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(Click for frequent words.) 71 dwarf planet 70 plutoids 67 plutoid 66 Pluto Eris 64 asteroid Ceres 64 Kuiper Belt objects 63 trans Neptunian objects 63 Kuiper Belt object 60 UB# [003] 60 Makemake 59 plutons 59 Kuiper belt objects 58 dirty snowballs 58 super Earths 57 Pluto Charon 57 Kuiper belt 57 terrestrial planets 56 Galilean moons 56 gravitationally bound 56 S/# P2 56 Kuiper Belt Objects 56 Gliese #g 56 nicknamed Xena 55 planethood 55 spiral nebulae 55 Kuiper Belt Object 55 Galilean satellites 55 Kuiper Belt 55 rocky planets 55 GJ#b 55 KBOs 55 planemos 54 planets 54 Quaoar 54 planetoids 54 CoRoT #b 54 demoted Pluto 54 planets orbiting sun 54 icy moons 54 Corot 7b 54 Omega Centauri 54 hot Jupiters 54 supersymmetry 54 magnetars 53 Earthlike 53 moon Charon 53 baryon 53 planets orbiting 53 WASP #b 53 GJ #b [001] 52 brown dwarfs 52 exoplanets 52 transiting planets 52 gaseous planets 52 OGLE TR #b 52 planetary embryos 52 protoplanet 52 AGNs 52 exoplanets orbiting 52 extrasolar planets 52 Haumea 51 chondrites 51 HD #b [002] 51 asteroids comets 51 Pluto moon Charon 51 Upsilon Andromedae 51 Martian meteorites 51 planets astronomers 51 Goldilocks zone 51 Antennae Galaxies 51 exoplanet 51 HD#b 51 millisecond pulsars 51 gaseous planet 51 demote Pluto 51 inhabitable planets 51 luminous galaxies 51 extrasolar planetary systems 50 retrograde orbits 50 Epsilon Eridani 50 astronomical objects 50 moons Phobos 50 CoRoT 7b 50 moons orbiting 50 dwarf galaxies 50 eclipsing binary 50 extrasolar 50 supersymmetric 50 moons JAXA 50 planetoid 50 planets comets 50 Globular clusters 50 Kepler 9c 50 Pluto 50 globular cluster 50 Oort cloud 50 globular clusters 50 habitable zones 50 planets orbiting distant 50 proto planetary disks 50 oblate spheroid 50 BLG #Lb 50 XO 3b 50 Oort Cloud 50 outermost planets 50 Jovian moons 49 astronomers 49 brown dwarf 49 Higgs bosons 49 asteroids 49 Sedna 49 Earthlike planets 49 gravitational interactions 49 planets asteroids 49 Pluto demotion 49 baryons 49 planets orbits 49 largest moon Charon 49 spiral galaxies 49 planets circling stars 49 transiting planet 49 planets orbiting stars 49 globulars 49 leptons 49 Hot Jupiters 49 giant gaseous planets 49 hadrons 49 Spiral galaxies 49 S/# S1 49 X ray binary 49 planetary nebulae 48 Kuiper belt object 48 carbonaceous chondrite 48 asterism 48 supersymmetric particles 48 comets orbiting 48 habitable planets 48 GJ #b [002] 48 sized planets orbiting 48 boson 48 Kepler #b 48 Gliese 48 antiparticles 48 Andromeda Galaxy 48 phyllosilicates 48 protons neutrons 48 supermassive 48 interstellar dust grains 48 ALH# 48 Super Earths 48 red supergiants 48 branes 48 International Astronomical 48 gravitational microlensing 48 Triangulum 48 TNOs 48 moons 48 chondrules 48 Hollywood dreck Battlefield 48 elliptical galaxies 48 habitable planet 48 merging galaxies 48 neutralinos 48 Saturn rings 48 potentially habitable 48 moonlets 48 dynamical evolution 48 axions 48 R#a# 48 Zeta Ophiuchi 47 