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(Click for frequent words.) 74 orbit 71 Martian orbit 67 spacecraft 66 circular orbit 66 polar orbit 64 geosynchronous orbit 64 preset orbit 63 highly elliptical orbit 62 spacecraft Chandrayaan 1 62 Chang'eI 61 geostationary orbit 61 Churyumov Gerasimenko 61 ESA Huygens probe 60 probe Huygens 60 Earth orbit 60 NASA Stardust spacecraft 60 spacecraft Cassini 60 probe Chang'e 60 comet Churyumov Gerasimenko 60 elliptical orbit 59 equatorial orbit 59 sun synchronous orbit 59 orbiter 59 lunar surface 59 New Horizons spacecraft 58 Comet #P/Churyumov-Gerasimenko 58 asteroid Itokawa 58 Huygens 58 Shenzhou V spacecraft 58 lander 58 geo stationary orbit 58 Lunar Reconnaissance Orbiter LRO 58 geo synchronous transfer 58 NASA MESSENGER spacecraft 58 lunar orbiter Chandrayaan 58 orbit GTO 58 shepherding spacecraft 57 Nasa spacecraft 57 suborbital trajectory 57 Earth asteroid Itokawa 57 Rosetta spacecraft 57 Huygens probe 57 orbit insertion 57 enters lunar orbit 57 crewed spacecraft 57 Orbiter MRO 57 deorbit 57 comet #P/Churyumov-Gerasimenko 57 Geosynchronous Transfer Orbit GTO 57 orbital insertion 57 Titan flyby 57 Horizons spacecraft 57 International Space Station 57 orbits 57 PSLV C 57 Orbiter LRO 57 Cassini Huygens spacecraft 57 Mars Reconnaissance Orbiter MRO 57 comet chaser 57 Yinghuo 1 56 aerobraking 56 entered lunar orbit 56 lunar orbiter 56 Phobos Grunt 56 hypersonic speeds 56 geosynchronous transfer orbit 56 Philae lander 56 Shenzhou VI craft 56 perilune 56 Stardust spacecraft 56 PSLV C# rocket 56 MESSENGER spacecraft 56 Stardust capsule 56 closest flyby 56 orbital rendezvous 56 geostationary transfer 56 lunar probe 56 PSLV C6 56 shuttle Endeavor 56 Messenger spacecraft 56 INSAT 4CR 56 BepiColombo 56 Jules Verne ATV 56 Shenzhou V 56 GOCE satellite 56 KAGUYA 56 Galileo spacecraft 56 orbiting observatory 55 geosynchronous transfer 55 Cassini Huygens 55 PSLV C9 55 #P/Churyumov-Gerasimenko 55 orbital module 55 lunar module Eagle 55 lander rover 55 lunar orbits 55 Chandrayaan 55 Curiosity rover 55 Hayabusa spacecraft 55 manned spacecraft Shenzhou VI 55 IBEX spacecraft 55 Itokawa asteroid 55 Itokawa 55 Convection Rotation 55 mission Chandrayaan 55 Resourcesat 2 55 Hayabusa probe 55 MESSENGER 55 Soyuz 54 Soyuz landings 54 GOCE 54 planetary Transits 54 orbital altitude 54 Discovery undocked 54 unmanned lunar 54 six wheeled rover 54 PSLV rocket 54 PSLV C# 54 lunar probe Chang'e 54 Comet Churyumov Gerasimenko 54 orbital 54 Mars Odyssey spacecraft 54 Huygens lander 54 flyby spacecraft 54 Shepherding Spacecraft 54 Atlantis undocks 54 MetOp 54 PSLV C7 54 robotic spacecraft 54 orbiting telescope 54 lunar spacecraft Chandrayaan 54 Soyuz spacecraft 54 Russian cosmonaut Alexander Kaleri 54 Cosmodrome 54 Geosynchronous Transfer