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(Click for frequent words.) 68 Voyager spacecraft 65 spacecrafts 63 Martian rovers 63 Nasa spacecraft 62 NASA Lunar Prospector 62 twin Voyager spacecraft 62 unmanned probes 62 Mars rovers Spirit 62 Viking landers 62 satellites orbiting Earth 61 Martian lander 61 orbiting observatories 61 radioisotope thermoelectric generators 61 Galileo spacecraft 61 spacecraft 60 interplanetary spacecraft 60 moons Phobos 60 orbital rendezvous 60 robotic probes 60 Solar TErrestrial RElations Observatory 59 robotic rovers 59 Stardust spacecraft 59 Curiosity rover 59 retroreflector 59 icy comets 59 Viking orbiters 59 Mars landers 59 Orbiter MRO 59 WISE spacecraft 59 robotic explorer 59 robotic spacecraft 58 Sojourner rover 58 Churyumov Gerasimenko 58 moon Io 58 rovers Spirit 58 Global Surveyor 58 infrared telescopes 58 Opportunity rovers 58 Mars Pathfinder 57 crewed spacecraft 57 Fermi telescope 57 Mars Pathfinder lander 57 NASA rovers 57 jovian 57 exoplanets orbiting 57 Mars Odyssey spacecraft 57 Orbiter LRO 57 APXS 57 rover Sojourner 57 New Horizons spacecraft 57 Express orbiter 57 Mars moon Phobos 57 probe Huygens 57 spaceward 57 JIMO 56 Lunar Prospector 56 neutron spectrometer 56 reentry capsule 56 orbiting telescopes 56 Mars Reconnaissance Orbiter MRO 56 outer planets 56 Mars rovers 56 orbiting 56 Viking Lander 56 lunar orbiters 56 orbiting observatory 56 Japan Hayabusa spacecraft 56 Supernova #A 56 robotic landers 56 spacecraft orbiting 56 lander rover 56 Comet #P/Churyumov-Gerasimenko 56 outermost planets 56 NASA THEMIS 56 Gusev crater 56 Nasa Mars Reconnaissance 56 Shackleton crater 56 Planck satellite 56 ESA XMM Newton 56 Ulysses spacecraft 56 icy moons 56 ray Space Telescope 55 Yinghuo 1 55 impactor spacecraft 55 spacecraft orbited 55 IBEX spacecraft 55 lunar landers 55 Martian orbit 55 GRACE satellites 55 Rosetta spacecraft 55 circumstellar disks 55 Epsilon Eridani 55 sized planets orbiting 55 Jupiter Ganymede 55 WMAP satellite 55 Hubble Space Telescope HST 55 extraterrestrial civilizations 55 neutrino detectors 55 X ray observatory 55 reconnaissance orbiter 55 BepiColombo 55 NASA Voyager spacecraft 55 INSAT 4CR 55 lunar equator 55 permanently shadowed craters 55 Galilean moons 55 exo planets 55 planetary Transits 55 Lunar Orbiter 55 Cassini flybys 55 ion thrusters 55 Hubble Space telescope 55 NASA Stardust spacecraft 55 interstellar particles 55 unmanned spacecraft 55 coronal mass ejections CMEs 55 rovers 55 spacecraft Hayabusa 55 Upsilon Andromedae 55 Philae lander 55 Rosetta orbiter 55 THEMIS satellites 55 NASA MESSENGER spacecraft 55 Solar Terrestrial Relations 55 comet Churyumov Gerasimenko 54 moons orbiting 54 Cassini Huygens 54 HiRISE camera aboard 54 Kaguya spacecraft 54 STEREO spacecraft 54 orbiting spacecraft 54 supergiant star 54 Kepler Telescope 54 spacecraft Cassini 54 WISE telescope 54 Opportunity rover 54 Huygens lander 54 stationary lander 54 robotic lander 54 orbiters 54 Earth orbiting satellites 54 exoplanets planets 54 Galactic cosmic rays 54 Cassini orbiter 54 infrared telescope 54 galaxy M# [001] 54 Saturn Cassini 54 highly elliptical orbits 54 interstellar dust samples 54 probe Chang'e 54 lunar crust 54 NASA rovers Spirit 54 Kepler spacecraft 54 orbiter lander 54 Relations Observatory