Related by context. Frequent words. (Click for all words.) 51 Fossum 50 Feustel 49 Melroy 48 Fincke 46 NASA astronaut 46 Polansky 45 Wheelock 45 spacewalking astronauts 45 spacewalker 44 Mike Fincke 44 shuttle Atlantis 44 Chamitoff 44 spacewalk 43 Discovery astronauts 43 Astronauts 43 Poulos 43 Endeavour astronauts 42 Space Station 42 spacewalkers 42 astronaut 42 astronauts 42 Reisman 42 Parazynski 42 International Space Station 42 Chiao 42 shuttle Discovery 41 Lopez Alegria 41 Whitson 41 Padalka 41 Wakata 41 Dextre 41 Thirsk 40 orbiting lab 40 Lucey 40 Astronaut 40 JAXA 40 Space Agency 39 Pontes 39 shuttle Endeavour 39 spacewalks 39 Atlantis astronauts 39 Space Shuttle Discovery 39 Spaulding 39 spacesuits 39 Gerstenmaier 39 Crisafulli 39 Tani 39 Massimino 38 Creamer 38 NASA 38 Monahan 38 O'Keefe 38 Mission Control 38 spacewalking 38 orbiting outpost 38 Antonelli 38 Fournier 38 Space Shuttle Atlantis 38 Leinbach 38 shuttle astronauts 38 Michaud 37 space shuttle Discovery 37 McCool 37 Space shuttle Discovery 37 Fitts 37 crewmates 37 Nagle 37 Alan Shepard 37 Olivas 37 Schilling 37 spaceflight 37 undocking 37 Noguchi 37 robotic arm 36 orbiting laboratory 36 Nickerson 36 Schlegel 36 Eileen Collins 36 Puleo 36 orbit 36 Flight Engineer 36 McAuliffe 36 space shuttle Endeavour 36 spacesuit 36 FitzPatrick 35 payload bay 35 Satcher 35 Lavallee 35 blastoff 35 Foreman 35 Weiler 35 D' Amico 35 DeSalvo 35 Keefe 35 Quirk 35 Reiter 35 McGonagle 35 DeCarlo 35 Space shuttle Endeavour 35 Hubble 35 McElligott