Orbit 54 Endeavour STS 54 comet Hartley 2 54 Foton M2 54 Shenzhou VI spacecraft 54 Rosetta orbiter 54 Foton spacecraft 54 GSLV rocket 53 robotic rovers 53 Kounotori2 53 Impact Probe MIP 53 lunar orbiter Chang'e 53 Insat 4CR 53 Shenzhou VII spacecraft 53 Ranging spacecraft 53 Ulysses spacecraft 53 Soyuz capsule 53 aboard Soyuz TMA 53 Jupiter Icy Moons 53 ESA SMART 53 COROT 53 2F rocket 53 orbiting 53 Giove B 53 Baikonur Kazakhstan 53 Pirs Docking Compartment 53 hydrazine thrusters 53 ballistic trajectory 53 Eyharts 53 GSLV D3 53 Foton M3 53 spacecraft orbiting 53 perihelion 53 Ariane rocket 53 Voyager spacecraft 53 Shuttle Endeavor 53 onboard Chandrayaan 53 asteroid Vesta 53 HTV2 53 innermost planet 53 unmanned lunar orbiter 52 rover Spirit 52 Soyuz spacecraft docked 52 rocket thrusters 52 geo synchronous orbit 52 Huygens Probe 52 GOES O 52 geo synchronous 52 Lunar Orbit 52 ion propulsion 52 Shenzhou VII 52 spacecrafts 52 Mars Pathfinder lander 52 Soyuz rocket 52 lunar orbit insertion 52 Shenzhou VI capsule 52 retrorockets 52 ROCSAT 2 52 NextSat 52 Ares IX rocket 52 NFIRE satellite 52 Shenzhou spacecraft 52 aboard Atlantis 52 Cassini 52 undocks 52 Relations Observatory STEREO 52 Commander Dmitry Kondratyev 52 Helios 2B 52 SMOS 52 Discovery payload bay 52 spacecraft orbited 52 Russian Salizhan Sharipov 52 comet nucleus 52 Centaur rocket 52 Lt. Col. Yang Liwei 52 Lunar Module 52 Red Planet 52 circularize 52 Hubble Space Telescope 52 robotic explorer 52 Chang'e 52 lunar 52 thrusters 52 Martian atmosphere 52 Progress resupply 52 drogue parachute 52 Hubble Space telescope 51 Lunar Orbiter 51 GEochemistry 51 INSAT 4C 51 Insat 3A 51 Cryosat 51 bone jarring descent 51 Herschel Space Telescope 51 probe Akatsuki 51 mooncraft 51 interstellar particles 51 unstowed 51 asteroid Steins 51 Pirs docking compartment 51 star IM Pegasi 51 NASA Kepler telescope 51 Mars Pathfinder 51 station Pirs docking 51 Servicing Mission 51 Express orbiter 51 ATV Johannes Kepler 51 Chandrayaan II 51 lunar module 51 Oceansat 2 51 KA SAT satellite 51 orbital velocity 51 Glonass navigation satellites 51 Orbiter 51 Martian surface 51 INSAT 3A 51 Space Shuttle Atlantis 51 Comet Hartley 51 Kazakhstan Baikonur Cosmodrome 51 Alexander Samokutyayev 51 JAXA 51 deorbiting 51 orbiting spacecraft 51 MUSES C 51 LCROSS 51 INSAT 4B 51 Kaguya 51 ESA Rosetta 51 Andrey Borisenko 51 Kibo robotic arm 51 Globalstar satellites 51 Comet Hartley 2 51 Soyuz FG 51 Tanegashima Space Center 51 orbit GEO 51 CARTOSAT 51 Lunokhod 51 Mars moon Phobos 51 pericentre 51 indigenously developed cryogenic 51 Sun synchronous orbit 51 Geosynchronous orbit 51 Oleg Skripochka 51 stationary lander 51 pressurized module 51 Fregat upper stage 51 SpaceX Dragon capsule 51 orbiting observatories 51 unmanned spacecraft 51 mission Chandrayan 51 