COROT exo 3b 47 baryonic matter 47 nebular 47 celestial bodies 47 moon Europa 47 Higgs particle 47 star Gliese 47 Henize #-# 47 Jupiter Ganymede 47 proto cluster 47 habitable zone 47 protostars 47 hydrostatic equilibrium 47 cosmological theories 47 Neutron stars 47 Triangulum Galaxy 47 HM Cancri 47 sunlike star 47 planetesimals 47 exoplanetary 47 asteroids orbiting 47 elongated orbits 47 planet orbiting 47 P/# A2 47 red supergiant 47 Trojan asteroids 47 Jupiter Saturn Uranus 47 mu Arae 47 BP Psc 47 Gliese #c 47 planet orbits 47 hydrogen helium 47 planets Uranus 47 eccentric orbits 47 Cosmic Microwave Background 47 carbonaceous chondrites 47 celestial objects 47 Cancri 47 quantum gravity 47 sunlike stars 47 NGC# 47 microlensing 47 lensing galaxy 47 Saturn Uranus Neptune 47 Milky Way Galaxy 47 Small Body Nomenclature 47 circular orbits 47 Wolszczan 47 galaxy M# [002] 47 exo planets 47 moon Ganymede 47 Dumbbell Nebula 47 comets 47 spatial dimensions 47 Andromeda galaxy 47 W boson 47 potentially habitable planets 47 silicates 47 Quadrantids 47 TrES 46 magma ocean 46 TrES 4 46 gravitational lenses 46 supercontinent 46 hypervelocity stars 46 hadron 46 fainter objects 46 Cancri e 46 Konacki 46 redshifts 46 orbits 46 gravitational perturbations 46 star Proxima Centauri 46 constellation Ursa Major 46 protoplanetary disks 46 Solar TErrestrial RElations Observatory 46 Upsilon Andromedae b 46 Earth asteroids 46 BLG #L 46 Fomalhaut b 46 Uranus Neptune 46 Avishay Gal Yam 46 magnetar 46 lunar soil 46 extrasolar planet 46 orbital resonance 46 Beta Pictoris b 46 planetesimal 46 planets circling 46 exosphere 46 demoting Pluto 46 separately fertilized eggs 46 Cepheids 46 habitable worlds 46 Dwarf Planet 46 neutralino 46 planetary 46 gravitational lensing 46 outer planets 46 Terrestrial Planet Finder 46 AU Mic 46 astrophysicists 46 astronomer 46 nebulae 46 tholins 46 GQ Lupi 46 planetary nebula 46 Gliese #d 46 strange quark 46 Wolf Rayet star 46 tau neutrinos 46 nucleobases 46 Sagittarius dwarf galaxy 46 planetary nebulas 46 cosmic phenomena 46 cosmological distances 46 Proxima Centauri 45 supernovae 45 impactors 45 Cepheid variables 45 J# +# [002] 45 constellation Hercules 45 VB #b 45 Maunder minimum 45 blazars 45 exoplanet orbiting 45 galactic clusters 45 carbonate globules 45 millisecond pulsar 45 magnetic monopoles 45 quark gluon plasma 45 Neptune Uranus 45 asteroidal 45 hydrated minerals 45 SN #C 45 X ray binaries 45 moonlet 45 lunar crust 45 olivine 45 IAU definition 45 Exoplanets 45 kaons 45 equatorial bulge 45 Torino Scale 45 superheavy elements 45 icy comets 45 singularities 45 asteroid 45 mesons 45 antiparticle 45 galactic disk 45 Maria Zuber 45 planets moons 45 Wolf Rayet stars 45 exosolar planets 45 binary asteroid 45 exoplanets planets 45 Phaethon 45 retrograde orbit 45 COROT 45 pyroxene 45 spheroidal 45 geoid 45 Pluto dwarf 45 meteor impacts 45 Milky Way 45 supervolcanoes 45 SN #A 45 Extrasolar planets 45 Richard Binzel 45 Milky Way halo 45 Milankovitch cycles 45 HAT P 45 dimming