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(Click for frequent words.) 85 spacecraft 72 orbiters 71 heat shield 70 space shuttle 69 lander 68 Orbiter 68 NASA 68 space shuttle Discovery 67 shuttle 67 liftoff 67 shuttle Discovery 66 shuttle orbiter 66 orbit 66 astronauts 66 International Space Station 66 Ares IX rocket 66 Space Shuttle 65 flyby spacecraft 65 resistant tiles 65 Soyuz 65 Space Shuttle Discovery 65 orbiting spacecraft 64 Ares IX 64 Endeavour 64 External Tank 64 shielding tiles 63 Nasa 63 Space Shuttle Atlantis 63 Mars Reconnaissance Orbiter MRO 63 shuttle underside 63 SSMEs 63 Mars Reconnaissance Orbiter 63 space shuttles 62 shuttle Atlantis 62 Hubble Space Telescope 62 shuttle Endeavor 62 Space Shuttle Program 62 Space Shuttle Endeavour 62 deorbit 62 crewed spacecraft 62 Nasa spacecraft 62 Cassini 61 Stardust spacecraft 61 orbiting 61 Martian orbit 61 Rosetta spacecraft 61 space shuttle Atlantis 61 Solid Rocket Boosters 61 spacecrafts 61 Discovery STS 61 Shuttle Discovery 61 Hubble 61 space shuttle Endeavour 61 shuttle Endeavour 61 lunar orbiter 61 deorbiting 61 thermal tiles 60 Huygens 60 orbiting observatory 60 Huygens probe 60 lunar surface 60 Voyager spacecraft 60 micrometeoroids 60 heatshield 60 Mission Control 60 unmanned spacecraft 60 NASAs 60 deorbit burn 60 IBEX spacecraft 60 manned spacecraft 59 Soyuz rocket 59 LCROSS 59 lunar orbit 59 Saturn Cassini 59 Chandrayaan 59 Orbiter MRO 59 Spacecraft 59 GSLV rocket 59 New Horizons spacecraft 59 starboard SARJ 59 Chang'eI 59 Cryosat 59 bipod ramp 59 spaceship 59 orbital rendezvous 59 shuttle underbelly 59 rover 59 Curiosity rover 59 Hayabusa probe 59 Soyuz capsule 59 Messenger spacecraft 59 MESSENGER spacecraft 59 JAXA 59 preset orbit 59 Mars Odyssey spacecraft 59 shuttle Discovery STS 59 Galileo spacecraft 58 Cassini Huygens spacecraft 58 NASA Stardust spacecraft 58 Stardust capsule 58 Shuttle Endeavor 58 Orbiters 58 Cosmodrome 58 Discovery astronauts 58 undocking 58 Space Agency 58 BepiColombo 58 meteoroid 58 Mars Lander 58 Orion spacecraft 58 shuttle disintegrated 58 orbiting Mars 58 Atlantis STS 58 WISE spacecraft 58 tank foam insulation 58 DART spacecraft 58 rover Spirit 58 LRO LCROSS 58 shuttle astronauts 58 orbital insertion 58 NROL 58 flyaway foam 58 Shuttle astronauts 58 Martian rover 58 Hubble servicing 58 Mars lander 58 robotic rovers 57 NASA MESSENGER spacecraft 57 Atlas 2AS 57 probe Huygens 57 Shuttle Endeavour 57 Mars orbiter 57 spacecraft orbiting 57 Phobos Grunt 57 Atlantis 57 Endeavour STS 57 impactor 57 Orbiter LRO 57 Pilot George Zamka 57 asteroid Itokawa 57 Lunar Reconnaissance Orbiter LRO 57 spaceplane 57 Cassini Huygens 57 orbital debris 57 spokesman Michael Braukus 57 orbiting telescope 57 Pirs Docking Compartment 57 shuttle missions 57 Shenzhou VII spacecraft 57 NanoSail D 57 Soyuz spacecraft 57 Martian surface 57 Discovery liftoff 57 payload fairing 57 Jules Verne ATV 57 commander Pam Melroy 57 LCROSS spacecraft 57 Shenzhou spacecraft 57 aboard Atlantis 57 Shuttle Atlantis 57 GSLV F# 57 PSLV rocket 57 booster rockets 57 Taurus XL rocket 57 Taurus XL 57 Yinghuo 1 57 Kennedy Space 57 Astronauts inspect 57 Global Surveyor 57 robotic explorer 57 rovers 57 Commander George Zamka 