STEREO 54 ST5 54 moon Deimos 54 Kuiper Belt Objects 54 #P/Churyumov-Gerasimenko 54 Near Infrared Camera 54 Bug Nebula 54 radioisotope thermoelectric generator 54 LRO spacecraft 53 planets orbiting stars 53 Martian dust 53 Geminga 53 volcanic moon Io 53 NASA Cassini 53 Convection Rotation 53 Alpha Particle 53 elongated orbits 53 robot rovers 53 Comet Hartley 2 53 particle detectors 53 X ray binary 53 ROSAT 53 orbiter Cassini 53 Martian equator 53 Solar Dynamics Observatory 53 lunar craters 53 X ray telescopes 53 Kepler 9c 53 Jovian moons 53 rover Opportunity 53 cosmic cannibal 53 comets orbiting 53 Epsilon Aurigae 53 asteroids orbiting 53 planets orbits 53 GOCE satellite 53 Zeta Ophiuchi 53 galactic disk 53 Apollo missions 53 Fomalhaut b 53 Manned missions 53 Martian crater 53 Epoxi 53 Martian rover 53 Impactor 53 protoplanets 53 Hayabusa spacecraft 53 particle smasher 53 X ray observatories 53 electric ion propulsion 53 planets Uranus 53 Suzaku X ray 53 Lunar Reconnaissance Orbiter LRO 53 Comet Halley 53 Jovian moon 53 manned lunar missions 53 exoplanetary 53 Mars orbiter 53 spacecraft Chandrayaan 1 53 rover Spirit 53 ion propulsion 53 asteroid Steins 53 Kuiper belt object 53 Chang'eI 53 EPOXI spacecraft 53 Hubble telescope 53 lander 53 meter Keck telescopes 53 protoplanetary 53 innermost planet 53 exosphere 52 detect gravitational waves 52 sunlike star 52 Polar Lander 52 OGLE TR #b 52 Global Surveyor spacecraft 52 Deep Impact probe 52 Clementine spacecraft 52 THEMIS spacecraft 52 Pluto Charon 52 Beta Pictoris b 52 Mars Orbiter 52 supernova explosion 52 orbit GEO 52 manned lunar 52 asteroid Itokawa 52 orbiting telescope 52 Evolution Explorer 52 Jupiter Icy Moons 52 GSLV rockets 52 martian atmosphere 52 Reconnaissance Orbiter 52 satellites orbiting 52 Cassini Huygens spacecraft 52 Ranging spacecraft 52 twin rover Spirit 52 Cometary 52 millisecond pulsar 52 spacecraft flyby 52 Rockot launcher 52 Keck telescopes 52 dexterous robot 52 Mars Polar Lander 52 planet Uranus 52 Lunokhod 52 Perseus Cluster 52 Cassini flyby 52 lunar rovers 52 Opportunity Mars rovers 52 infrared spectrometers 52 hypersonic speeds 52 Asteroid Belt 52 astronomical observatories 52 unmanned lunar orbiter 52 neutrino particles 52 Higgs bosons 52 spiral galaxy Messier 52 rocket thrusters 52 Upsilon Andromedae b 52 comets asteroids 52 Heliospheric Observatory SOHO 52 Nasa Mars Odyssey 52 orbiting Hubble Space Telescope 52 radial velocity technique 52 brightest supernova 52 moon landers 52 NASA Kepler spacecraft 52 RS Ophiuchi 52 Mars orbiting spacecraft 52 Neutron stars 52 planets orbiting sun 52 Martian craters 52 Martian terrain 52 entered lunar orbit 52 gaseous planet 52 magnetic dynamo 52 DIXI 52 Valles Marineris canyon 52 cosmic ray particles 52 geostationary orbits 52 ATV Johannes Kepler 51 NASA Kepler telescope 51 STSS Demo 51 smallest exoplanet 51 Utopia Planitia 51 Orbiters 51 wheeled rovers 51 Carina constellation 51 SIRTF 51 Keck Telescopes 51 hypersonic jet 51 volcano Olympus Mons 51 Observatory SDO 51 Super Kamiokande 51 Terrestrial Planet Finder 51 Infrared Astronomical Satellite IRAS 51 airglow 51 Climate Experiment GRACE 51 Trojan asteroids 51 gamma ray spectrometer 51 blackholes 51 geo synchronous 51 visit http:/saturn.jpl.nasa.gov 51 DSCS III 51 Lunar CRater Observation 51 