starlight 45 exobiology 45 IntergalaticEarth 45 comets asteroids 45 X ray wavelengths 45 neutron stars 45 BepiColombo 45 cosmologists 45 protoplanets 45 Cabeus 45 Anisotropy Probe WMAP 45 cosmological constant 44 quark 44 fierce inhospitality 44 scarps 44 interstellar grains 44 heliocentric model 44 Goldilocks planet 44 SMBHs 44 distant quasars 44 phylum 44 GEochemistry 44 exoplanets planets outside 44 carbonate minerals 44 silicate dust 44 NEOs 44 landmasses 44 dwarf galaxy 44 cosmological 44 planets Kepler 44 Earth radii 44 sparticles 44 proplyds 44 galaxy M# [001] 44 Type Ia supernovae 44 nucleotide bases 44 braneworld 44 elliptical galaxy 44 spherically symmetric 44 Higgs boson 44 exo planet 44 Mercury magnetosphere 44 colliding galaxies 44 Higgs Boson 44 SUSY 44 spiral galaxy 44 coronal loops 44 meteoritic material 44 unicellular organisms 44 SN #gy 44 Virgo cluster 44 Planck satellite 44 Stephan Quintet 44 baryonic 44 Pan STARRS 44 Toutatis 44 sterile neutrinos 44 CoRoT 9b 44 distant quasar 44 dustier stormier atmosphere 44 Milky Way galaxy 44 novas 44 Inuit goddess 44 HIP #b 44 missing baryons 44 macroscopic objects 44 Saturnian moon 44 neutron star 44 Martian moons 44 spherical halo 44 Bose Einstein condensates 44 photosphere 44 Dwarf galaxies 44 stellar nurseries 44 Martian craters 44 supernovas 44 COROT 7b 44 Schrödinger cat 44 constellation Lyra 44 Europa Ganymede 44 spacetime 44 filamentary structure 44 Sara Seager 44 geostationary orbits 44 magnetospheres 44 subsurface ocean 44 Epsilon Aurigae 44 tidally locked 44 constellation Pegasus 44 supergiant stars 44 anthropic principle 44 Red Rectangle 44 SDSS II 44 planetary orbits 44 smallest exoplanet 44 Gliese #G 44 TW Hydrae 44 assumed planets circling 44 B mesons 44 Io Europa Ganymede 44 spherules 44 Helmi stream 43 axial tilt 43 galactic mergers 43 massless particles 43 celestial object 43 Serpens Cauda 43 Coma Cluster 43 Beta Pictoris 43 vibrating strings 43 gravitational redshift 43 Grillmair 43 squares triangles 43 polar craters 43 SN#A 43 GRBs 43 outermost planet 43 cumulus 43 colloidal crystals 43 observable universe 43 constellation Libra 43 antiquark 43 submillimeter galaxies 43 galaxy cluster 43 supernovae explode 43 eclipsing binaries 43 MErcury Surface Space ENvironment 43 IAU 43 Magnetars 43 active galactic nuclei 43 WIMPs 43 Gravitational waves 43 nebulosity 43 ejecta 43 Jupiter gravitational pull 43 trans Neptunian 43 clathrates 43 orbital inclination 43 MESSENGER MErcury Surface 43 organic molecules 43 circumstellar disks 43 Scorpii 43 intelligent beings 43 astronomer Johannes Kepler 43 Astrological lore 43 cosmology 43 discover Fomalhaut 43 Platonic solids 43 galactic cosmic rays 43 Jupiter Saturn 43 moons Europa 43 galaxies 43 asteroid belt 43 nucleons 43 superstrings 43 distant supernovae 43 Bug Nebula 43 Ring Nebula 43 reionization 43 Cetomimidae 43 stony meteorites 43 S/# [001] 43 astrophysical phenomena 43 Tianyulong 43 elliptical orbits 43 RS Ophiuchi 43 Comet Holmes 43 God Particle 43 