57 Pad #A 57 Endeavour astronauts 57 Jupiter Icy Moons 57 GOCE 57 gaseous hydrogen leak 57 Atlantis undocks 57 Fregat upper stage 57 Endeavour docked 57 tile fillers 57 Zvezda module 56 Huygens lander 56 shuttle Endeavour STS 56 Discovery undocks 56 maneuvering thrusters 56 atmospheric reentry 56 spaceflyers 56 Red Planet 56 undocks 56 Launch Pad #B 56 foam fragment 56 Pirs docking compartment 56 shuttle thermal tiles 56 robotic spacecraft 56 Mars landers 56 MESSENGER 56 orbital 56 Sojourner rover 56 rover Opportunity 56 Mars rover 56 micrometeoroid 56 lunar landers 56 lunar orbiter Chandrayaan 56 Foton M3 56 shuttle thermal shielding 56 YES2 56 unmanned probes 56 Chang'e 56 GSLV D3 56 pad #A 56 Reinforced Carbon Carbon 56 orbiter robotic arm 56 ISS 56 thermal tile 56 Readdy 56 ESA Huygens probe 56 Mars Polar Lander 56 Nasa Mars Odyssey 56 Pad #B 56 MPLM 56 aeroshell 56 Dittemore 56 superhot gases 56 polar orbit 56 Space Station 56 Hubble Space telescope 56 GSLV D3 rocket 56 GOES O 55 NASA Stratospheric Observatory 55 lunar probe 55 pressurized module 55 PSLV C# rocket 55 shuttle payload bay 55 Philae lander 55 Apollo missions 55 Churyumov Gerasimenko 55 Phoenix Mars Lander 55 martian atmosphere 55 Lunar Module 55 robotic Canadarm 55 protruding strips 55 LRO 55 Mars orbiting spacecraft 55 spacewalk 55 interplanetary spacecraft 55 Harmony Node 55 insulating tiles 55 Mars Orbiter 55 Phoenix lander 55 thruster 55 lunar landing 55 ship thermal shielding 55 shuttle orbiters 55 Gerstenmaier 55 NASA rovers 55 nosecap 55 Huygens mission 55 solid rocket boosters 55 Endeavour belly 55 KSLV 1 55 tile filler 55 orbiting complex 55 Mars Pathfinder 55 satellites 55 Launch Abort System 55 Mars Pathfinder lander 55 planetary Transits 55 spacecraft Chandrayaan 1 55 thruster firings 55 perilune 55 Ranging spacecraft 55 Orbiting Carbon Observatory 55 orbiting outpost 55 STSS Demo 55 cryogenic propellants 55 NuSTAR 55 Lyndin 55 Ariane rocket 55 martian surface 55 Thermal Protection 55 comet 55 shepherding spacecraft 55 MetOp satellite 55 orbital maneuvering 54 Kibo JPM JEM Pressurized 54 Minotaur rocket 54 lunar missions 54 winged spacecraft 54 Mars rovers Spirit 54 orbiting Hubble Space Telescope 54 Space shuttle Discovery 54 Bob Ess 54 TPS Thermal 54 asteroid 54 Earth orbit 54 Kibo module 54 THEMIS spacecraft 54 Japan Kibo laboratory 54 INSAT 4CR 54 Dnepr rocket 54 lunar lander 54 lunar module 54 STS 54 Sensing Satellite LCROSS 54 Horizons spacecraft 54 LeRoy Cain chairman 54 Atlantis payload bay 54 MetOp 54 Orbiter Processing Facility OPF 54 Nasa Mars Reconnaissance 54 shuttle fleet 54 irregularly shaped asteroid 54 OBSS 54 rocket thrusters 54 PSLV C# 54 Baikonur Kazakhstan 54 Cape Canaveral Fla. 54 JWST 54 interplanetary missions 54 shuttle Challenger 54 SARJ 54 unmanned lunar 54 manned spaceship 54 O OREOS 54 Shenzhou VII 54 Resourcesat 2 54 protective thermal tiles 54 Space Shuttle Endeavor 54 Soyuz Fregat rocket 54 Centaur rocket 54 cryogenic engine 54 docking compartment 54 PSLV C6 54 Permanent Multipurpose Module 54 Atlantis robotic arm 54 Kepler spacecraft 54 Nasa Jet Propulsion 54 spacewalkers Scott Parazynski 54 astronaut 54 unstowed 54 urine recycler 54 Progress resupply 54 PSLV C 