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(Click for frequent words.) 68 IAU 54 dwarf planet 53 Small Body Nomenclature 52 demoted Pluto 51 Union IAU 51 planethood 51 demote Pluto 51 plutoids 50 trans Neptunian objects 49 plutoid 49 Pluto Eris 48 Owen Gingerich 48 dwarf planets 48 astronomers 47 Pluto 46 Gliese #g 45 Pluto demotion 45 Corot 7b 45 NASA Kepler 45 asteroid Ceres 45 Astronomy 45 UB# [003] 44 Catherine Cesarsky 44 Richard Binzel 44 asteroid 43 Pluto Charon 43 Pluto dwarf 43 GJ #b [001] 43 Architects UIA 43 Kuiper Belt object 43 nicknamed Xena 42 largest moon Charon 42 Meteoritical Society 42 Makemake 42 S/# P2 42 planets 42 Athletics Federations IAAF 42 Astronomers 42 orbiting telescope 42 Pluto planetary status 41 Kepler #b 41 Omega Centauri 41 planetary Transits 41 Planetary Society 41 MErcury Surface Space ENvironment 41 SIM PlanetQuest 41 Southern Observatory ESO 41 Astrophysicists 41 Apophis 41 Tom Burbine 41 Pan STARRS 41 astronomer Johannes Kepler 40 Dwarf Planet 40 rocky extrasolar planet 40 Gliese #c 40 Planck satellite 40 Lunar Exploration 40 UNESCO 40 ESA Herschel 40 astronomer 40 Cancri e 40 AAVSO 40 MN4 40 COROT 40 Kuiper belt objects 40 planetary science 40 OGLE TR #b 40 retrograde orbits 40 Smithsonian Astrophysical Observatory 40 BepiColombo 40 mu Arae 40 Pluto moon Charon 40 exoplanets 40 Thirty Meter Telescope 40 Uranus Neptune 40 RQ# 40 Astronomical Society AAS 40 Kepler Mission 40 Astrophysical Institute 39 Athletic Federations 39 IAU definition 39 #P/Holmes 39 Avishay Gal Yam 39 planetary astronomer 39 decadal survey 39 asteroids 39 demoting Pluto 39 Kaguya probe 39 Museums ICOM 39 Spaceguard 39 Science ICSU 39 Kepler discoveries 39 Astronautics IAA 39 Ed Weiler NASA 39 Astronomical 39 Torino Scale 39 Unesco 39 celestial object 39 Planetary Science 39 Europa Orbiter 39 UKIRT 39 astronomy 39 planets comets 39 Science Studies CESS 39 Astrobiology 39 orbiting Hubble Space Telescope 39 Fritz Zwicky 39 Cassini Huygens spacecraft 39 astrophysicists 39 dwarf planets exist 39 smallest exoplanet 39 planetary astronomy 39 Athletics Federations 39 SDSS 38 journal Meteoritics 38 Galilean satellites 38 ESA Rosetta 38 astronomer Clyde Tombaugh 38 Exoplanets 38 Anisotropy Probe WMAP 38 Observatory telescope 38 exosolar planets 38 telescopic observations 38 celestial objects 38 CoRoT 9b 38 Natalie Batalha 38 Harvard Smithsonian Astrophysical 38 CfA 38 Comet #P 38 CoRoT 7b 38 planemos 38 NASA Wilkinson Microwave 38 BLG #Lb 38 exoplanetary 38 Kepler Telescope 38 Kuiper Belt Object 38 occulted 38 Sigurd Hofmann 38 Terrestrial Planet Finder 38 Maria Zuber 38 Solar Orbiter 38 Beta Pictoris 38 Crystallography 38 Kuiper Belt 38 Earth asteroids 38 XMM Newton 38 TW Hydrae 38 detect gravitational waves 38 Hipparchus 38 Mars Atmosphere 38 astrophysicist 38 ICANN Governmental 38 Cosmic Microwave Background 38 Observatory STEREO 38 Pleiades 38 COSPAR 38 planetary 38 WGIG 38 celestial 38 Clyde Tombaugh 38 ICOMOS 38 supermoon 38 Cultural Organisation Unesco 38 orbiting Kepler telescope 38 observatory 38 Galileo telescope 38 Fomalhaut b 38 Hubble telescope 38 Lulin Observatory 38 Astrophysical 38 Cosmic Background Explorer 38 Quadrantids 37 # Apophis 37 Keck Observatory 37 