VY Canis Majoris 43 Near Infrared Camera 43 German astronomer Johannes 43 epicycles 43 noble gases 43 dense clumps 43 cosmic cannibal 43 Eagle Nebula 43 supernova remnants 43 noctilucent clouds 43 VD# [001] 43 Solar System 43 accretion disks 43 constellation Taurus 43 GLAST telescope 43 impactor spacecraft 43 ultraviolet wavelengths 43 Adam Riess 43 luminosities 43 interstellar dust 43 GALEX 43 meteoroid 43 highly elliptical orbit 43 starburst galaxy 43 Space ENvironment GEochemistry 43 Astrophysicists 43 earthlike planets 43 volcano Olympus Mons 43 planet HD #b 43 BP Piscium 43 astronomy 43 redshift 43 Galaxies 43 Cabeus crater 43 planetary astronomy 43 RQ# 43 cinder cones 43 Imke de 43 Gliese #e 43 Gerard Kuiper 43 solar nebula 43 polygon patterns 42 subatomic particle 42 telescopic observations 42 protoplanetary disk 42 planetary Transits 42 Late Heavy Bombardment 42 extrasolar planets orbiting 42 quasars 42 CubeSats 42 Muons 42 binary asteroids 42 ULIRGs 42 Jupiter moon Io 42 Enceladus 42 Keck telescopes 42 planet transits 42 Fornax cluster 42 weak gravitational lensing 42 AB Aurigae 42 Owen Gingerich 42 HD# [002] 42 foreground galaxy 42 quantum particle 42 galaxy clusters 42 phyla 42 Io Europa 42 Mercury Uranus 42 dwarf planets exist 42 orbits Saturn 42 Linhenykus 42 planet Gliese #g 42 lobate scarps 42 Saturn moons 42 Pulsars 42 pulsars 42 Epsilon Indi 42 Arches Cluster 42 quarks 42 GRB #B 42 polar caps 42 abiogenesis 42 PASADENA Calif. Astronomers 42 Comet Halley 42 Himiko 42 planet Gliese #c 42 frigid arctic plains 42 amorphous calcium carbonate 42 Optical Gravitational Lensing Experiment 42 CoRoT 42 jovian 42 atoms 42 Jovian moon 42 orbiting 42 meteoroids 42 Carina constellation 42 constellation Virgo 42 regolith 42 occulted 42 exoplanet hunter 42 microlensing events 42 Nili Fossae 42 Lagoon Nebula 42 smallest extrasolar planet 42 OGLE 42 astrometry 42 zodiac constellations 42 cryosphere 42 barred spiral galaxy 42 supergiant star 42 Saturn moons Enceladus 42 Einstein equations 42 atomic nuclei 42 starburst galaxies 42 flatfishes 42 cosmological observations 42 XTE J# 42 prokaryotes 42 presolar grains 42 detect gravitational waves 42 silicon monoxide 42 particle detectors 42 planets atmospheres 42 ecliptic plane 42 fist widths 42 silicate crystals 42 Orion nebula 42 Observatory telescope 42 Corot 9b 42 novae 42 MG J# +# 42 Cassini Regio 42 anthropic 42 Earths orbiting 42 plagioclase 42 Clyde Tombaugh discovered 42 Jupiter icy moons 42 Pleiades cluster 42 # Apophis 42 antimatter particles 42 GZK cutoff 42 infrared wavelengths 42 occultations 42 QQ# 42 Jupiter Icy Moons 42 Lutetia 42 interstellar dust particles 42 mesosphere 42 biosignatures 42 permanently shadowed craters 42 Saturn Jupiter Uranus 42 Churyumov Gerasimenko 42 neutrino mass 42 lunar craters 42 Lyman alpha 42 protostar 42 Syrtis Major 42 MN4 42 sterile neutrino 42 smallest exoplanets 42 Pluto planetary status 42 unmanned probes 42 Castorocauda 42 moons Io 42 helium nuclei 42 Planets 42 planet TrES 42 optical telescopes 42 Venus Neptune Uranus 42 gamma ray emitting 42 tetrahedrons 42 strangelets 42 Astrophysical Institute 42 extragalactic 42 Uranus Jupiter 42 SNR #-#.