Related by context. Frequent words. (Click for all words.) 54 Tyurin 52 Two spacewalking astronauts 51 Astronauts aboard 51 Astronauts 51 Vinogradov 50 Russian cosmonaut 50 Spacewalking astronauts 49 Spacewalkers 49 Shuttle astronauts 49 Alexander Kaleri 49 Richard Linnehan 49 spacewalk 48 Oleg Kononenko 48 International Space Station 47 Fyodor Yurchikhin 46 interplanetary spacecraft 46 spacewalkers 46 Shane Kimbrough 46 Baikonur Kazakhstan 46 Kononenko 45 Fuglesang 45 spacewalks 45 Oleg Skripochka 45 Soyuz capsule carrying 45 spacewalking astronauts 45 spacecraft 44 Lopez Alegria 44 orbiting astronauts 44 Ares IX rocket 44 spacemen 44 Lonchakov 44 Spacewalk 44 Atlantis astronauts 43 orbiting 43 Cosmonaut 43 astronauts 43 spacesuits 43 Andrew Feustel 43 orbiting complex 43 Robert Behnken 43 Yurchikhin 43 Shuttle Discovery 43 Heidemarie Stefanyshyn Piper 43 Douglas Wheelock 43 Julie Payette 43 Tracy Caldwell Dyson 43 Malenchenko 43 astronaut Peggy Whitson 43 commander Peggy Whitson 43 Shuttle Atlantis 43 Gagarin flight 42 Soyuz rocket 42 Astronaut 42 Tim Kopra 42 commander George Zamka 42 orbit 42 Padalka 42 orbit insertion 42 Eyharts 42 Sturckow 42 shuttle Atlantis 42 shuttle Endeavour 42 space shuttle Discovery 42 Space Shuttle Discovery 42 Mikhail Kornienko 41 6 #/#-hour spacewalk 41 Russian cosmonauts 41 Rick Mastracchio 41 Endeavour astronauts 41 Space Station 41 astronauts aboard 41 Commander Peggy Whitson 41 cosmonaut 41 Cosmonauts 41 Discovery astronauts 41 Caldwell Dyson 41 Fincke 41 Donald Pettit 41 Zamka 41 spacesuit 41 Space Agency 41 Frank De Winne 41 Shuttle Endeavour 40 Feustel 40 orbiting outpost 40 spacecrafts 40 shuttle 40 astronaut Paolo Nespoli 40 Flight controllers 40 New Horizons spacecraft 40 Tokarev 40 lunar module 40 spacewalking 40 Soyuz capsule 40 Doug Wheelock 40 astronaut Julie Payette 40 cosmonauts 40 aboard Endeavour 40 Mission Specialists 40 Stephen Frick 40 blastoff