International Astronautical Federation 37 CoRoT 37 spiral nebulae 37 extrasolar planets 37 gaseous planet 37 Saturn Uranus Neptune 37 moon Mab 37 Astrophysics 37 Gerard Kuiper 37 S/# S1 37 orbiting 37 P/# A2 37 extrasolar planet 37 exo planets 37 NASA MESSENGER 37 IEEE Standards 37 Churyumov Gerasimenko 37 Nicolaus Copernicus 37 Geza Gyuk 37 Neil deGrasse Tyson 37 Solar System 37 Solar TErrestrial RElations Observatory 37 Chilean Atacama Desert 37 astronomer Nicolaus Copernicus 37 Kuiper belt object 37 STScI 37 Mercury flyby 37 HD #b [001] 37 Toutatis 37 Gemini Observatory 37 exoplanets orbiting 37 astronomical objects 37 outer planets 37 TrES 4 37 Gerhard Schwehm 37 Pluto planethood 37 HD#b 37 planet Uranus 37 Chess Federation FIDE 37 Solar Terrestrial Relations 37 celestial bodies 37 QQ# 37 Upsilon Andromedae b 37 Geographic Names 37 interplanetary spacecraft 37 planetoid 36 Phobos Grunt 36 orbits 36 colliding galaxies 36 microlensing 36 Royal Astronomical Society 36 puny Pluto 36 Kuiper Belt Objects 36 AU Mic 36 Space Telescope Science 36 Comet Holmes 36 Explorer WISE 36 YU# 36 CoRoT #b 36 Clyde Tombaugh discovered 36 Sasselov 36 ESA Planck 36 smallest exoplanets 36 Cassini Equinox 36 Venus Neptune Uranus 36 inhabitable planets 36 Hubble 36 Zoological Nomenclature 36 Kepler 9c 36 astronomer Galileo Galilei 36 GRB #B 36 Giovanni Cassini 36 Laser Interferometer Gravitational Wave 36 planet orbiting 36 Eris 36 extrasolar 36 exoplanet 36 WASP #b 36 NOAO 36 Neil DeGrasse Tyson 36 Spacewatch 36 retrograde orbit 36 trans Neptunian 36 planets orbiting distant 36 Franck Marchis 36 exo planet 36 Neptune Jupiter 36 Hubble servicing 36 SEDS 36 Exoplanet 36 JDEM 36 moon Charon 36 Gliese #e 36 NEOs 36 moons Phobos 36 planet orbits 36 asteroids orbiting 36 Hubble Space Telescope 36 LCROSS Observation Campaign 36 Astro E2 36 radial velocity 36 Astronomer 36 UCO Lick 36 Konacki 36 exobiology 36 Telecommunication Union 35 United Nations 35 distant galaxy 35 IYA# 35 Charon Pluto 35 Planetary 35 astrobiology 35 Asteroid 35 WM Keck Observatory 35 exoplanets planets 35 Ecclesia Dei commission 35 NASA 35 Apophis asteroid 35 Comet Halley 35 PASADENA Calif. Astronomers 35 Beta Pictoris b 35 transiting planets 35 Solar Dynamics Observatory 35 Hubble Telescope 35 cosmic phenomena 35 Astronautical Science 35 infrared observatory 35 Fermi telescope 35 Galilean moons 35 Sara Seager 35 Observatory astronomer 35 Xavier Bonfils 35 Neptune Uranus 35 planetoids 35 Planetology 35 Upsilon Andromedae 35 MAVEN 35 Wilkinson Microwave Anisotropy Probe 35 planets Uranus 35 Tombaugh 35 exoplanet hunter 35 UN Educational Scientific 35 constellation Perseus 35 Saturn Cassini 35 Astrobiology Science 35 moons circling 35 cosmos 35 orbited Jupiter 35 GJ#b 35 Astrophysical Journal 35 ESO VLT 35 planetary scientist 35 transiting exoplanet 35 Anisotropy Probe 35 Jupiter moons 35 Nasa 35 Triangulum 35 planets orbits 35 Nibiru 35 outermost planet 35 Mercury Uranus 35 Saturn Enceladus 35 Kuiper belt 35 Duari 35 extrasolar planets orbiting 35 Natural Resources IUCN 35 orbiting Chandra 35 Space Infrared Telescope 35 GALEX 35 Astrophysics MOA 35 protoplanet 35 ESO telescopes 35 UNOOSA 35 NASA STEREO 35 galaxy cluster 35 habitable planet 35 millisecond