geo stationary orbit 51 ESA ASI 51 extrasolar planets orbiting 51 galaxy M# [002] 51 NASA STEREO 51 interplanetary missions 51 Gerard Kuiper 51 moons orbiting Saturn 51 SMOS Soil Moisture 51 colliders 51 highly elliptical orbit 51 Shenzhou spacecraft 51 Kuiper Belt object 51 NASA Spirit rover 51 ExoMars mission 51 Odyssey orbiter 51 Mars Surveyor 51 Foton spacecraft 51 geosynchronous orbit 51 periodic dimming 51 geo stationary satellites 51 asteroid Eros 51 stabilizing gyroscopes 51 Kuiper belt objects 51 LightSail 1 51 Mars rovers Opportunity 51 Cassini spacecraft orbiting 51 Spectrograph 51 twin rovers Spirit 51 NASA Gamma ray 51 twin rovers 51 Shoemaker Levy 51 constellation Carina 51 NFIRE satellite 51 remote sensing satellite Resourcesat 51 X ray spectrometer 51 Kepler Mission 51 Mini Thermal Emission 51 Itokawa 51 Thermal Emission Spectrometer 51 INSAT satellites 51 twin rover Opportunity 51 NASAs 51 spacecraft thrusters 51 Hale Bopp 51 Titan 4B 51 NASA satellites orbiting 51 moonbase 51 scramjet engines 51 SSMEs 51 MESSENGER spacecraft 51 orbiting gamma ray 51 moon Enceladus 51 ionized gases 51 earthlike planets 51 Antennae galaxies 51 NASA Mars rover 51 GJ#b 51 Orion nebula 51 Shackleton Crater 51 lunar meteorites 51 Horizons spacecraft 51 geosynchronous satellite 51 Shepherding Spacecraft 51 interstellar dust grains 51 hypersonic missiles 51 retrograde orbit 51 protoplanet 51 Michibiki 51 MG J# +# 51 moon Mab 51 SpaceLoft XL 51 exhaust plume 51 subsurface ocean 51 Spirit Mars rover 51 ExoMars rover 51 SN #A 51 Samuel Oschin Telescope 51 thin crescent 51 Martian dust devils 51 Proxima Centauri 51 Observatory STEREO 51 Jupiter magnetosphere 51 celestial observations 51 Diviner instrument 51 asteroid Vesta 51 Dynamics Observatory 51 interstellar grains 51 origins spectrograph 51 Roddenberrys remains 51 Ray Spectrometer 51 asteroid flyby 51 extrasolar 51 telescopic observations 50 Saturnian moon 50 Cosmic Microwave Background 50 comet nucleus 50 Red Planet 50 robotic explorers 50 Neutron Detector 50 THEMIS mission 50 planet magnetosphere 50 KBOs 50 Dyna Soar 50 LightSail 50 binary asteroid 50 giant elliptical galaxy 50 coronal loops 50 intrinsic brightness 50 constellation Cassiopeia 50 NASA rover Opportunity 50 Optical Spectroscopic 50 thermonuclear fusion 50 lunar missions 50 lander Beagle 2 50 Earthlike planets 50 IRAS #-# 50 Kuiper Belt Object 50 inhabitable planets 50 radiotelescope 50 NuSTAR 50 Stephan Quintet 50 Submillimeter Array 50 flyby Cassini 50 orbiting Hubble telescope 50 NASA rover Spirit 50 cometary impacts 50 sunlike stars 50 gamma ray telescope 50 GALEX 50 Beta Pictoris 50 Minotaur rocket 50 filamentary structures 50 gravitational tides 50 moon Phobos 50 Hubbles 50 orbiting Mars 50 hexagonal mirrors 50 planemos 50 hypersonic glider 50 comet nuclei 50 Ring Nebula 50 Reflection Radiometer 50 gamma ray detectors 50 Hinode spacecraft 50 Mars Global Surveyor 50 Corot 7b 50 MTSAT 1R 50 spaceship 50 rotational axis 50 telescopes atop Mauna 50 moonquakes 50 Saturnian 50 orbital velocity 50 Tropical Rainfall Measuring 50 ALMA antennas 50 meteoroid 50 microshutters 50 Phobos Grunt 50 equatorial orbit 50 Rosetta comet chaser 50 alien civilizations 50 magma ocean 50 Nili Fossae 50 martian rocks 50 accretion disks 50 spaceplane 50 geostationary