Related by context. Frequent words. (Click for all words.) 61 NASA astronaut 59 astronaut 56 NASA Astronaut 53 Leland Melvin 52 Astronaut 51 Krikalev 48 Julie Payette 48 Mission Specialists 48 astronaut Julie Payette 48 Alexander Kaleri 48 Piers Sellers 48 Glenn 48 Tim Kopra 46 NASA astronaut corps 46 Koichi Wakata 46 Doug Wheelock 46 Fyodor Yurchikhin 46 Naval Academy graduate 45 Edwin Buzz Aldrin 45 Russian cosmonaut Yuri Malenchenko 45 Nicole Stott 45 Flight Engineer 45 Buzz Aldrin 44 Soyuz capsule carrying 44 Sandra Magnus 44 Shane Kimbrough 44 Oleg Kononenko 44 crewmates 44 astronaut Peggy Whitson 43 NASA 43 Richard Linnehan 43 Astrophysicist 43 Acaba 43 Joan Higginbotham 42 astronaut Buzz Aldrin 42 Soviet cosmonaut Yuri Gagarin 42 astronaut Roberto Vittori 42 Andrew Feustel 42 Oleg Skripochka 42 Mikhail Kornienko 41 Metcalf Lindenburger 41 Christa McAuliffe backup 41 Peggy Whitson 41 Stefanyshyn Piper 41 Eugene Cernan 41 Japanese astronaut Soichi 41 Nasa 41 Douglas Wheelock 41 John 41 Rex Walheim 41 Japanese astronaut Koichi 40 Yang Liwei 40 Space Shuttle Endeavour 40 spaceman 40 spacesuit 40 tourist Charles Simonyi 40 Gorie 40 Soichi Noguchi 40 Megan McArthur 40 Lee Archambault 40 Eric Boe 40 Heidemarie Stefanyshyn Piper 40 Frank De Winne 40 Commander Eileen 40 Dan Tani 39 space shuttle 39 Lopez Alegria 39 cosmonaut 39 spacewalking 39 SPACE.com 39 Daniel Tani 39 Dennis Tito 39 Jet Propulsion Lab 39 Vinogradov 39 Aldrin 39 Michael Foale 39 Today Birthdays Former 39 Romanenko 39 Sturckow 39 Shuttle astronauts 39 ESA astronaut 39 Gregory 39 Rick Mastracchio 39 Astronaut Buzz Aldrin 39 Alan Poindexter 38 Virts 38 Shuttle commander 38 astronauts 38 crewmate 38 Robert Behnken 38 Russian cosmonaut 38 astronaut Daniel Tani 38 Neil Armstrong 38 space shuttle Discovery 38 Space Agency 38 teacher Christa McAuliffe 38 Astronauts aboard 38 Terry 38 aboard Endeavour 38 Greg Chamitoff 38 Tony Antonelli