pulsar 35 Mars Uranus 35 twin STEREO spacecraft 35 COROT 7b 35 Wolfgang Brandner 35 Nasa Kepler 35 NAOJ 35 NASA Cassini 35 Uranus 35 HARPS spectrograph attached 35 Fermi Telescope 35 astrophysics 35 NASA Chandra 35 Ms. Fréchette 35 Trojan asteroids 35 ICSU 35 Io Europa 35 oblong orbit overlaps 35 Voorwerp 35 comets meteors 35 Extrasolar Planets 35 Astronomical Observatory 35 VLBI 35 SDSS II 35 DRAO 35 Earth Asteroid 35 Jill Tarter 34 Uranus Jupiter 34 UN 34 gamma ray burst 34 Spaceguard Survey 34 Astroparticle Physics 34 Theoretical Physics ICTP 34 Fraknoi 34 magnetar 34 Carnegie Observatories 34 Syun Ichi Akasofu 34 constellation Ophiuchus 34 New7Wonders Foundation 34 OIE 34 Pierre Simon Laplace 34 Mars Jupiter Uranus 34 Sports Federations GAISF 34 Pluto Kuiper Belt 34 brown dwarf 34 Dominique Cassini 34 noctilucent clouds 34 BepiColombo mission 34 Mars Phobos 34 inch Samuel Oschin 34 exoplanets planets outside 34 gravitational tides 34 occultations 34 Herschel Space 34 Planetary Transits 34 Nikku Madhusudhan 34 OSIRIS REx 34 IAAF 34 Francophonie OIF 34 MicroFUN 34 RY Sagittarii 34 journal Icarus 34 Kepler 34 Comet Machholz 34 Cassini imaging 34 PlanetQuest 34 InterAcademy Council 34 Nasa Jet Propulsion 34 Epsilon Eridani 34 heliocentric theory 34 Planck spacecraft 34 HD #b [002] 34 innermost planet 34 New Horizons spacecraft 34 Quaoar 34 Dan Buhl Planetarium 34 planets orbiting sun 34 journal Astronomy 34 distant quasars 34 IceCube 34 Kuiper Belt objects 34 super Earths 34 barred spiral galaxy 34 Hubble astronomer 34 cosmological 34 Electronics Engineers IEEE 34 Mars Uranus Neptune 34 Educators SPACE 34 ESA SMART 34 cosmic 34 telescope 34 administrator Sean O'Keefe 34 Sedna 34 COROT exo 3b 34 GLAST telescope 34 Cosmic Evolution 34 Voyager spacecraft 34 Xena 34 SPACE.com 34 gravitationally bound 34 Earthlike planets 34 GA6 34 astronomical observatory 34 Higgs Boson 34 Cassini flyby 34 Alex Filippenko 34 S/# [001] 34 Extrasolar Planet Search 34 Amateur astronomers 34 Saturn rings 34 astrophysical phenomena 34 Inuit goddess 34 NASAs 34 Stephan Quintet 34 moons orbiting 34 Galaxy Evolution 34 Ophiuchus 34 CoRoT satellite 34 MUSES C 34 infrared telescope 34 Maria Zakharova 34 Adaptive Optics 34 greatest insect emergences 34 VB #b 34 transiting planet 34 icy moons 34 Maunder minimum 34 orbiting observatory 34 IUCN 34 Jupiter icy moons 34 Football Associations 34 Spaceweather.com 34 Saturn Uranus 34 NASA Kepler telescope 34 KBOs 34 VIRTIS 34 Amateur Athletic 34 Table Tennis Federation 34 spacetime 34 highly elliptical orbit 34 celestial phenomenon 34 Tripartite Mechanism 34 Theoretical Astrophysics 33 COBE 33 planets Kepler 33 Frank Bertoldi 33 Palomar Observatory 33 Mandushev 33 Gaia Hypothesis 33 Optical Gravitational Lensing Experiment 33 Emily Lakdawalla 33 Corot 9b 33 ESO Paranal Observatory 33 HARPS spectrograph 33 interstellar dust 33 Observatoire de Paris 33 Goverdhan Mehta 33 NASA Cassini spacecraft 33 Cassini Huygens Mission 33 Astrobiology Institute 33 comets asteroids 33 NEAs 33 moon 33 occultation 33 icy comets 33 dustier stormier atmosphere 33 cosmic cannibal 33 moons 33 Manchester Jodrell Bank 33 GQ Lupi 33 spacecraft Cassini 33 Oscillations 33 physicists 33 gamma ray bursts 