communications 50 planet Gliese #g 50 orbiter Mars Odyssey 50 Compton Gamma Ray 50 Hale Bopp comet 50 shadowed craters 50 Lunar Excursion Module 50 gamma ray emission 50 Nibiru 50 six wheeled rover 50 Lunar Rover 50 Noachian era 50 dynamical evolution 50 orbit 50 gamma ray observatory 50 constellation Aquila 50 Kwangmyongsong 50 NFIRE 50 manned spaceships 50 Antennae Galaxies 50 Mars orbiters 50 Mars rover Opportunity 50 Predator drone flies 50 telescope atop Mauna 50 spectroscopic measurements 50 robotic rover 50 NASA ICESat 50 NASA CloudSat 50 heatshield 50 yardangs 50 geyser plumes 50 Mars Opportunity rover 50 HiRISE camera 50 Spitzer infrared spectrograph 50 NASA Cassini spacecraft 50 axial tilt 50 Apophis asteroid 50 NPO Lavochkin 50 NASA LCROSS 50 circumstellar disk 50 Planetary nebulae 50 millisecond pulsars 50 asteroids 50 comet 50 Delta Cephei 50 microquasar 50 Ariane launchers 50 Galilean satellites 50 Hayabusa probe 50 NROL 50 WASP #b 50 Elenin 50 ramjets 50 asteroid 50 MUSES C 49 HM Cancri 49 ROCSAT 2 49 Saturn Enceladus 49 Gravity Probe B 49 Exploration Rover 49 galaxy NGC 49 Aqua satellite 49 proto galaxies 49 Eagle Nebula 49 ESA Planck 49 asteroid impacts 49 TDRS K 49 Keck Telescope 49 ESA ERS 49 Wilkinson Microwave Anisotropy Probe 49 antimatter particles 49 planetoids 49 protostars 49 proto planetary disk 49 nebular 49 Sun synchronous orbit 49 HiRISE image 49 Ariane launcher 49 Viking Orbiter 49 Jupiter Icy Moons Orbiter 49 interacting galaxies 49 booster rockets 49 lunar module Eagle 49 Bonneville Crater 49 geosynchronous satellites 49 Io Europa 49 distant supernovae 49 Comet Churyumov Gerasimenko 49 cosmic phenomena 49 rover 49 rocket nose cone 49 Venusian surface 49 Mars lander 49 lobate scarps 49 alien spaceships 49 Flyby spacecraft 49 Variable Specific 49 Eta Carinae 49 PASADENA Calif. NASA 49 CHIPSat 49 experimental payloads 49 onboard Chandrayaan 49 GOES satellites 49 Tauri Sb 49 outermost planet 49 BepiColombo mission 49 MARSIS radar 49 BLG #Lb 49 Omid Hope 49 laser altimeter 49 ESO VLT 49 lunar surface 49 Neutron Spectrometer 49 moons Europa 49 asteroids Ceres 49 Lunar Crater 49 Olympus Mons 49 twin STEREO spacecraft 49 inner asteroid belt 49 Mars Lander 49 LRO LCROSS 49 permanently shadowed crater 49 Globalstar satellites 49 icy moon Enceladus 49 proplyds 49 proton particles 49 slender crescent 49 Anik F2 49 Skynet 5C 49 starshade 49 constellation Hercules 49 landers 49 waxing crescent 49 Herschel telescope 49 Rosetta lander 49 Satellites GOES 49 comet chaser 49 Mars Odyssey orbiter 49 Planck telescope 49 Solar System 49 Hot Jupiters 49 V# Sgr 49 planets astronomers 49 exoplanet hunter 49 blue supergiant 49 Tanegashima remote 49 Lunar Reconnaissance Orbiter Camera 49 Insat 3A 49 Martian atmosphere 49 Moderate Resolution Imaging 49 exo planet 49 Cabeus crater 49 Nuclear Spectroscopic Telescope Array 49 LAGEOS 49 planets orbiting distant 49 THEMIS probes 49 Rosette Nebula 49 Geosynchronous 49 Mössbauer 49 cosmological distances 49 P/# A2 49 CERN particle accelerator 49 CoRoT satellite 49 winged spacecraft 49 LORRI 49 merging galaxies 49 Fermilab Tevatron 49 occultations 49 flyby spacecraft 49 outer corona 49 heaviest payloads 49 HARPS spectrograph 49 Space Agency JAXA 49 orbiting Kepler telescope 49 Cassini spacecraft 49 submarine