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(Click for frequent words.) 70 subsurface ocean 68 Saturn moons Enceladus 67 planets comets 67 permanently shadowed craters 66 Jovian moon 66 Jupiter moon Io 66 icy moons 66 retrograde orbit 66 polar craters 65 Uranus Neptune 65 Saturnian moon 65 extrasolar 65 Corot 7b 65 moons orbiting 64 planet Gliese #g 64 Kuiper Belt Objects 64 Upsilon Andromedae b 64 COROT 7b 64 shadowed craters 64 moon Enceladus 63 lunar craters 63 Upsilon Andromedae 63 sized planets orbiting 63 shadowy craters 63 BLG #Lb 63 magma ocean 63 exoplanetary 63 mineral olivine 63 Io Europa 63 Neptune Uranus 62 Galilean satellites 62 airglow 62 interstellar cloud 62 Europa Ganymede 62 tholins 62 lunar crust 62 planets Uranus 62 Syrtis Major 62 coronal loops 62 Caloris 62 Phoebe orbits 62 GJ #b [002] 62 Cassini flyby 62 THEMIS Image 62 Jupiter Ganymede 62 Cassini Finds 62 planetary Transits 62 moon Io 61 Manned missions 61 Saturn Cassini 61 Bonnie Buratti 61 hydrated minerals 61 asteroids comets 61 comets asteroids 61 lunar meteorites 61 cosmic cannibal 61 ah dus 61 smoggy atmosphere 61 comets orbiting 61 Ontario Lacus 61 extrasolar planetary systems 61 IRC +# 61 Fomalhaut b 61 Saturn moon 61 moons Phobos 61 Oort Cloud 60 MG J# +# 60 moons circling 60 absorbs photons 60 Gliese #c 60 smoothest flattest spot 60 VY Canis Majoris 60 topographical characteristics 60 olivine mineral 60 comets meteors 60 HD#b 60 volcanic moon Io 60 galaxy M# [001] 60 photosphere 60 cryovolcanism 60 Cosmic Microwave Background 60 Gamma ray burst 60 Jupiter icy moons 60 hydrosphere 60 Saturn magnetosphere 60 Saturn moon Enceladus 60 Fermi telescope 60 exosphere 60 Corot 9b 60 astrobiologists 60 gamma ray observatory 60 Galilean moons 60 Quaoar 60 Earthlike 60 Comet Halley 60 smallest exoplanets 60 periodic dimming 60 Mars Uranus 60 comet Tempel Tuttle 60 Cassini Image 59 permanently shadowed regions 59 smallest exoplanet 59 Compact Reconnaissance Imaging Spectrometer 59 Galactic cosmic rays 59 whiz harmlessly 59 HiRISE camera aboard 59 planet HD #b 59 occultations 59 nebular 59 Exoplanets 59 Solar TErrestrial RElations Observatory 59 orbited Jupiter 59 gaseous planets 59 Perseus Cluster 59 OGLE TR #b 59 asteroidal 59 astrobiological 59 icy comets 59 Uranus Jupiter 59 GJ#b 59 planets circling stars 59 outer corona 59 Jonathan Lunine 59 Enceladus 59 exo planet 59 noctilucent clouds 59 Martian craters 59 Kuiper belt objects 59 gray hematite 59 cosmological distances 59 Titan Saturn 59 Bug Nebula 59 planets moons 59 largest moon Charon 59 retroreflector 59 star Spica 59 Palaeozoic sedimentary 59 moon Europa 59 ray Space Telescope 59 Mount Bosavi 59 evaporite deposits 58 McDonald Aeberli Funeral Home 58 accretion disks 58 Saturn icy moons 58 Jovian moons 58 solar corona 58 Charon Pluto 58 Exoplanet 58 Saturn moons 58 cometary dust 58 carbonate minerals 58 Jupiter moons Europa 58 galactic cosmic rays 58 Cometary 58 waxing crescent 58 Arsia Mons 58 distant supernovas 58 Svedhem 58 Jupiter Uranus 58 Samuel Oschin Telescope 58 Olympus Mons 58 comets moons 58 comet McNaught 58 Great Orion Nebula 58 Neptune Jupiter 58 Saturn moon Mimas 58 WISE telescope 58 spacecraft flyby 58 Cassini flybys 58 solar