# 41 prominences 41 #P/Churyumov-Gerasimenko 41 interacting galaxies 41 electron ion 41 nebulas 41 supernova explosions 41 Higgs Boson particle 41 ellipse 41 Hanny Voorwerp 41 radial velocity 41 astrobiologists 41 EPOXI 41 dwarf spheroidal 41 blue straggler 41 southern supercontinent 41 PSR B# 41 celestial sphere 41 distant galaxy 41 found circling Gliese 41 Gerhard Schwehm 41 zodiacal light 41 neutral mass spectrometer 41 Gondolo 41 carbon cenospheres 41 NASA rover Spirit 41 Earthlike planet 41 puny Pluto 41 Solar Terrestrial Relations 41 intrinsic brightness 41 Olympus Mons 41 Ophiuchus 41 hydrogen atoms 41 constellations 41 quantum mechanics 41 Gamma ray bursts 41 metallicity 41 Valles Marineris 41 Saturnian moons 41 Asteroid Belt 41 relativistic particles 41 ExoMars 41 RY Sagittarii 41 X ray observatories 41 Alex Filippenko 41 nuclei 41 Orionids 41 lanthanides 41 planet HD#b 41 HL Tau 41 Saturn moon 41 moons circling 41 Hyakutake 41 gravitational tides 41 superstring theory 41 alkali metal 41 interstellar cloud 41 habitability 41 interferometers 41 Great Orion Nebula 41 constellation Cassiopeia 41 micrometeoroids 41 earthshine 41 Arsia Mons 41 galactic halo 41 IRC +# 41 Kepler 9b 41 HARPS instrument 41 supercontinents 41 Sasselov 41 Deep Impact eXtended Investigation 41 Hawking radiation 41 volcanic moon Io 41 ellipsoids 41 Nikku Madhusudhan 41 primitive organisms 41 Europa Orbiter 41 Monoceros 41 Theoretical physicists 41 constellation Lacerta 41 ultraluminous galaxy 41 moon Io 41 reflection nebula 41 YORP effect 41 JDEM 41 strangelet 41 gravitational interaction 41 Kepler Telescope 41 constellation Aquarius 41 observational astronomy 41 Trapezium 41 moon Mab 41 spherical objects 41 proto galaxies 41 microquasar 41 elliptical shapes 41 origins spectrograph 41 Tunguska asteroid 41 polarimetry 41 gory spectacles 41 Ontario Lacus 41 pions 41 innermost planet 41 constellation Perseus 41 planet WASP #b 41 Orion Nebula 41 Magellanic Clouds 41 CMB radiation 41 GeV 41 zodiacal dust 41 Type 1a supernovae 41 Jonathan Lunine 41 extrasolar worlds 41 Noctilucent clouds 41 solar minima 41 Quarks 41 prebiotic soup 41 prebiotic molecules 41 orbital eccentricity 41 galaxy formation 41 animal phyla 41 theoretical particle 41 blue supergiant 41 RRATs 41 planet Uranus 41 interstellar clouds 41 Astronomers 41 Libra constellation Vogt 41 Sauropods 41 galaxies nebulae 41 Newtonian gravity 41 Exoplanet 41 axion 41 interferometry 41 jarosite 41 faraway galaxies 41 AVAs 41 Coma Berenices 41 Rayleigh scattering 41 general relativity 41 Mars Atmosphere 41 Archaea 41 giant elliptical galaxies 41 tier Saffir Simpson 41 whiz harmlessly 41 chondritic 41 PSR J# 41 planetary astronomer 41 Saturn Uranus 41 NASA twin rovers 41 unaided eye 41 sunspot 41 auroral emissions 41 Small Magellanic Cloud 41 asteroids WISE 41 chemical abundances 