spaceward 51 Atlantis payload bay 51 station Quest airlock 51 manned lunar landing 51 electric ion propulsion 50 Atlantis STS 50 maneuvering thrusters 50 martian atmosphere 50 NASA twin rovers 50 Planck spacecraft 50 Solar Dynamics Observatory 50 Mössbauer 50 apogee farthest point 50 Ocean Salinity 50 Soyuz rocket carrying 50 Saturn Cassini 50 Solid Rocket Boosters 50 Endeavour docked 50 ESA Huygens 50 SBSS satellite 50 Vehicle PSLV rocket 50 orbiting outpost 50 Saturnian moon Titan 50 MErcury Surface Space ENvironment 50 Insat 4C 50 SpaceX Falcon 9 50 LRO LCROSS 50 GSAT 5P 50 orbiters 50 Proba 2 50 Oleg Kononenko 50 Shuttle Atlantis blasts 50 Plesetsk Cosmodrome 50 asteroids Ceres 50 taikonaut 50 manned lunar mission 50 APXS 50 Space shuttle Discovery 50 Minotaur rocket 50 manned spacecraft 50 Sriharikota spaceport 50 impactor 50 Chairman G Madhavan 50 Mars orbiter 50 docking adapter 50 deorbited 50 scramjet engine 50 ESA GOCE 50 Galileo satellites 50 commander Sergei Volkov 50 Comet Boethin 50 INSAT 3E 50 Shenzhou IV 50 KSLV 1 50 Zenit 3SL 50 Fregat 50 STSS Demo 50 Russia Baikonur cosmodrome 50 Space Capsule 50 Baikonour Cosmodrome 50 deorbit burn 50 swingby 50 Crewmate Tracy Caldwell 50 NASA Cassini spacecraft 50 Discovery STS 50 Kaguya spacecraft 50 WMAP satellite 50 Spacewalkers Scott Parazynski 50 aboard Skylab 50 Sojourner rover 50 shuttle Endeavour STS 50 Huygens descent 50 FASTSAT 50 lander Philae 50 magnetotail 50 INSAT 3D 50 circumlunar 50 Comet Lulin 50 GSLV F# 50 Ocean Salinity SMOS 50 PSLV C8 49 GIOVE B 49 interplanetary spacecraft 49 Cassini orbiter 49 lunar explorer 49 Automated Transfer Vehicle 49 Hubble orbits 49 SuitSat 49 Martian rover 49 Nasa Mars Odyssey 49 LCROSS spacecraft 49 Glonass K 49 winged spacecraft 49 cosmonaut Alexander Kaleri 49 orbital maneuvers 49 Nasa Mars Reconnaissance 49 LRO 49 Undocking 49 MARSIS 49 Chandrayan 49 perigee 49 Sojourner Rover 49 Zenit 3SL rocket 49 reboost 49 Rockot launcher 49 indigenous cryogenic engine 49 Glonass satellites 49 TanDEM X 49 manned spaceship 49 Arabsat 5A 49 Cassini spacecraft 49 Mars# 49 MPLM 49 SpaceLoft XL rocket 49 Huygens mission 49 orbiting Hubble Space Telescope 49 Sriharikota Andhra Pradesh 49 Orbiting Carbon Observatory 49 ISS robotic arm 49 EPOXI mission 49 Zvezda module 49 sols 49 manned lunar missions 49 taikonaut Yang Liwei 49 shuttle Atlantis 49 Vehicle ATV 49 Mars Reconnaissance Orbiter 49 THEMIS Images 49 Baikonur Cosmodrome 49 unmanned rover 49 Flyby 49 Shenzhou VI 49 NASA EPOXI mission 49 Vehicle PSLV 49 Discovery undocks 49 O OREOS 49 manned spacecraft Shenzhou 49 Rosetta comet chaser 49 indigenous cryogenic stage 49 STEREO spacecraft 49 NASA Lunar Reconnaissance 49 orbiting laboratory 49 Geo synchronous 49 rover Spirit landed 49 Skynet 5B 49 SSMEs 49 irregularly shaped