prominences 58 ionizes 58 Kuiper belt object 58 basalt volcanic 58 circumstellar 58 Vourlidas 58 Astrophysical 58 VB #b 58 waning gibbous 58 icy moon Enceladus 58 Mercury Uranus 58 exoplanets orbiting 58 Diviner 58 Astrological lore 58 circumstellar disk 58 Kraken Mare 58 radial velocity technique 58 Diviner instrument 58 volcano Olympus Mons 58 carbonaceous chondrites 58 planet Uranus 58 lunar magma 58 moon Ganymede 58 waitress Ingrid Sufan 58 Tharsis Rise 58 Lake Vostok 58 Candor Chasma 58 cometary debris 58 Muchachos Observatory 58 Mercury magnetosphere 58 retrograde orbits 58 flood basalts 58 Hot Jupiters 58 frigid arctic plains 58 Veil Nebula 58 olivines 58 silicon monoxide 58 Relations Observatory STEREO 58 inhabitable planets 58 silicate mantle 58 CoRoT 9b 58 sunlike stars 58 basaltic lava 58 Ian McShane Pillars 58 GJ #b [001] 58 Super Earths 58 constellation Aquarius 58 phyllosilicates 58 Mars CRISM 57 CoRoT satellite 57 comet nuclei 57 Orbiter LRO 57 Comet Hartley 2 57 moons Io 57 Mini Thermal Emission 57 buckypaper virtually 57 bedrock outcropping 57 jovian 57 Anthony Remijan 57 tidal bulge 57 Particle acceleration 57 Saturnian moon Titan 57 Hyakutake 57 Planck satellite 57 van Arkel discovery 57 Mars Uranus Neptune 57 Convection Rotation 57 planet Gliese #c 57 moon Phobos 57 zodiacal dust 57 constellation Aquila 57 planetary surfaces 57 ammonia hydrates 57 polar mesospheric clouds 57 TrES 4 57 constellation Carina 57 planets orbits 57 crystalline silicates 57 silicate dust 57 Evolution Explorer 57 Kepler 9c 57 Orion nebula 57 Astronomers Find 57 planets orbiting distant 57 emit X rays 57 Valles Marineris 57 interplanetary spacecraft 57 NASA Cassini 57 Churyumov Gerasimenko 57 molten magma 57 stellar occultations 57 telescopic observations 57 mineralogical composition 57 protoplanetary 57 Zeta Ophiuchi 57 Ultraviolet Imaging Spectrograph UVIS 57 Taurus Littrow Valley 57 jarosite 57 Earthlike planet 57 yardangs 57 protoplanetary disk 57 blue supergiant 57 gaseous planet 57 exo planets 57 occulted 57 Aurigid 57 Quadrantid meteor shower 57 CMB radiation 57 Composite Infrared Spectrometer 57 mesosphere 57 Neutron Detector 57 constellation Eridanus 57 hydrated silica 57 orbital resonance 57 extrasolar planets orbiting 57 Trifid 57 Comet Holmes 57 Extrasolar 57 Martian dunes 57 Comet Hale Bopp 57 albedo reflectivity 57 HD #b [002] 57 Venus Neptune Uranus 57 Martian dust 57 Epsilon Aurigae 57 transiting exoplanet 57 planets constellations 57 #P/Churyumov-Gerasimenko 57 IntergalaticEarth 57 Climate Sounder 57 GLAST telescope 57 circumstellar disks 57 exobiology 57 APXS 57 P/# A2 57 innermost planet 57 Cygnus Lyra region 57 heavily cratered 56 sterile neutrino 56 Spudis 56 lunar equator 56 hematite mineral 56 hydroxyl molecules 56 HD# [002] 56 Valles Marineris canyon 56 mu Arae 56 slender crescent 56 diffuse aurora 56 exoplanet orbiting 56 moon Mimas 56 prebiotic molecules 56 Earth magnetotail 56 Neutron Spectrometer 56 dimming starlight 56 lunar poles 56 Maunder minimum 56 Gliese #G 56 explosive volcanism 56 active volcanism 56 Saturnian moons 56 Martian rovers 56 magnetic polarity 56 Hubble orbits 56 moon Mab 56 WASP #b 56 waning crescent 56 Gusev crater 56 Kepler #b 56 infall 56 orbiting