Nautilus 49 planet WASP #b 49 trans Neptunian objects 49 Europa Orbiter 49 satellites 49 NASA twin rovers 49 Hellas Basin 49 Herschel Space Telescope 49 constellation Aquarius 49 VY Canis Majoris 49 IRC +# 49 Sojourner Rover 49 AB Aurigae 49 supergiant stars 49 Saturnian moons 49 lunar probes 49 ion propulsion engines 49 Mars Orbiter Camera 49 Planck spacecraft 49 Martian surface 49 radar altimeter 49 Infrared Astronomical Satellite 49 Comet Boethin 49 Soyuz booster 49 Saturn moons 49 Cryosat 49 Opportunity parachuted 49 THEMIS Image 49 IKAROS 49 ultraviolet imaging spectrograph 49 Theodore von Karman 49 stratospheric balloon 49 ecliptic plane 49 stargates 49 neutrino experiments 49 Uninhabited Aerial Vehicle 49 WGS satellites 49 colliding galaxies 49 Fregat upper stage 49 Foton M3 spacecraft 49 Faulkes Telescope 49 faraway planets 49 Titan flyby 49 proto cluster 49 infrared observatory 49 Red Rectangle 49 Diviner 49 moon Ganymede 48 eclipsing binary 48 elliptical galaxy NGC 48 micrometeoroids 48 comet particles 48 Titan IVB 48 GLAST telescope 48 Saturnian moon Titan 48 bedrock outcropping 48 Cloud Aerosol Lidar 48 NASA Lunar Reconnaissance 48 meteoritic material 48 WISE infrared 48 synchronous orbit 48 circumstellar 48 infrared astronomy 48 globular cluster M# 48 NASA Cosmic Background 48 galactic clusters 48 spiral galaxy NGC 48 relativistic particles 48 Climate Experiment 48 Space Telescope GLAST 48 moon Europa 48 tokamaks 48 spaceborne 48 Laser Interferometer Gravitational Wave 48 atmospheric reentry 48 Cargo Launch Vehicle 48 maneuvering thrusters 48 Gravity Probe 48 cometary particles 48 ammonia coolant tank 48 Canadarms 48 Gliese #c 48 Earths orbiting 48 Mössbauer spectrometer 48 xenon propellant 48 tokamak 48 PSLV C# rocket 48 helium atoms 48 Jupiter Saturn 48 fainter objects 48 SBSS satellite 48 MSL rover 48 meteoroid impacts 48 asteroidal 48 twin Viking landers 48 VASIMR 48 Lagoon Nebula 48 NASA Mars Odyssey 48 AU Mic 48 Ocean Salinity 48 Asteroid Itokawa 48 Earth orbit 48 comet dust 48 silicon monoxide 48 D CIXS 48 Gliese #d 48 Saturn outermost ring 48 Muchachos Observatory 48 YU# 48 Fornax cluster 48 cosmic strings 48 NASA Cassini orbiter 48 interstellar dust particles 48 nanosatellites 48 Array ALMA 48 airbursts 48 deuterium atoms 48 ESA Huygens probe 48 Pleiades cluster 48 STIS 48 constellation Lyra 48 neutrino detector 48 red supergiants 48 Orientale Basin 48 Rotary Joint SARJ 48 Cartosat 2A 48 interstellar dust clouds 48 Triangulum 48 KAGUYA 48 Keck telescope 48 Foton M3 48 scramjets 48 lander Philae 48 X ray Spectrometer 48 kiloton atomic bomb 48 Spaceguard Survey 48 fiery reentry 48 gravitational interaction 48 interplanetary probes 48 Cosmic Origins Spectrograph COS 48 Lunar Roving Vehicle 48 moon Mimas 48 planetary missions 48 unmanned airships 48 Spectroscopic Explorer 48 TDRS satellites 48 supernovae explosions 48 interstellar cloud 48 tractor beam 48 radiosondes 48 Mars Climate Orbiter 48 submillimetre wavelengths 48 Andromeda galaxy 48 Space Capsule 48 NASA twin STEREO 48 Multi Object Spectrometer 48 planet Nibiru 48 Mars rover Spirit 48 star Gliese 48 luminous galaxies 48 stellar occultations 48 gravitational slingshot 48 magnetic spectrometer 48 particle detector 48 Big Bang Machine 48 SMOS mission 48 SpaceLoft XL rocket 48 