asteroid 49 Recovery Experiment SRE 49 Anik F3 49 Cosmonaut Yuri Gagarin 49 JWST 49 satellite GSAT 49 aphelion 49 WISE spacecraft 49 comet Wirtanen 49 Soyuz TMA #M 49 Hubble 49 Soyuz craft 49 robotic arm 49 elongated orbit 49 slender crescent 49 Mars orbiting spacecraft 49 infrared telescope 49 GLONASS satellites 49 geosynchronous satellite 49 Shuttle Endeavour 49 SIRTF 49 geosynchronous satellite launch 49 orbital laboratory 49 orbiting complex 49 Global Surveyor 49 asteroid Eros 49 HAMSAT 49 comet Wild 49 SIM PlanetQuest 49 lunar landing 49 Beidou satellite 49 ringed planet 49 chairman G Madhavan 49 Space ENvironment GEochemistry 49 Lunar CRater Observation 49 MARSIS radar 49 NEAR Shoemaker 49 SpaceShipOne rocket 48 LRO spacecraft 48 robotic geologist 48 Dnepr rocket 48 orbited Earth 48 Launch Pad #B 48 Cartosat 2B 48 Near Infrared Camera 48 SpaceLoft XL 48 Skynet 5C 48 Hubble Space Telescope HST 48 #/#-hour parachute 48 agency Roskosmos 48 Atlas IIAS 48 retroreflector 48 Ranging MESSENGER spacecraft 48 Shuttle Endeavour undocks 48 thin crescent 48 Vinasat 48 crewed missions 48 aboard Endeavour 48 robotic rover 48 SpaceShip Two 48 asteroid flyby 48 Soyuz Fregat 48 Permanent Multipurpose Module 48 aeroshell 48 Shenzhou capsule 48 Plesetsk 48 xenon propellant 48 shuttle Discovery STS 48 MetOp satellite 48 ESA Mars 48 rover 48 NFIRE 48 martian surface 48 Soyuz TMA 48 Soyuz TMA spacecraft 48 unmanned Progress 48 Hubble Servicing 48 reentry capsule 48 remote sensing satellite Resourcesat 48 Space Shuttle Discovery 48 LORRI 48 Kepler spacecraft 48 ESOC 48 Sensing Satellite LCROSS 48 Saturn outermost moon 48 Sacred Vessel 48 SpaceX Dragon 48 Taurus XL rocket 48 robotic lander 48 shuttle payload bay 48 Stardust NExT 48 NASA Kepler 48 Space Station 48 Deep Impact probe 48 Orbital Express 48 NROL 48 gaseous planet 48 outer planets 48 SMOS Soil Moisture 48 Divine Vessel 48 Nikolai Budarin 48 Observatory SDO 48 particle physics detector 48 celestial observations 48 Martian rovers 48 Russian cosmonaut Yuri Gagarin 48 impactor spacecraft 48 ATV Jules Verne 48 spacecraft Chandrayaan 48 Pirs airlock 48 Viking Lander 48 CALIPSO 48 Mars rover Opportunity 48 NASA THEMIS 48 Mars rovers Opportunity 48 extravehicular activities 48 Kibo module 48 Atlas 2AS 48 Dragon capsule 48 robotic explorers 48 space shuttle Discovery 48 Shuttle undocks 48 ESA ASI 48 Fyodor Yurchikhin 48 ultraviolet imaging spectrograph 48 Japan Kibo laboratory 48 Huygens spacecraft 48 NASA Cassini 48 ASTRA 3B 48 Soviet cosmonaut Yuri Gagarin 48 elliptical polar 48 Soyuz launcher 48 Compton Gamma Ray 48 shuttle orbiter 48 INSAT 4A 48 EPOXI spacecraft 48 RSRMs 48 parafoil 48 circumlunar satellite 48 Hayabusa 48 manned Shenzhou 48 RazakSAT 48 unmanned probes 48 Orbiting Carbon Observatory OCO 48 orbiter Cassini 48 