41 HIRES spectrometer 41 circumstellar 41 Chilean Atacama Desert 40 Wide Angle Search 40 SMBH 40 mysterious uncharted 40 UCO Lick 40 cosmic microwave background 40 sodium atoms 40 elongated orbit 40 SIM PlanetQuest 40 Epimetheus 40 heliocentric 40 Chicxulub 40 IRAS #-# 40 active galactic nucleus 40 gravitational tugs 40 nucleon 40 Geminids 40 heavily cratered 40 Saturn Enceladus 40 ultracold atoms 40 Type Ia 40 astrophysical 40 bodied Na'vi 40 waning crescent moon 40 Geza Gyuk 40 Earthly contamination 40 supercluster 40 cometary impacts 40 planetary science 40 Cosmologists 40 Hubble Ultra 40 gravitational lens 40 rocky extrasolar planet 40 Apophis asteroid 40 X ray telescopes 40 singular noun 40 Darwinius masillae 40 coronal mass ejections CMEs 40 Laser Interferometer Space 40 Type Ia supernova 40 UDFy # 40 cosmological models 40 electrons behave 40 geocentric 40 Herbig Ae Be 40 constellation Carina 40 galactic nuclei 40 periodic dimming 40 infrared telescopes 40 Solar Orbiter 40 planetary scientist 40 Eta Carinae 40 globular cluster M# 40 quasicrystal 40 galactic cores 40 Virgo Cluster 40 quanta 40 HD# [005] 40 SIRTF 40 Bruce Jakosky 40 Hurdia 40 Einstein theories 40 gaseous envelope 40 astrophysical objects 40 Canis Major 40 antineutrinos 40 Supersymmetry 40 worm Caenorhabditis elegans 40 Quantum mechanics 40 Titan smoggy 40 Rossby waves 40 Achernar 40 comet 40 ESA Herschel 40 subduction zones 40 Ceres Jupiter 40 APXS 40 Yinghuo 1 40 Thirty Meter Telescope 40 morphological traits common 40 redshifted 40 smallest exoplanet ever 40 Elliptical galaxies 40 particles WIMPs 40 V# Mon 40 homochirality 40 shorter wavelengths 40 spacecraft orbiting 40 Butterfly Nebula 40 Charon Pluto 40 ionise 40 cosmogony 40 Chankillo 40 Giovanni Cassini 40 circumstellar disk 40 protoplanetary 40 Einstein theory 40 electron neutrinos 40 spacecraft flyby 40 Climate Experiment GRACE 40 Hipparchus 40 Viking orbiters 40 Mini TES 40 supernova remnant 40 Flyby spacecraft 40 Schrodinger equation 40 Seyfert galaxies 40 conjunctions 40 constellation Auriga 40 quantum physicists 40 olivine crystals 40 Higgs boson particle 40 Ranging spacecraft 40 Tauri Sb 40 orbitals 40 trimers 40 silicate minerals 40 Edwin Hubble 40 asteroids Vesta 40 equilateral triangles 40 perigee moon 40 mineral olivine 40 lavas 40 post perovskite 40 theoretical physicists 40 constellation Sagittarius 40 weakly interacting 40 optical wavelengths 40 gravitational pulls 40 orbited Jupiter 40 ValCom client 40 celestial mechanics 40 cnidarians 40 atomic particles 40 Delta Cephei 40 asteroid collisions 40 tidal tails 40 Bose Einstein condensation 40 Cosmic Background Explorer 40 OMEGA instrument 40 SN #E 40 village Deerlick 40 Thermal Emission Spectrometer 40 radial velocity technique 40 comets meteors 40 partial differential equations 40 optical interferometry 40 Mars northern latitudes 40 Baptistina 40 Einstein relativity theory 40 cometary material 40 called lobate scarps 40 astrophysics 40 highly elliptical orbits 40 magnetospheric