Solar Orbiter 48 solar nebula 48 Martian winters 48 Trifid 48 Giove B 48 orbits 48 ESA Rosetta 48 circular orbit 48 INSAT 4B 48 Earth asteroids 48 colloidal crystals 48 planetoid 48 polar craters 48 filamentary structure 48 discover Fomalhaut 48 ESA Huygens 48 energetic electrons 48 Helioseismic 48 shepherding spacecraft 48 exoatmospheric kill vehicle 48 Tunguska meteorite 48 Foton M2 48 EPOXI mission 48 Wolszczan 48 SPHERES 48 thermonuclear weapon 48 Infrared Pathfinder Satellite 48 Regolith 48 Mossbauer spectrometer 48 robotic rover Spirit 48 Mars Spirit rover 48 Express AM# 48 earth orbiting satellites 48 Earthlike planet 48 rocket boosters 48 Glonass navigation satellites 48 Enceladus flybys 48 XMM Newton 48 Magnetospheric 48 lunar landings 48 geosynchronous orbits 48 Cosmic rays 48 WISE mapped 48 Mauna Kea Hawaii 48 GRB #B 48 Fermi Gamma ray 48 Jupiter flyby 48 geo synchronous transfer 48 astrophysical phenomena 48 TNOs 48 orbits Saturn 48 Saturn moon Iapetus 48 ADM Aeolus 48 geosynchronous transfer orbit 48 Exoplanets 48 comet flyby 48 Centaur rocket 48 orbiting Chandra 48 graphite whiskers 48 nanosatellite 48 Director Charles Elachi 48 Alfven waves 48 orbital resonance 48 outer space 48 comet Wild 48 constellation Virgo 48 Helios 2B 48 parachutes malfunctioned 48 CAPE CANAVERAL Astronauts 48 Itokawa asteroid 48 Telescope Array 48 preset orbit 48 Astro E2 48 propellant tanks 48 manned Shenzhou 48 planets orbiting 48 Orbiter spacecraft 48 micrometeorite 48 asteroids comets 48 Kounotori vehicle 48 astronomical telescope 48 Jupiter icy moons 48 Cosmonaut Yuri Gagarin 48 Saturn moon Mimas 48 ESO telescopes 48 Kuiper belt 48 impactors 48 Messenger spacecraft 48 closest flyby 48 Kepler Space Telescope 48 synchronous polar 48 Envisat satellite 48 Deep Impact comet 48 Syrtis Major 48 ENAs 48 SMBHs 48 Imaging Spectrograph 48 mere fly bys 48 coronal holes 48 Soyuz Fregat launcher 48 planet HD #b 48 Interferometer VLTI 48 Ballistic missiles 48 Mojzsis 48 Comet Elenin 48 magnetars 48 noctilucent clouds 48 terra forming 48 Ofeq 48 constellation Draco 47 X#B 47 scramjet engine 47 NASA Far Ultraviolet 47 Earth Asteroid 47 Comet Hartley 47 supercontinents 47 uncrewed 47 LEO satellites 47 QQ# 47 planetary orbits 47 orbiting Mars Odyssey 47 spinning neutron stars 47 weather satellite TIROS 47 X ray Telescope XRT 47 emit X rays 47 C NOFS 47 star Proxima Centauri 47 CALIPSO 47 entire Milstar constellation 47 INSAT satellite 47 Butterfly Nebula 47 Distant galaxies 47 CryoSat satellite 47 Gemini telescopes 47 Saturn rings 47 scanning electron microscopes 47 imaging spectrometer 47 particle accelerators 47 Uchinoura Space Center 47 Galileo satellites 47 LCROSS spacecraft 47 manned lunar landing 47 Wolf Rayet stars 47 Cerro Paranal 47 Tunguska asteroid 47 Hubble gyroscopes 47 polar orbiting satellites 47 lunar orbiter 47 particle colliders 47 Kaguya 47 SIM PlanetQuest 47 Japan Kibo laboratory 47 Deep Impact eXtended Investigation 47 Venusian atmosphere 47 UKIRT 47 quadrocopter 47 lunar orbits 47 Saturnian system 47 hubble 47 Interior Laboratory GRAIL 47 ICBMS 47 Saturn magnetosphere 47 #/#-ton truss 47 Impact Probe MIP 47 aboard Taurus XL 47 GSLV D3 rocket 47 Descent Imager Spectral Radiometer 47 tidal bulge 47 VHE gamma rays 47 payload fairings 47 active galactic nucleus