SOHO spacecraft 48 Astronaut Sunita Williams 48 Astronaut Sandra Magnus 48 Russian Soyuz Fregat 48 spacewalk Lopez Alegria 48 ELM PS 48 synchronous orbit 48 Atlantis Undocks From 48 ASTRA 1L 48 Cassini Equinox 48 Endeavour payload bay 48 Insat 4A 48 Russians Fyodor Yurchikhin 48 Kepler 9c 48 Orbiter Processing Facility OPF 48 Gravity Probe B 48 orbited Jupiter 48 shuttle thrusters 48 Mikhail Tyurin 48 Kepler Mission 48 comet flyby 48 shuttle disintegrated 48 RISAT 48 asteroid Lutetia 48 waning gibbous 47 propellant loading 47 airlock module 47 orbital resonance 47 perigee nearest point 47 GSLV D3 rocket 47 highly elliptical orbits 47 cosmic ray detector 47 JIMO 47 geosynchronous 47 Lyndin 47 GSLV D2 47 PSLV 47 Titan flybys 47 GSLV rockets 47 orbiting Saturn 47 Chiaki Mukai 47 manned spaceships 47 NASA MESSENGER 47 Deep Impact craft 47 Russian Soyuz spacecraft 47 Russian Valeri Polyakov 47 RISAT 2 47 Soyuz #S 47 NASA MErcury Surface 47 Yuri Lonchakov 47 GPS 2R 47 Terrain Mapping Camera 47 Vostok 3KA 47 Optical Spectroscopic 47 Russian Yuri Lonchakov 47 Progress #P 47 renamed GOES 47 GLAST spacecraft 47 Centaur upper 47 shuttle undocks 47 Roman Romanenko 47 Insat 4B 47 Hubble servicing 47 thruster 47 docking compartment 47 entire Milstar constellation 47 telescopic observations 47 Ariane launcher 47 nanosatellite 47 Apollo missions 47 Comet Tempel 1 47 Martian crater 47 geostationary orbits 47 ST5 47 Kazakhstan Baikonur cosmodrome 47 MELFI Minus Eighty 47 Soyuz docked 47 Solar TErrestrial RElations Observatory 47 flyby 47 X ray observatory 47 NASAs 47 prograde 47 reconnaissance orbiter 47 astronaut Leopold Eyharts 47 cryogenic engines 47 NASA rovers Spirit 47 Dmitry Kondratyev 47 Planetary Transits 47 thruster firings 47 Space Shuttle Endeavour 47 twin Voyager spacecraft 47 kg payload 47 robotic probes 47 Discovery astronauts 47 scramjet 47 heaviest payloads 47 shuttle Discovery blasted 47 moon 47 twin rover Spirit 47 Commander Fyodor Yurchikhin 47 Shuttle Discovery blasts 47 undock 47 ion thrusters 47 Earth orbit LEO 47 space module Tiangong 47 Baikonur Cosmodrome Kazakhstan 47 unpowered glider 47 lunar probes 47 Voyager probes 47 Russian Alexander Kaleri 47 Foton M3 spacecraft 47 Vehicle GSLV 47 Express AM# 47 SCISAT 47 SELENE lunar satellite 47 Pirs Docking Compartment airlock 47 DigitalGlobe WorldView 47 JCSAT 9 47 fried circuit breaker 47 orbited 47 HEO payload 47 capsule 47 NASA rover Opportunity 47 SELENE probe 47 spacecraft Shenzhou 47 shuttle airlock 47 Exploration Vehicle 47 spokesman Michael Braukus 47 Solar Orbiter 47 Kazakhstan Baikonur 47 lunar landers 47 lunar module pilot 47 astronaut Yang Liwei 47 AMIE camera 47 spacecraft Hayabusa 47 Shuttle Discovery 47 Comet 9P/Tempel 1 47 detect gravitational waves 47 DART spacecraft 47 gravitational slingshot 