Related by context. Frequent words. (Click for all words.) 61 thrusters 58 thruster 56 spacecraft 56 Automated Transfer Vehicle 54 undock 54 Lyndin 54 Space Shuttle Atlantis 52 GOCE 52 undocking 51 Soyuz rocket 51 orbit 50 orbiter 50 space shuttle Discovery 50 TacSat 50 Kaleri 50 Soyuz 50 Space Shuttle Discovery 50 Orbiter 50 undocked 50 Ares IX 50 Shuttle Discovery 50 Shuttle Endeavour 49 Shuttle Atlantis 49 ISS 49 spokesman Valery Lyndin 49 lunar orbit 49 Baikonur Cosmodrome 49 Space Shuttle Endeavour 49 spacewalk 49 Launch Pad #A 49 Shenzhou VI 49 Taurus XL rocket 49 Soyuz capsule 49 Shuttle astronauts 48 Orion spacecraft 48 Space Shuttle Program 48 EVA 48 gaseous hydrogen 48 orbital 48 circular orbit 48 propellant 48 International Space Station 48 blastoff 48 Padalka 48 liftoff 48 unpowered 48 lander 48 Yurchikhin 48 flyby 47 Space Station 47 Space shuttle Discovery 47 Shuttle 47 Hubble servicing 47 Discovery astronauts 47 Space shuttle Atlantis 47 Spacewalk 47 Soyuz TMA 47 orbital module 47 Shuttle Launch 47 Liftoff 47 shuttle Atlantis 47 Spacecraft 47 Atlas V 47 Shenzhou VII 46 cryogenic engine 46 Dragon capsule 46 Leroy Chiao 46 Elektron 46 Krikalev 46 Ariane 5 46 External Tank 46 spacewalkers 46 Malenchenko 46 Spacewalkers 45 Edwards AFB 45 shuttle payload bay 45 spacecrafts 45 shuttle Discovery 45 STS 45 shuttle 45 Soyuz spacecraft 45 Space Shuttle 45 commander Peggy Whitson 45 docking 45 Discovery payload bay 45 space shuttle Atlantis 45 Endeavour astronauts 45 Dragon spacecraft 44 Launch Complex 44 space shuttle Endeavour 44 Orion capsule 44 Baikonur space 44 Lee Archambault 44 orbiting 44 Atlantis 44 Commander Eileen 44 JAXA 44 orbiting observatory 44 prelaunch 44 NASA 44 Tracy Caldwell Dyson