gamma ray 56 carbonaceous chondrite 56 Pluto Eris 56 Saturn Jupiter Uranus 56 visit http:/saturn.jpl.nasa.gov 56 Earthlike planets 56 imaging spectrometer 56 gamma rays emitted 56 SKY WATCH 56 Coma Cluster 56 Saturn outermost ring 56 proplyds 56 Venusian atmosphere 56 aurorae 56 journal Icarus 56 protoplanet 56 magnetotail 56 Kuiper belt 56 neutral mass spectrometer 56 Geminga 56 Cancri e 56 Saturn moons Titan 56 Epsilon Eridani 56 Gliese #e 56 lunar soil 56 magnetospheric 56 HiRISE image 56 equatorial latitudes 56 constellation Hercules 56 KH #D 56 Wilkinson Microwave Probe 56 Martian rocks 56 Mössbauer 56 Planetary Transits 56 MARSIS radar 56 filamentary structure 56 moonquakes 56 icy crust 56 Saturn moon Iapetus 56 Lunine 56 Wolszczan 56 liquid ethane 56 heliospheric 56 carbonate globules 56 crossbedding 56 Kuiper Belt Object 56 NASA rovers Spirit 56 clathrates 56 martian rocks 56 supersymmetric particles 56 YOUR HOROSCOPE 56 WMAP satellite 56 Orionids 56 Ringed Planet 56 planetary transits 56 discover Fomalhaut 56 Venusian 56 prograde 56 Io Europa Ganymede 56 planemos 56 particle analyzers 56 Pluto Charon 56 SN #A 56 galaxy M# [002] 56 terraforming Mars 55 detect neutrinos 55 Hakan Svedhem 55 Franck Marchis 55 Martian surface 55 X ray spectrometer 55 Oort cloud 55 sunlike star 55 Extrasolar Planet 55 Hubble Near Infrared 55 Nasa Mars Reconnaissance 55 equatorial bulge 55 chromosphere 55 mantle plumes 55 Ring Nebula 55 Henize #-# 55 Dan Buhl Planetarium 55 McMurdo Dry Valleys 55 astronomical objects 55 IBEX spacecraft 55 Jupiter magnetosphere 55 CoRoT #b 55 Jupiter moons 55 ionized particles 55 seafloor methane 55 neutron spectrometer 55 Comet Tempel Tuttle 55 merging galaxies 55 emission nebula 55 volcanic lava flows 55 Eta Aquarid meteor shower 55 Nikku Madhusudhan 55 Descent Imager Spectral Radiometer 55 Eagle Nebula 55 greatest insect emergences 55 stellar seismology 55 Global Surveyor spacecraft 55 atmospheric oceanic 55 constellation Lacerta 55 Martian terrain 55 electrons protons 55 abyssal plain 55 Infrared Pathfinder Satellite 55 Earth ionosphere 55 coronal holes 55 distant quasars 55 Mars Phobos 55 Pavonis Mons 55 polar stratospheric 55 habitable planets 55 -# degrees centigrade [001] 55 Red Rectangle 55 axial tilt 55 silicate rocks 55 planetary alignments 55 interstellar dust clouds 55 Galileo spacecraft 55 Thermal Emission Spectrometer 55 ESA XMM Newton 55 basaltic rocks 55 stellar nurseries 55 meteorite impacts 55 Hale Bopp 55 planets orbiting sun 55 Herschel Space 55 Venus Uranus 55 ionized hydrogen 55 sulfate minerals 55 Image NASA JPL 55 barred spiral galaxy 55 constellation Scorpius 55 ionise 55 dusty disks 55 cosmic ray flux 55 Deep Impact eXtended Investigation 55 meridional flow 55 cosmic phenomena 55 hydrologic cycle 55 Today waxing Virgo 55 solar nebula 55 Lake Untersee 55 constellation Serpens 55 magma cools 55 X ray wavelengths 55 supergiant star 55 Beta Pictoris b 55 HL Tau 55 extrasolar planet 55 thin crescent 55 Paul Spudis principal 55 ammonia hydrate 55 Terra Sirenum 55 Comet 9P/Tempel 1 55 gravitational interaction 55 Fermi Telescope 55 habitable zones 55 constellation Pegasus 55 ejecta 55 quark gluon 55 PSR B# +# 55 spectral fingerprint 55 protoplanetary