Related by context. Frequent words. (Click for all words.) 42 Fossum 41 spacewalk 39 Tracy Caldwell Dyson 39 spacewalkers 38 Fincke 38 Discovery astronauts 36 spacewalks 36 payload bay 35 Mike Fincke 35 spacewalking astronauts 35 ammonia tank 35 space shuttle Endeavour 34 Space shuttle Atlantis 34 Endeavour astronauts 34 Shuttle Atlantis 34 orbiting lab 34 John Grunsfeld 34 International Space Station 33 Yurchikhin 33 aboard Endeavour 33 Lopez Alegria 32 orbiting outpost 32 Garan 32 Atlantis astronauts 32 spacewalking 32 spacesuits 32 Mastracchio 32 Russian cosmonaut 32 orbital outpost 31 space shuttle Discovery 31 shuttle Atlantis 31 Wakata 31 orbiting laboratory 31 Feustel 31 Space shuttle Discovery 31 Shuttle Endeavour 31 shuttle Endeavour 31 starter Javier Vazquez 31 shuttle Discovery 31 Astronauts 31 thermal blanket 30 Soyuz TMA 30 shuttle astronauts 30 shuttle robotic arm 30 Chamitoff 30 Malenchenko 30 Padalka 30 spacesuit 30 Space shuttle Endeavour 29 Hector Carrasco 29 airlock 29 Space Shuttle Atlantis 29 Astronaut 29 Spacewalk 29 Space Shuttle Endeavour 29 Sunita Williams 28 gap fillers 28 Shuttle Discovery 28 Nespoli 28 heat shield 28 rotary joint 28 spacewalker 28 Melroy 28 Casey Fossum 28 Parazynski 28 STS 28 undock 28 starter Kevin Millwood 28 Space Shuttle Discovery 27 solar arrays 27 astronauts 27 Randy Choate 27 thermal tile 27 Sean Henn 27 Foale 27 CAPE CANAVERAL Fla. 27 Aquilino Lopez 27 astronaut 27 Lance Cormier 27 CAPE CANAVERAL 27 starter Gil Meche 27 space shuttle Atlantis 27 Curbeam 26 Baikonur Cosmodrome 26 Vinogradov 26 Behnken 26 Hank Blalock 26 Suffredini 26 undocking 26 thermal tiles 26 Brian Duensing 26 Grunsfeld 26 NASA astronaut 26 robotic arm 26 Olivas 26 spaceman 25 Chiao 25 Cape Canaveral Fla. 25 shuttle missions 25 Mission Control 25 cosmonaut