Related by context. Frequent words. (Click for all words.) 61 Koichi Wakata 60 astronaut 59 Soviet cosmonaut Yuri Gagarin 58 Yang Liwei 58 astronaut Peggy Whitson 56 astronaut Yang Liwei 55 NASA astronaut 55 Nie Haisheng 55 cosmonaut 55 Nicole Stott 54 Wakata 53 Astronaut 53 Kaguya 53 Shenzhou V 52 ESA astronaut 52 commander Peggy Whitson 52 Soichi Noguchi 52 So yeon 52 Hoshide 52 Sandra Magnus 52 NASA astronaut corps 51 Julie Payette 51 Peggy Whitson 51 Gregory Chamitoff 51 Japanese astronaut Soichi 51 lunar orbiter 51 Yuri Gagarin 51 spaceflight 51 International Space Station 51 Eyharts 51 Frank De Winne 51 Kalpana Chawla 50 manned spacecraft 50 Russian Soyuz spacecraft 50 taikonauts 50 Metcalf Lindenburger 50 astronauts 49 June Scobee Rodgers 49 JAXA 49 Japanese astronaut Koichi 49 unmanned lunar 49 NASA Astronaut 49 Greg Chamitoff 49 Bob Thirsk 49 Piers Sellers 49 Shenzhou VII 49 Oleg Skripochka 49 orbiting complex 48 space shuttle 48 Shuttle astronauts 48 Caldwell Dyson 48 Mikhail Kornienko 48 astronaut Julie Payette 48 Mission Specialists 48 Christa McAuliffe backup 48 aboard Endeavour 48 Michael Foale 48 Leroy Chiao 48 Agency JAXA 48 spaceship 48 spacecraft 48 shuttle missions 48 Soyuz rocket 48 Daniel Tani 48 astronaut Sunita Williams 47 Sheikh Muszaphar 47 Dan Tani 47 lunar orbit 47 manned spaceflight 47 Skylab 47 lunar probe 47 Oleg Kononenko 47 Mars Pathfinder 47 Noguchi 47 Andrew Feustel 47 Eileen Collins 47 astronaut Hans Schlegel 47 Christer Fuglesang 47 cosmonauts 47 Baikonur Kazakhstan 47 spacesuit 47 orbiting laboratory 47 spacewalking 46 Shenzhou VI 46 spacewalk 46 tourist Charles Simonyi 46 Hinode 46 Fumie Suguri 46 spaceplane 46 Anousheh Ansari 46 Soyuz capsule 46 Fuglesang 46 Tracy Caldwell Dyson 46 Sunita Williams 46 Hubble servicing 46 spacemen 46 Gagarin 45 Gorie 45 orbital outpost 45 shuttle Endeavour 45 Foale