disks 55 elongated orbits 55 methane ethane 55 Comet #P 55 planetary atmospheres 55 star Gliese 55 spatially resolved 55 sundog 55 substorm 55 lava tubes 55 geyser plumes 55 moons orbiting Saturn 55 Mars Jupiter Uranus 55 Nasa spacecraft 55 planetary nebulas 55 Gerhard Schwehm 55 spectrographic 55 zodiacal constellation 55 Mojzsis 55 undersea volcanoes 55 particle acceleration 55 active galactic nucleus 55 RS Ophiuchi 55 inch Samuel Oschin 55 star Beta Pictoris 55 Anisotropy Probe 55 terrestrial planets 55 Michael Studinger 55 trans Neptunian objects 55 planet orbits 55 Io volcanoes 55 Quadrantids 55 interstellar dust grains 55 spectroscopically 54 Di Achille 54 distant supernovae 54 cometary impacts 54 KBOs 54 Comet Hartley 54 auroral displays 54 Libra adore 54 Cassini imaging 54 sulfate salts 54 Orionid meteors 54 GALEX 54 Omega Centauri 54 Geminid shower 54 waxing gibbous 54 Omega Nebula 54 Asteroid Belt 54 stony meteorites 54 Orbiter MRO 54 mysterious uncharted 54 solidified lava 54 Martian permafrost 54 waning crescent Moon 54 lunar perigee 54 phyllosilicate 54 gibbous 54 Extrasolar Planets 54 zodiacal constellations 54 Titan smoggy 54 lunar orbiting spacecraft 54 Wide Angle Search 54 YORP effect 54 zodiacal light 54 gravitational radiation 54 Phaethon 54 nucleosynthesis 54 Antarctic Dry Valleys 54 Comet Elenin 54 Saturn outermost 54 Viking Orbiter 54 interstellar dust particles 54 smoothest flattest 54 Rossby waves 54 Planetary Fourier Spectrometer PFS 54 NASA Wilkinson Microwave 54 journal Meteoritics 54 Pleiades star 54 supergiant stars 54 Venusian surface 54 Kepler Space Telescope 54 Endurance crater 54 celestial sphere 54 NASA Spacecraft 54 Horsehead Nebula 54 emits X rays 54 Dumbbell Nebula 54 stratospheric clouds 54 Near Infrared Camera 54 Plutoids 54 Mini TES 54 Banerdt 54 exoplanets planets 54 interstellar dust 54 Alfven waves 54 magnetic monopoles 54 gravitational tides 54 Ionosphere Sounding 54 -# degrees Fahrenheit [002] 54 mudpots 54 Explosive eruptions 54 ionised gas 54 missing baryons 54 rover Spirit landed 54 Saturn Uranus Neptune 54 Infrared Thermal Imaging Spectrometer 54 polar vortex 54 Explorer WISE 54 neutrino particles 54 water vapor condenses 54 meteoritic material 54 single celled microorganisms 54 protoplanetary discs 54 asteroids orbiting 54 infalling 54 Dhanu Rashi 54 Opportunity Mars rover 54 Martian moons Phobos 54 cometary material 54 Voyager Galileo 54 astrophysical phenomena 54 astrophysical objects 54 interstellar clouds 54 Hellas Basin 54 Rosette Nebula 54 rocky extrasolar planet 54 Pluto moon Charon 54 moon Dione 54 planet magnetosphere 54 volcanically active 54 glowing brightly 54 Coma cluster 54 Mewaldt 54 NYSE DENT 54 IRAS #-# 54 earthlike 54 Cat Paw Nebula 54 Saturn Moons 54 Reiner Gamma 54 Virgo Cluster 54 millisecond pulsar 54 gravitational anomalies 54 chondritic meteorites 54 Miniature Thermal Emission 54 Cydonia region 54 meteor impacts 54 coronal mass ejections CMEs 54 Helioseismic 54 eclipsing binary 54 Scorpio adore 54 Bill Borucki Kepler 54 equatorial plains 54 GQ Lupi 54 blocks harmful ultraviolet 54 Infrared Array Camera 54 de Pater 54 Giovanni Cassini 54 novas 54 Nasa Kepler 54 Elenin 54 lunar highlands 54 subglacial 54 Orcus