Related by context. Frequent words. (Click for all words.) 67 metal shavings 53 shuttle thermal tiles 50 leaky valve 49 aboard Endeavour 49 Spacewalking astronauts 47 Endeavour astronauts 47 debris 47 thermal tile 47 ammonia tank 47 shuttle payload bay 47 spacewalking partner 46 Spacewalkers 46 spacewalking astronaut 46 spacewalk 46 orbiting complex 46 Mike Suffredini 46 rotary joint 45 Oleg Kononenko 45 Dan Tani 44 payload bay 44 Spirit rover 44 shuttle underside 44 Discovery astronauts 44 orbital module 44 Alexander Kaleri 43 heat shield 43 Martian soil 43 insulation foam 43 Heidemarie Stefanyshyn Piper 43 spacewalking astronauts 43 micrometeorites 43 ammonia coolant 43 damaged cartilage 43 orbiting lab 43 spacewalker 43 Rick Mastracchio 43 Curbeam 43 resistant tiles 43 rover Opportunity 43 spokesman Allard Beutel 42 spacewalking 42 orbiting outpost 42 Opportunity rover 42 6 #/#-hour spacewalk 42 spacewalks 42 Tracy Caldwell Dyson 42 Tim Kopra 42 Ares IX rocket 42 thermal shielding 42 Kaleri 42 metal shards 42 spacesuits 42 Oleg Skripochka 42 Atlantis astronauts 42 gunk 42 Phoenix Mars lander 42 Shane Kimbrough 42 flame trench 41 Shuttle Discovery 41 Robert Behnken 41 Discovery payload bay 41 bone spurs 41 shuttle Discovery 41 Wakata 41 shuttle Endeavour 41 Lonchakov 41 rock abrasion 41 Walheim 41 flyaway foam 41 Yurchikhin 41 Mike Suffredini NASA 41 shuttle Atlantis 41 thermal tiles 41 Padalka 41 lunar dust 41 Soyuz rocket 41 orbiting shuttle 41 herniated 40 bd.className + = 40 space shuttle Discovery 40 Phoenix lander 40 orbiter 40 exhaust vent 40 Discovery liftoff 40 Baikonur Kazakhstan 40 cartilage 40 thermal blanket 40 field Infrared Survey 40 micrometeorite damage 40 gaseous hydrogen 40 tank foam insulation 40 shuttle astronauts 40 torn cartilage 40 Bill Gerstenmaier NASA 40 orbital debris 40 Stardust spacecraft 40 vertical stabilizer 40 Harmony module 40 knee scoped 40 hairline cracks 40 gasket