Related by context. Frequent words. (Click for all words.) 54 Lopez Alegria 54 Wakata 53 Mike Fincke 52 Fincke 52 International Space Station 52 astronaut 51 orbital outpost 50 NASA astronaut 50 Thomas Reiter 50 shuttle Discovery 49 spacewalks 49 space shuttle Discovery 49 spacewalking 49 Padalka 49 Flight Engineer 49 Soyuz spacecraft 48 orbiting laboratory 48 orbiting outpost 48 astronauts 47 shuttle Atlantis 47 shuttle Endeavour 47 Russian Soyuz spacecraft 47 Space shuttle Discovery 46 spacewalker 46 Endeavour 46 Shuttle Discovery 46 Malenchenko 46 spacewalking astronauts 46 spacewalk 46 shuttle astronauts 45 space shuttle Atlantis 45 Space Shuttle Discovery 45 Space Shuttle Atlantis 45 space shuttle Endeavour 45 Soyuz capsule 45 Chamitoff 45 Russian cosmonauts 44 Endeavour astronauts 44 Space shuttle Endeavour 44 Atlantis astronauts 44 Space shuttle Atlantis 44 Space Shuttle Endeavour 44 aboard Endeavour 44 orbiting lab 43 Discovery astronauts 43 orbit 43 cosmonaut 42 Astronaut 42 Soyuz 42 Shuttle Endeavour 42 Mastracchio 41 Soyuz TMA 41 spaceflight 41 Chandrayaan 41 Eileen Collins 41 Melroy 41 spacewalkers 41 Feustel 40 Atlantis 40 Russian cosmonaut 40 undock 40 spacesuits 40 ammonia tank 40 Space Station 39 cosmonauts 39 Russian Soyuz 39 astronauts aboard 39 Sharipov 39 lunar orbit 39 space shuttle 39 ISS 39 Grunsfeld 39 PSLV 39 spacecraft 39 Astronauts 39 shuttle missions 38 Baikonur Cosmodrome 38 Nasa 38 crewmates 37 astronaut corps 37 Russian Soyuz capsule 37 Dextre 37 Fossum 37 Indra Nooyi 37 Sriharikota 37 NASA 37 Chiao 37 Christa McAuliffe 37 Baikonur cosmodrome 37 orbiting 36 Ansari 36 Mark Polansky 36 Rajiv Shah 36 Expedition 36 spacesuit 36 Sally Ride 36 orbiter 36 shuttle fleet 36 astronaut Buzz Aldrin 35 Rick Husband 35 spaceship