Patera 54 X ray emitting 54 moon Titan 54 martian meteorites 54 Ulysses spacecraft 54 Higgs bosons 54 ESA Integral 54 OMEGA instrument 54 starlike object 54 Heliospheric Observatory SOHO 54 Quadrantid 54 luminous galaxies 54 best disinfectant Chernoff 54 spectroscopic observations 54 Rosetta lander 54 starquakes 54 shaded craters 54 olivine crystals 54 Sagittarius adore 54 orbits Saturn 54 gaseous methane 54 Fermi Gamma ray 54 frozen sunless 54 spheroidal 54 Martian volcanoes 54 faraway planets 54 exosolar planets 54 electrons positrons 54 Foton M3 54 Comet Machholz 54 spaceweather.com 54 NASA Fermi Gamma 54 Charles Beichman 54 NASA THEMIS 54 twin suns 54 ESO VLT 54 Wolf Rayet stars 54 Terra Meridiani 54 exoplanets planets outside 54 Gliese #g 54 EPOXI spacecraft 54 planets atmospheres 54 BP Piscium 54 hydrothermal fluid 54 Arabia Terra 54 Galaxy Evolution 54 HARPS instrument 54 constellation Pisces 54 intrinsic brightness 54 constellation Virgo 54 Venus Jupiter Uranus 54 Kepler Telescope 54 volcanic magma 54 Lagoon Nebula 53 Goldilocks planet 53 Viking orbiters 53 hunting Kepler telescope 53 PUVA psoralen plus 53 planetary astronomer 53 primordial ingredients 53 Cepheid variables 53 Voorwerp 53 astronomer Clyde Tombaugh 53 volcanic basalt 53 NASA Lunar Prospector 53 submillimetre wavelengths 53 binary asteroid 53 stalactites stalagmites 53 Regolith 53 NASA twin STEREO 53 electron neutrinos 53 Cassini spacecraft orbiting 53 Earthly contamination 53 SNR #-#.# 53 Meteor Showers 53 Spectroscopic 53 earthshine 53 multiband imaging photometer 53 nightglow 53 Crab Nebula 53 ionized gases 53 Kepler Mission 53 constellation Vulpecula 53 lava flowed 53 Saturn Uranus 53 HD #b [001] 53 Kuiper Belt object 53 Shallow Subsurface Radar 53 Shiveluch 53 southern supercontinent 53 Gravitational waves 53 Kounaves 53 Spectrograph 53 habitable worlds 53 Greenhouse gases trap 53 AU Mic 53 Neptunian 53 Circinus 53 NASA ICESat 53 mineralogical mapping 53 NASA astrobiologist 53 planets orbiting stars 53 Fossae 53 relativistic particles 53 Mars Saturn Uranus 53 LADEE 53 Milankovitch cycles 53 sulfate aerosols 53 lowermost mantle 53 primitive meteorites 53 Foing 53 spectral fingerprints 53 extrasolar planetary 53 Planetary nebulae 53 particle astrophysics 53 Extrasolar planets 53 Greg Delory 53 Solar Terrestrial Relations 53 Tempel Tuttle 53 assumed planets circling 53 habitable planet 53 Hanny Voorwerp 53 planetary orbits 53 Observatory STEREO 53 carbonyl sulfide 53 astrophysical 53 gravity warps 53 eccentric orbits 53 Mimas 53 layered bedrock 53 inner Oort Cloud 53 geomicrobiology 53 Mini SAR 53 Plate tectonics 53 asteroid Vesta 53 polar caps 53 orbital eccentricity 53 Submillimeter Array 53 ultraviolet imaging spectrograph 53 Magnetospheric 53 lunar regolith 53 planetary conjunctions 53 called gray hematite 53 Delta Cephei 53 reflection nebula 53 lobate scarps 53 Methone 53 Pleiades cluster 53 mud volcanoes 53 planetary nebula 53 ESA Planck 53 axions 53 Magnetars 53 windshield wiper maneuver 53 Mars orbiting spacecraft 53 backscattered 53 http:/www.nasa.gov/cassini 53 Gravitational lensing 53 Comet Lulin 53 Mars 53 pre biotic 53 Avishay Gal Yam 53 spinning neutron 53 melt inclusions 53 Martian equator 53 exerts