Garan 57 astronaut Ilan Ramon 57 Gene Cernan 57 Robert Curbeam 56 Onizuka 56 Mission Specialists 56 Ken Bowersox 55 NASA Astronaut 55 Tim Kopra 55 Kalpana Chawla 55 Ilan Ramon 55 spaceflight participant 55 Koichi Wakata 55 lunar module pilot 54 NASA astronaut corps 54 Nicole Stott 53 Alexander Kaleri 53 Frank Borman 53 astronaut 53 Soyuz capsule carrying 52 Gus Grissom 52 Japanese astronaut Koichi 52 Leland Melvin 52 Mercury Gemini 51 NASA astronaut 51 Timothy Kopra 51 Russian cosmonaut Gennady Padalka 51 Roberto Vittori 51 astronauts 51 Mikhail Kornienko 51 Joseph Acaba 51 Space Shuttle Endeavor 51 Russian cosmonaut Yuri Malenchenko 50 Joan Higginbotham 50 Israeli astronaut Ilan 50 Soviet cosmonaut Yuri Gagarin 50 Owen Garriott 50 Randolph Bresnik 50 Oleg Skripochka 50 Cady Coleman 50 Spy Satellite 49 astronaut Leroy Chiao 49 Japanese astronaut Takao 49 Yuri Malenchenko 49 Julie Payette 49 Shuttle astronauts 49 #th Airlift Squadron [002] 49 Endeavour STS 49 space shuttle 48 orbited Earth 48 Roger Chaffee 48 Rex Walheim 48 Discovery undocked 48 Endeavour docked 48 Greg Chamitoff 48 International Space Station 48 Hokule'a 48 astronaut Peggy Whitson 48 Judith Resnik 48 Astronaut 48 spaceflight 48 Japanese astronaut Soichi 48 Resourcesat 2 48 Space Shuttle Discovery 47 ISS Expedition 47 Nie Haisheng 47 June Scobee Rodgers 47 cosmonaut Yuri Gagarin 47 Russian Soyuz TMA 47 Christa McAuliffe backup 47 JPL manages 47 Commander Gennady Padalka 47 Russian Gennady Padalka 47 Robert Satcher 47 Apollo astronauts 47 crewmen aboard 47 TJ Creamer 47 Gennady Padalka 47 Eric Boe 47 Space Shuttle Columbia 47 Baikonur Kazakhstan 47 Pavel Vinogradov 47 Valery Tokarev 47 shuttle undocked 47 Gregory Chamitoff 46 Zhai Zhigang 46 teacher Christa McAuliffe 46 cosmonaut training 46 aboard Atlantis 46 Atlantis undocked 46 Mikhail Tyurin 46 Space Shuttle Endeavour 46 Sergei Volkov 46 Goheung 46 manned spacecraft 46 Christa McAuliffe 46 Navy Seabee 46 Space Shuttle 46 Megan McArthur 46 Italian Roberto Vittori