54 asteroid Eros 54 protruding thermal 54 ion propulsion 54 foam shedding 54 insulating foam 54 probe Chang'e 54 SIRTF 54 Glonass K 54 Cape Canaveral 54 GOCE satellite 54 fiery reentry 54 Hubble telescope 54 Itokawa 54 director Chuck Dovale 54 commander Leroy Chiao 54 laser altimeter 54 highly elliptical orbit 54 ESOC 54 Zvezda Service 54 Tranquility module 54 thrusters 54 SuitSat 54 Ares IY 54 Kliper 54 Hubble Space Telescope HST 54 Mars moon Phobos 54 THEMIS satellites 54 Pirs airlock 54 Mercury flyby 54 Foton M2 53 ESA Mars 53 specialists Scott Parazynski 53 Bill Gerstenmaier NASA 53 propellant loading 53 THEMIS Images 53 Shenzhou V 53 astronauts Scott Parazynski 53 Hayabusa spacecraft 53 Comet Churyumov Gerasimenko 53 Deep Impact probe 53 Orion capsule 53 manned Shenzhou 53 Solar Dynamics Observatory 53 Mars Global Surveyor 53 CALIPSO 53 human spaceflight 53 comet flyby 53 lunar orbiter Chang'e 53 Ulysses spacecraft 53 Titan flyby 53 booster rocket 53 Hayabusa 53 GSAT 5P 53 Deep Impact comet 53 spacewalkers 53 payload canister 53 HTV2 53 retrorockets 53 Lunar Orbiter 53 hypersonic speeds 53 Martian atmosphere 53 Shenzhou VI 53 Atlantis astronauts 53 APXS 53 comet nucleus 53 commander Sergei Volkov 53 MARSIS radar 53 #/#-ton truss 53 astronauts aboard 53 RSRMs 53 manned spacecraft Shenzhou VI 53 Ares I. 53 ROCSAT 2 53 orbit insertion 53 lunar 53 Opportunity rovers 53 Baikonur Cosmodrome Kazakhstan 53 Lunar Prospector 53 Baikonur Cosmodrome 53 Russian cosmonaut Alexander Kaleri 53 lunar probe Chang'e 53 Mars CRISM 53 stationary lander 53 orbital velocity 53 Spirit rover 53 Mars Odyssey orbiter 53 orbiting laboratory 53 Observatory SDO 53 HiRISE camera 53 SMOS 53 SpaceLoft XL rocket 53 rovers Spirit 53 Orbital Express 53 THEMIS 53 polar orbiting 53 Solid Rocket Booster 53 Comet #P/Churyumov-Gerasimenko 53 comet chaser 53 CryoSat satellite 53 micrometeorites 53 Oleg Skripochka 53 Ares rocket 53 spacecraft Cassini 53 Mars Color Imager 53 LADEE 53 Huygens Probe 53 flyby 53 commander George Zamka 53 GUCP 53 ISS robotic arm 53 Dragon capsule 53 Reconnaissance Orbiter 53 Rassvet module 53 Mars Odyssey 53 postflight 53 spaceward 53 countdown dress rehearsal 53 INSAT 4C 53 Saturnian moon Titan 53 Hubble gyroscopes 53 payload bay 53 Commander Eileen 53 Pirs module 53 LRO spacecraft 53 GOES N 53 drogue parachute 53 SpaceX Dragon capsule 53 Proba 2 53 reusable spacecraft 52 SOHO spacecraft 52 MARSIS 52 George Zamka 52 liftoff dooming 52 Cassini spacecraft 52 Kibo robotic arm 52 ExoMars rover 52 DubaiSat 1 52 EPOXI mission 52 aft skirt 52 lunar orbits 52 asteroid Steins 52 spacesuit 52 Orbital Maneuvering System 52 Soyuz landings 52 Soyuz TMA 52 orbital maneuvers 52 Kaleri 52 Mirelson 52 lunar explorer 52 rover Curiosity 52 Context Camera 52 Lunar Reconnaissance Orbiter 52 lunar module Eagle 52 dexterous robot 52 Endeavour thermal shielding 52 Shuttle 52 exhaust plume 52 SSETI Express 52 Discovery payload bay 52 astronaut Scott Parazynski 52 Glonass satellites 52 Servicing Mission 52 ESA Rosetta 52 Glonass M 52 Pilot Terry Virts 52 Mars rover Opportunity 52 STEREO spacecraft 52 fragile thermal tiles 52 Space Launch Vehicle 52 superheated gases penetrated 52 STIS 52 spokesperson Allard