Related by context. Frequent words. (Click for all words.) 61 NASA astronaut 59 Soviet cosmonaut Yuri Gagarin 59 NASA Astronaut 57 astronaut 55 Owen Garriott 54 Ron Garan 54 Alan Shepard 53 NASA astronaut corps 53 Edwin Buzz Aldrin 53 Virts 52 Astronaut 51 Piers Sellers 51 Christa McAuliffe backup 51 TJ Creamer 51 Dennis Tito 51 Tuskegee Airman 50 Sally Ride 50 Robert Curbeam 50 Leland Melvin 50 Eileen Collins 50 Japanese astronaut Koichi 50 Timothy Kopra 50 Astronaut Buzz Aldrin 50 Metcalf Lindenburger 49 astronaut Peggy Whitson 49 Yuri Gagarin 49 Tim Kopra 49 orbited Earth 49 Cady Coleman 49 Retired Brig 49 Dan Tani 49 Russian cosmonaut Yuri Malenchenko 49 Today Birthdays Former 48 Commander Peggy Whitson 48 Robert Satcher 48 Johns Hopkins Applied Physics 48 Satcher 47 Yang Liwei 47 Koichi Wakata 47 Nicole Stott 47 Soyuz capsule carrying 47 ISS Expedition 46 Julie Payette 46 Mercury Gemini 46 space shuttles Endeavour 46 Zhai Zhigang 46 Russian Gennady Padalka 46 Kalpana Chawla 46 Anousheh Ansari 46 Megan McArthur 46 Tuskegee Institute 46 Neil Armstrong 46 Buzz Aldrin 46 Dorothy Metcalf Lindenburger 46 Gregory Chamitoff 46 Greg Chamitoff 46 Alexander Kaleri 46 Peggy Whitson 45 astronaut Buzz Aldrin 45 space shuttle 45 Christa McAuliffe 45 International Space Station 45 Sergei Volkov 45 teacher Christa McAuliffe 45 Bolden 45 June Scobee Rodgers 45 Mission Specialists 45 astronaut Sunita Williams 45 ESA astronaut 44 Daniel Tani 44 Cernan 44 Space Shuttle Endeavour 44 Blasts Off 44 Charles Bolden 44 Bluford 44 Shuttle astronauts 44 Thurgood Marshall 44 astronaut Yang Liwei 44 Roberto Vittori 44 Ilan Ramon 44 Tuskegee Ala. 44 BAIKONUR Kazakhstan 44 Shane Kimbrough 44 COLBERT 44 Jared Leroy Mohler 44 Kenneth Bowersox 44 Oleg Skripochka 44 Sandra Magnus 44 Paolo Nespoli 43 Sunita Williams 43 astronauts 43 Gorie 43 astronaut Leroy Chiao 43 Russian cosmonaut Gennady Padalka 43 shuttle Discovery 43 Hobaugh 43 Sheikh Muszaphar Shukor 43 Space Shuttle Discovery 43 Mikhail Tyurin 43 Apollo lunar 43 Discovery STS