Related by context. Frequent words. (Click for all words.) 48 astronaut Sunita Williams 46 NASA astronaut 45 Nicole Stott 45 Sunita Williams 42 astronaut 41 NASA Astronaut 41 Lee Archambault 39 Andrew Feustel 39 crewmates 38 William Oefelein 38 Flight Engineer 38 Sandra Magnus 37 Lopez Alegria 37 Michael Lopez Alegria 37 crewmember 37 Astronaut 36 John Grunsfeld 36 Mission Specialists 36 Space Shuttle Endeavour 36 Malenchenko 36 Space Shuttle Discovery 36 crewmembers 36 crewmate 36 commander Rick Sturckow 36 Christer Fuglesang 35 crewmen 35 Eileen Collins 35 Anousheh Ansari 35 Michael Foale 35 Kalpana Chawla 35 spacewalking 35 Oleg Kotov 34 Daniel Tani 34 space shuttle Discovery 34 Tracy Caldwell Dyson 34 astronaut Buzz Aldrin 34 Shuttle Atlantis 34 Mike Fincke 34 space shuttle Endeavour 33 astronauts 33 Shuttle Endeavour 33 oarsman 33 International Space Station 33 crewman 33 Eric Boe 32 shuttle Endeavour 32 Thomas Reiter 32 Russian Soyuz rocket 32 spacewalker 32 aboard Endeavour 32 aboard 32 Shuttle commander 32 spacemen 32 Kotov 32 Wakata 32 Mark Polansky 32 Kazakh steppe 31 crew 31 Caldwell Dyson 31 glider pilot 31 orbiting laboratory 31 fellow 31 sailor 31 space shuttle 31 BAIKONUR Kazakhstan 31 shuttle Discovery 31 Fincke 31 commander Peggy Whitson 31 Russian cosmonauts 31 Melroy 30 fighter pilot 30 Douglas Wheelock 30 Fuglesang 30 Padalka 30 cosmonaut 30 astronaut corps 30 Rep. Nick Lampson 30 Stefanyshyn Piper 30 Shuttle Discovery 29 Endeavour astronauts 29 space shuttle Atlantis 29 orbital outpost 29 Yurchikhin 29 Space shuttle Discovery 29 Atlantis astronauts 29 Krikalev 29 shuttle astronauts 29 Russian Soyuz spacecraft 29 shuttle Atlantis 29 Hobaugh 28 Robonaut 2 28 Foale 28 Soichi Noguchi 28 navigator 28 Soyuz craft 28 Space Shuttle Atlantis 28 Space shuttle Atlantis 28 Doug Wheelock 28 Soyuz capsule 28 spaceflights 28 Astronauts