Beutel 52 astronauts Douglas Wheelock 52 Venusian surface 52 NIRSpec 52 Hubble Telescope 52 NASA Space Shuttle 52 geosynchronous orbit 52 Launch Pad #A 52 GLAST spacecraft 52 ISRO 52 shuttle airlock 52 Chandrayan 52 Giove B 52 Cape Canaveral Air Force 52 micrometeorite 52 aboard Endeavour 52 comet Churyumov Gerasimenko 52 ECO sensors 52 Huygens spacecraft 52 twin rover Opportunity 52 Phoenix Mars lander 52 heaviest payloads 52 Mars 52 gap fillers 52 PSLV 52 geosynchronous satellite launch 52 Martian arctic 52 Comet 9P/Tempel 1 52 Skripochka 52 Viking orbiters 52 OMS pod 52 GSLV 52 windshield wiper maneuver 52 Foton spacecraft 52 Martian lander 52 flame trench 52 NASA MESSENGER 52 Altair lunar lander 52 orbiting Hubble telescope 52 payload 52 coastal Naro 52 Admiral Gehman 52 ATV Jules Verne 52 Globalstar satellites 52 Chandrayaan II 52 GPS IIR M 52 Shenzhou V spacecraft 52 Martian soil 52 Yury Lonchakov 52 PSLV C9 52 Glonass navigation satellites 52 NASA rovers Spirit 52 NASA Jet Propulsion Laboratory 52 Zenit 3SL rocket 52 LCROSS mission 52 Mike Suffredini 52 NASA Voyager spacecraft 52 Crew Launch Vehicle 52 Rosetta orbiter 52 radar altimeter 52 AEHF satellite 52 Earth orbiting satellites 52 spacecraft orbited 52 Space shuttle Endeavour 51 Polar Lander 51 Shenzhou VI spacecraft 51 Yurchikhin 51 Permanent Multipurpose Module PMM 51 Orbital Debris 51 Crawler Transporter 51 Cape Canaveral FL AHN 51 CARTOSAT 51 NASA Spirit rover 51 Comet Hartley 2 51 geo stationary orbit 51 Kazakhstan Baikonur Cosmodrome 51 Herschel telescope 51 Skylab 51 ion thrusters 51 Atlantis rocketed 51 hydrazine fuel 51 foam insulation peeled 51 Deep Impact flyby spacecraft 51 tank insulating foam 51 Kosmos 3M rocket 51 orbital laboratory 51 Opportunity rover 51 Baikonour Cosmodrome 51 impactor spacecraft 51 Engelauf 51 NASA Cassini spacecraft 51 spacesuits 51 geosynchronous satellites 51 crawler transporter 51 Sriharikota 51 damaged thermal tiles 51 Soyuz FG 51 meteoroids 51 GIOVE B 51 Mars rovers 51 Relations Observatory STEREO 51 Minotaur IV rocket 51 indigenous cryogenic engine 51 orbital module 51 retroreflector 51 pre docking backflip 51 extravehicular activities 51 JIMO 51 Soyuz craft 51 shuttle undocks 51 Lunar Module Pilot 51 Huygens descent 51 Impact Probe MIP 51 Atlas IIAS 51 satellites orbiting Earth 51 aerobraking 51 GeneSat 1 51 deorbited 51 S6 truss 51 Viking landers 51 electric ion propulsion 51 onboard Chandrayaan 51 Undocking 51 Commander Pam Melroy 51 Manned missions 51 telescope 51 Alexander Kaleri 51 planetary missions 51 orbiting ISS 51 Shenzhou IV 51 Cosmonaut Yuri Gagarin 51 Shenzhou VI capsule 51 Shuttle Atlantis blasts 51 manned lunar landing 51 KAGUYA 51 blastoff 51 Infrared Astronomy SOFIA 51 Wallops Island Va. 51 Orion CEV 51 intertank 51 Proton Breeze M 51 NASA Administrator 51 orbiting observatories 51 shuttle robotic arm 51 chief Vladimir Solovyov 51 VIRTIS 51 Salizhan Sharipov 51 space shuttle orbiters 51 hypergolic 51 SpaceX Falcon 9 51 COROT 51 Soyuz spacecraft docked 51 Space Shuttle STS 51 Hubble Servicing 51 HiRISE 51 Martian rovers 51 Ron Dittemore 51 Mars Orbiter Camera 51 WISE telescope 51 interstellar particles 51 CloudSat 51 Atlas V 51 MTSAT 1R 51 starboard