47 Crawler Transporter 47 Steins asteroid 47 remote sensing satellites 47 Commander Charlie Hobaugh 47 Mössbauer spectrometer 47 Launch Abort System 47 Martian arctic plains 47 interstellar dust samples 47 Space Shuttle STS 47 Cartosat 2A 47 ESO VLT 47 Jovian moons 47 Vehicle PSLV C# 47 Mars Color Imager 47 lunar lander 47 ISS 47 solar corona 47 Enceladus flyby 47 Atlantis undocked 47 6 #/#-hour jaunt 47 lunar orbiters 47 Canadarm2 robotic arm 47 unmanned Chandrayaan 47 Poisk 47 payload bay 47 Col. Yang Liwei 47 Japan Hayabusa spacecraft 47 orbital outpost 47 Orion capsule 47 Flight Engineer Suni 47 orbiting Mars 47 NASA Lunar CRater 47 Venusian surface 47 Cassini flyby 47 spaceplane 47 ExoMars rover 47 Glonass M 47 Spacecraft 47 thruster rockets 47 Ariane 5G 47 Russians Alexander Kaleri 46 propellant tanks 46 SCIAMACHY 46 Gerhard Schwehm 46 Kourou spaceport 46 Harmony compartment 46 astronauts 46 manned lunar landings 46 Space Shuttle Endeavor 46 orbiting Hubble telescope 46 broken gyroscope 46 orbiter lander 46 Hayabusa capsule 46 Human Spaceflight Microgravity 46 spacemen Timothy Kopra 46 Akihiko Hoshide 46 Kibo JPM JEM Pressurized 46 Russian cosmonauts 46 aboard Taurus XL 46 lunar spacecraft 46 Yury Lonchakov 46 Skripochka 46 Interstellar Boundary Explorer 46 Stardust mothership 46 engineer Garrett Reisman 46 Earth magnetosphere 46 Infrared Astronomy SOFIA 46 Omid satellite 46 atmospheric reentry 46 laboratory Kibo 46 wife commissioned Celestis 46 Briz M booster 46 GPS IIR M 46 Yuri Shargin 46 orbital maneuvering 46 Mercury flyby 46 aboard Soyuz spacecraft 46 YES2 46 Japanese Aerospace Exploration 46 Kaleri 46 Paulo Nespoli 46 THEMIS satellites 46 geosynchronous orbits 46 EPOXI 46 S#/S# truss segment 46 STIS 46 cosmonaut Yuri Gagarin 46 H IIB 46 SSETI Express 46 STP S# 46 Canadian Julie Payette 46 undocked 46 Optus D3 46 laser altimeter 46 LADEE 46 Russian crewmate Salizhan 46 AEHF satellite 46 Earth Orbit LEO 46 rover Opportunity 46 Discovery undocking 46 airglow 46 Sriharikota 46 Jupiter Ganymede 46 Valery Tokarev 46 frozen sunless 46 Endeavour undocks 46 Atlantis rocketed 46 Mars lander 46 Russian cosmonaut Gennady Padalka 46 ballistic descent 46 synchronous polar 46 EPOCh 46 Mars rovers Spirit 46 Odyssey orbiter 46 commander Zhai Zhigang 46 NASA rovers 46 Pegasus XL 46 Jupiter flyby 46 spaceflyers 46 ASTRA 1G 46 astronauts Douglas Wheelock 46 OSIRIS REx 46 Cabeus crater 46 shuttle undocked 46 ion thruster 46 Quest airlock 46 Yarkovsky effect 46 Tanegashima Space Centre 46 SpaceShip 46 comet dust 46 exoatmospheric kill vehicle 46 NASA STEREO 46 HiRISE camera aboard 46 Enceladus flybys 46 JCSAT 46 spacewalk 46 Space Agency 46 Cargo Launch Vehicle 46 Kazakhstan steppe 46 Phobos 46 Cloud Aerosol Lidar 46 twin rover Opportunity 46 LISA Pathfinder 46 