gravitational pull 53 fumaroles 53 Larry Soderblom 53 superstrings 53 ultraviolet photons 53 choking irritants 53 Follett Pillars 53 starburst galaxy 53 Antiope 53 cosmic ray intensity 53 Astrophysicist 53 Trapezium 53 Martian landscape 53 isotopic ratios 53 Mercury flyby 53 galactic clusters 53 AB Aurigae 53 submillimeter galaxies 53 Krimigis 53 ASTROLOGICAL TOPICS 53 Moon Mineralogy Mapper M3 53 RRATs 53 blazars 53 Libra constellation Vogt 53 ChemCam 53 Becky Ramotowski 53 Sromovsky 53 potentially habitable 53 Bramley Murton 53 hydrologist Carolyn Driedger 53 http:/saturn.jpl.nasa.gov 53 Saturnian system 53 Heterodyne Instrument 53 Butterfly Nebula 53 geysers erupting 53 planets asteroids 53 orbiting Kepler telescope 53 HARPS spectrograph attached 53 moons Europa 53 Swift Tuttle 53 Noctilucent clouds 53 V# Mon 53 extragalactic 53 SPICAM 53 inch refractor telescope 53 mineral hematite 53 calderas 53 cinder cones 53 Extrasolar Planet Search 53 Martian meteorites 53 sun corona 53 Martian crater 53 Solar Dynamics Observatory 53 planetary geologists 53 Helix nebula 53 Beta Pictoris 53 Bruce Banerdt 53 homochirality 53 permafrost thaws 53 geologist Jennifer Adleman 53 moondust 53 electromagnetic flux 53 Robin Canup 53 hydrothermal activity 53 cosmic rays collide 53 subglacial lakes 53 HESS telescopes 53 Cloud Aerosol Lidar 53 plutoids 53 star Fomalhaut 53 Cabeus crater 53 weakly interacting 53 Inhaling steam 53 polarimetry 53 radial velocity 53 thermal vents 53 constellations Cygnus 53 orbiting observatories 53 double helix nebula 53 JPL manages 53 constellation Ursa Major 53 gravitationally lensed 53 S/# S1 53 auroral emissions 53 Keck Interferometer 53 constellation Taurus 52 Iapetus 52 Huygens descent 52 Neutron stars 52 gray hematite mineral 52 Taurus Littrow 52 Predator drone flies 52 moon Iapetus 52 Epoxi 52 sodium atoms 52 Uranian 52 microwave radiometers 52 zodiac constellations 52 Aram Chaos 52 Gamburtsev 52 electron ion 52 ESA Mars 52 Sagittarius B2 52 Cassini ultraviolet 52 Bok globules 52 exoplanet atmospheres 52 harmonic tremors 52 moonlet 52 spookfish 52 systems EW suites 52 red supergiant 52 spacecraft orbiting 52 Chilean Atacama Desert 52 Spitzer infrared spectrograph 52 fainter objects 52 spacecraft orbited 52 magnetic reconnection 52 Pieter van Dokkum 52 ejecta curtain created 52 sedimentary deposits 52 Martian meteorite 52 Aquarius adore 52 VIRTIS instrument 52 Malcolm Fridlund 52 protostars 52 galaxy redshift 52 extraterrestial 52 lightless depths 52 amateur astronomers peering 52 meteoroid impacts 52 microbialites 52 prolific Key Tuffite 52 X ray binaries 52 superheated gases surrounding 52 orbiting Chandra 52 Volatile Evolution 52 concretions 52 Aqua satellite 52 comets 52 Neukum 52 super perigee moon 52 Hörst 52 Caloris Basin 52 purplish brown 52 superfluids 52 joins rovers Spirit 52 mesospheric 52 Martian polar 52 volcanically 52 Virgo adore 52 Moderate Resolution Imaging 52 ghostly glow 52 ultracold 52 Saturn rings 52 Opportunity rover 52 Adam Riess 52 Jupiter Saturn 52 Gamma ray 52 nebulae 52 outermost planet 52 Mars Atmosphere 52 energetic electrons 52 rotating neutron 52 Sombrero Galaxy 52 constellation Draco 52 radioactive nuclei 52 microscopic single celled