truss 51 Automated Transfer Vehicle 51 director Tony Ceccacci 51 Nicole Stott 51 Comet Hartley 51 Resourcesat 51 Ron Garan 51 Oceansat 2 51 Infrared Astronomy 51 orbiter Atlantis 51 spokesman Paul Foerman 51 Ariane 5 51 FASTSAT 51 NASA Kepler telescope 51 fairing separation 51 reconnaissance orbiter 51 lunar orbiters 51 Cartosat 2B 51 Krikalev 51 Pegasus XL 51 DMSP F# 51 infrared telescope 51 GOES satellites 51 station Quest airlock 51 NASA Mars rover 51 toxic hydrazine fuel 51 Russian Soyuz 51 X ray telescope 51 Astronauts 51 weather satellite TIROS 51 Helios 2B 51 Space Telescope Imaging Spectrograph 51 NASA EPOXI mission 51 copper impactor 51 LORRI 51 AEHF satellites 51 Orbiter Processing Facility 51 fiery gases 50 lander rover 50 unmanned lunar orbiter 50 Caldwell Dyson 50 William Readdy NASA 50 Spirit Mars rover 50 robotic lander 50 Express orbiter 50 Shenzhou capsule 50 Ares Orion 50 spacewalker Scott Parazynski 50 astronaut Peggy Whitson 50 gamma ray observatory 50 Planck satellite 50 Satish Dhawan Space 50 Mars rovers Opportunity 50 Jiuquan Satellite Launch 50 orbital maneuvering system 50 Mini TES 50 HRSC 50 MARSIS instrument 50 Mars Opportunity rover 50 cosmodrome 50 NPOESS 50 TanDEM X 50 reboost 50 geosynchronous satellite 50 equatorial orbit 50 P#/P# truss 50 Canadian Julie Payette 50 scramjet 50 ballistic trajectory 50 Kurs automated 50 Rockot launcher 50 Japanese Kibo lab 50 Planck telescope 50 cosmonaut Alexander Kaleri 50 Alexander Samokutyayev 50 Fyodor Yurchikhin 50 Solar TErrestrial RElations Observatory 50 NFIRE 50 propellant tanks 50 Tanegashima Space Center 50 Russian Salizhan Sharipov 50 manned spaceships 50 spacewalking repairs 50 Centaur upper 50 Soyuz TMA spacecraft 50 SBSS satellite 50 twin rovers 50 X ray observatory 50 slender crescent 50 shuttle aft compartment 50 ECO sensor 50 RXTE 50 meteorological satellites 50 ice frost ramps 50 Geostationary Operational Environmental 50 COSMO SkyMed 50 Jet Propulsion Laboratory JPL 50 lunar regolith 50 Webb Telescope 50 gumdrop shaped capsule 50 Itokawa asteroid 50 agency Roskosmos 50 Scott Parazynski 50 Galileo satellites 50 Titan 4B 50 NextSat 50 orbiter Cassini 50 Rick Husband 50 six wheeled rover 50 robotic arm 50 asteroid Vesta 50 Gusev crater 50 Launch Vehicle 50 Roman Romanenko 50 Ariane launcher 50 LROC 50 Jules Verne Automated Transfer 50 Commander Rick Sturckow 50 Rover MER 50 Launch Scrubbed 50 Imaging Spectroradiometer MODIS instrument 50 Fincke radioed 50 stage Naro rocket 50 Galaxy Evolution 50 ST5 50 payload bay doors 50 astronaut Heidemarie Stefanyshyn Piper 50 ATV Johannes Kepler 50 Eyharts 50 engineer Oleg Kononenko 50 unscheduled spacewalk 50 Mir Space Station 50 ISS crewmembers 50 unplanned spacewalk 50 Space Capsule 50 geostationary orbit 50 NASA Lunar Reconnaissance 50 Foton M3 spacecraft 50 VAB 50 Orbital Module 50 Dragon spacecraft 50 Japanese Kibo laboratory 50 Padalka 50 SBIRS HEO 50 astronauts Gus Grissom 50 INSAT 4B 50 permanently shadowed crater 50 Malenchenko 50 Gravity Probe B 50 ESA GOCE 50 Stardust mothership 50 orbited Earth 50 nanosatellite 50 Discovery thrusters 50 budging Wheelock told 50 jagged ridge 50 Comet Tempel 1 50 orbits 50 parafoil 50 hydrazine tank 50 Comet Lulin 