P#/P# truss 46 Russian cosmonaut Yury Malenchenko 46 Impactor 46 shuttle Discovery undocked 46 cosmonaut Nikolai Budarin 46 Rokot booster rocket 46 lunar orbiting spacecraft 46 spokesman Rob Navias 46 Krikalev 46 Investigation DIXI 46 spacecraft disintegrated 46 countdown dress rehearsal 46 gravitational keyhole 46 lunar missions 46 Planck satellite 46 Kiruna Sweden 46 starboard SARJ 46 spacecraft SpaceShipTwo 46 planetary missions 46 Orion Ares 46 coronagraph 46 Ed Weiler NASA 46 Mars Opportunity rover 46 Shenzhou VII mission 46 Martian lander 46 Explorer WISE 46 Polar Satellite Launch 46 Flyby spacecraft 46 Russian crewmate Yuri 46 Scramjet 46 ESA SMOS 46 martian 46 shuttle Discovery 46 Malenchenko 46 Rover MER 46 NIRSpec 46 LSAM 46 Russian Soyuz rocket 46 stratospheric balloon 46 cometary 46 Canadarm2 46 Epoxi 46 Victoria Crater 46 unpiloted 46 Cartosat 46 SinoSat 46 Reconnaissance Orbiter 46 Michibiki 46 circular orbits 46 Vostok spacecraft 46 Europa Orbiter 46 ISRO Polar 46 Infrared Pathfinder Satellite 46 Characterization EPOCh 46 #/#-hour spacewalk [002] 46 wheeled rover 46 Sputnik beeped 46 NASA rover Spirit 46 orbiter robotic arm 46 hydroxyl molecules 46 GSLV Mk III 46 Comet Halley 46 unpowered 46 XMM Newton 46 astronaut Shannon Lucid 46 communications satellite Kwangmyongsong 45 Earth gravitational pull 45 geo stationary 45 SMOS mission 45 penumbral shadow 45 station airlock 45 C1XS 45 crawler transporter 45 payload fairing 45 Rokot 45 infrared observatory 45 ray Space Telescope 45 telescope 45 stage Naro rocket 45 cryogenic engine 45 Martian moons Phobos 45 twin rovers Spirit 45 Orion spacecraft 45 CHIPSat 45 interplanetary missions 45 aboard Vostok 45 OSTM Jason 2 45 Suni Williams 45 Ron Garan 45 NASA Spirit rover 45 P Churyumov Gerasimenko 45 Satellite Launch Vehicle 45 Yurchikhin 45 GPS IIF 45 engineer Timothy Kopra 45 robotic Canadarm 45 Laboratory MSL 45 VINASAT 1 45 Observatory STEREO 45 Asteroid Belt 45 ASTRA 1KR 45 Commander Sergei Volkov 45 sodium atoms 45 outer space 45 engineer Greg Chamitoff 45 Launch Vehicle 45 NASA twin STEREO 45 Commander Leroy Chiao 45 Opportunity rovers 45 cosmonauts Sergei Volkov 45 Gusev crater 45 Kosmos 3M rocket 45 Asteroid Itokawa 45 RL# engine 45 Shuttle astronauts 45 Launch Pad #A 45 Pluto Charon 45 commander Leroy Chiao 45 H IIA 45 radio occultation 45 Leonardo Multi Purpose 45 Permanent Multipurpose Module PMM 45 Satellite Launch Vehicle GSLV 45 shuttlecock shaped capsule 45 Daniel Tani 45 particle detector 45 Baikonur cosmodrome 45 ESA comet chaser 45 occultations 45 WISE telescope 45 Kliper 45 Pirs module 45 Kourou French Guiana 45 Jing Haipeng 45 Pilot George Zamka 45 Cosmonauts Sergei Volkov 45 gradiometer 45 remote sensing satellite 45 NASA Stratospheric Observatory 45 Eutelsat KA SAT 45 unplanned spacewalk