Related by context. Frequent words. (Click for all words.) 55 Shuttle Launch 51 Mission Specialists 49 Nicole Stott 48 Douglas Wheelock 48 Michael Foale 48 Caldwell Dyson 47 Spacewalk 47 Space Shuttle Endeavour 46 BAIKONUR Kazakhstan 45 Discovery astronauts 45 Tracy Caldwell Dyson 45 Oleg Kotov 45 Mission Control 45 Shuttle Atlantis 45 Space Station 45 Michael Lopez Alegria 44 Space Agency 44 cosmonaut 44 Yurchikhin 44 Space Shuttle Discovery 44 Wakata 44 Fuglesang 44 shuttle Atlantis 44 aboard Endeavour 44 Space Shuttle Atlantis 44 Eileen Collins 44 KENNEDY SPACE CENTER 44 Gagarin 44 Sandra Magnus 43 Anousheh Ansari 43 Rick Mastracchio 43 Atlantis astronauts 43 Padalka 43 space shuttle Discovery 43 spacemen 43 commander Rick Sturckow 43 Mike Fincke 43 Daniel Tani 43 Soyuz rocket 43 Astronaut 43 Astronauts aboard 43 shuttle Discovery 43 Gregory Chamitoff 43 Kaleri 43 commander Peggy Whitson 42 Soyuz TMA 42 Shuttle commander 42 Soyuz 42 astronauts 42 Fincke 42 International Space Station 42 spacewalk 42 NASA Astronaut 42 Astronauts 41 astronaut 41 Baikonur Cosmodrome 41 spacewalker 41 Lopez Alegria 41 spacewalks 41 NASA 41 shuttle Endeavour 41 Flight Engineer 41 Doug Wheelock 41 Russian Soyuz spacecraft 41 Russian cosmonauts 41 Lee Archambault 41 Krikalev 41 NASA astronaut 41 spacecraft 40 Donald Pettit 40 Stefanyshyn Piper 40 spacewalkers 40 JAXA 40 Soyuz craft 40 shuttle astronauts 40 orbiting spacecraft 40 orbiting complex 40 Baikonur cosmodrome 40 Andrew Feustel 40 Soyuz capsule 40 Sunita Williams 40 Russian cosmonaut 40 Tokarev 40 space shuttle Endeavour 40 astronaut Sunita Williams 40 Shuttle Discovery 40 Roskosmos 39 Launch Date 39 ISS 39 Shuttle Endeavour 39 human spaceflight 39 shuttle missions 39 CAPE CANAVERAL Fla. 39 Parazynski 39 Russian Soyuz 39 Sharipov 39 Spacecraft 39 CAPE CANAVERAL 39 orbiting 39 Huygens 39 Tyurin