50 Zenit 3SL 50 Budarin 50 Space shuttle Atlantis 50 twin rover Spirit 50 ISS Expedition 50 Deep Impact spacecraft 50 taikonaut 50 INSAT satellite 50 ARCTUS 50 rocket nose cone 50 Dextre robot 50 engineer Oleg Kotov 50 spokesman Rob Navias 50 Mars Surveyor 50 Orbiter Boom Sensor 50 robotic probes 50 Space Shuttle Columbia 50 remote sensing satellite Resourcesat 50 enters lunar orbit 50 Daniel Tani 50 toxic hydrazine 50 Jupiter Icy Moons Orbiter 50 Lunokhod 50 orbital outpost 50 Geosynchronous Satellite Launch Vehicle 50 Paulo Nespoli 50 CAPE CANAVERAL Shuttle Discovery 50 ion thruster 50 Insat 4C 50 Lunar Excursion Module 50 thermal blanket 50 downlinked 49 Bowersox Pettit 49 Flight Engineer Suni 49 Shuttle docks 49 unpiloted 49 NASA LCROSS 49 SpaceLoft XL 49 Flyby spacecraft 49 adventure Chamitoff radioed 49 director Rick LaBrode 49 SELENE probe 49 shuttle Atlantis STS 49 OBSS Orbiter Boom Sensor 49 J 2X 49 Spacewalkers Scott Parazynski 49 MUOS satellite 49 Multi Purpose Logistics Module 49 Russians Alexander Kaleri 49 suborbital trajectory 49 Naoko Yamazaki 49 Martian crater 49 indigenous cryogenic stage 49 NASA Orbiting Carbon 49 NOAA GOES 49 OSIRIS REx 49 Lee Archambault 49 EPOCh 49 Zarya module 49 Commander Charlie Hobaugh 49 Divine Vessel 49 BepiColombo mission 49 NASA STEREO 49 spokesman Igor Panarin 49 hydrazine 49 orbital altitude 49 Spacewalking 49 Russian Valery Tokarev 49 Columbia Accident Investigation 49 Vehicle CEV 49 NASA Mars Odyssey 49 Mars Climate Orbiter 49 Venus Climate Orbiter 49 Sacred Vessel 49 lander Beagle 2 49 Plesetsk Cosmodrome 49 Bill Readdy NASA 49 geo synchronous transfer 49 orbiting lab 49 Mars orbiters 49 spacecraft disintegrated 49 orbiter payload bay 49 Soyuz capsules 49 Rosetta comet chaser 49 MErcury Surface Space ENvironment 49 Perminov 49 Japanese Pressurized Module 49 geostationary orbits 49 1 #/#-pound chunk 49 Logistics Module 49 Terrestrial Planet Finder 49 GALEX 49 Shenzhou VI craft 49 Mike Sarafin 49 Commander Dmitry Kondratyev 49 geostationary 49 JPL 49 Canadarm2 49 sun synchronous orbit 49 Earth magnetosphere 49 Kounotori2 49 cosmonaut Fyodor Yurchikhin 49 ExoMars mission 49 astronaut Paolo Nespoli 49 asteroids Ceres 49 VSS Enterprise 49 Allard Beutel 49 innermost planet 49 Dmitry Kondratyev 49 astronaut Pam Melroy 49 Minotaur IV 49 manned orbital 49 ESA ASI 49 OMS pods 49 Mars Exploration 49 undock 49 Vehicle ATV 49 outer planets 49 shuttle thrusters 49 Russia Baikonur cosmodrome 49 SpaceshipTwo 49 Leroy Cain 49 martian soil 49 cometary 49 engineer Garrett Reisman 49 SMOS mission 49 engineer Timothy Kopra 49 Russian Soyuz rocket 49 gaseous planet 49 Mars Spirit rover 49 SpaceX Falcon 49 Discovery undocking 49 comet Hartley 2 49 astronaut Zhai Zhigang 49 Odyssey orbiter 49 Shuttle Discovery blasts 49 SRBs 49 Anik F3 49 spaceflight 49 Vitaly Davydov deputy 49 Exploration Vehicle 49 Earth asteroid Itokawa 49 geo synchronous 49 SMOS Soil Moisture 49 bipod fitting 49 Spacehab module 49 Xichang 49 ammonia coolant tank 49 geosynchronous 49 moon 49 Mikhail Tyurin 49 flyby Cassini 49 protruding filler 49 Saturn rings 49 LISA Pathfinder 49 NASA Lunar Crater 49 LeRoy Cain 49 Oefelein piloted 49 Infrared Pathfinder Satellite 49 JCSAT 9