33 sized planets orbiting 33 Phaethon 33 Martian rover 33 UNESCO Koïchiro Matsuura 33 ExoMars rover 33 Planets 33 Astrophysics Cambridge Mass. 33 relativity theory 33 extrasolar planetary systems 33 La Silla observatory 33 constellation Pegasus 33 observable universe 33 binary quasar 33 RHESSI 33 Pasachoff 33 Ambassador Marcello Spatafora 33 planetary nebulas 33 Fundamental Physics 33 GeoForschungsZentrum Potsdam 33 Geodesy 33 cosmological observations 33 Geoscience 33 HiRISE 33 astronomical observatories 33 comets orbiting 33 Himiko 33 equatorial bulge 33 Venus Uranus 33 astrophysical 33 Theodor Hänsch 33 cosmological distances 33 particle physics 33 Astronomy IYA 33 astronaut Eugene Cernan 33 UDFy # 33 Nasa Ames 33 Amateur Astronomers 33 Einstein relativity theory 33 Kepler 9b 33 Gliese 33 Wide Angle Search 33 Popular Astronomy 33 heliocentric 33 Nasa spacecraft 33 astrometry 33 planet transits 33 Galileo Joint Undertaking 33 PASADENA Calif. NASA 33 Oort cloud 33 SA Geographical Names 33 distant quasar 33 NASA Stardust spacecraft 33 W3C 33 galaxy M# [001] 33 boson 33 Japan NAOJ 33 Hipparcos 33 reaffirmed Pluto planetary 33 ESA Integral 33 Fermi Gamma ray 33 jovian 33 Mars rover 33 #P/Churyumov-Gerasimenko 33 Keck telescope 33 constellation Lyra 33 Kepler observatory 33 Habitable Worlds 33 Mario Livio 33 asteroids comets 33 galactic 33 Physics IOP 33 Jupiter Icy Moons 33 comets 33 Astronomical Society 33 Tycho Brahe 33 celestial mechanics 33 ICANN 33 Shri Kulkarni 33 super perigee moon 33 Henrik Svensmark 33 Saul Perlmutter 33 radial velocity technique 33 Cepheid variables 33 particle astrophysics 33 ESO La Silla 33 gravitational perturbations 33 EPOXI 33 Long Baseline Interferometry 33 general relativity 33 Comet Elenin 33 Lowell Observatory 33 Near Infrared Camera 33 Svedhem 33 Filippenko 33 habitable worlds 33 Geosciences 33 brightest supernova 33 Halley comet 33 Foing 33 ESA XMM Newton 33 Maciej Konacki 33 Renewable Energy Agency IRENA 32 Cosmologists 32 amateur skywatchers 32 gravitational microlensing 32 Gravitational waves 32 telescope atop Mauna 32 amateur astronomer 32 comet chaser 32 Astrophysical Journal Letters 32 Epsilon Aurigae 32 journal Monthly Notices 32 Einstein theories 32 Evolution Explorer 32 cosmological constant 32 Venus Climate Orbiter 32 Great Observatories Origins 32 Harlow Shapley 32 Euroscience 32 cosmology 32 Frederic Pont 32 Array ALMA 32 Jupiter Ganymede 32 Gliese #d 32 Space Telescope 32 Amateur Athletics 32 NASA Kepler spacecraft 32 Cosmic Origins 32 Aryabhatta 32 Martian meteorites 32 Karl Menten 32 moonlet 32 galaxy M# [002] 32 Space Physics 32 aurorae 32 Cassini 32 Robotic Lunar Exploration 32 Fornax cluster 32 Nature IUCN 32 elliptical orbit 32 Planetary Sciences 32 Pan STARRS PS1 telescope 32 planets orbiting stars 32 Microlensing Observations 32 BLG #L 32 origins spectrograph 32 orbital resonance 32 Physics Applied Physics 32 particle physicists 32 Boris Shustov 32 American Astronautical Society 32 Jupiter Uranus 32 Enceladus flybys 32 sixtieth session 32 ITU 32 celestial sphere 32 comet 32 Extrasolar 32 Follett Pillars 32 Intergovernmental Oceanographic Commission 32 Particle Physics 32 Comet Hartley 2 32 colliding asteroids 32 Union ITU 32 Condensed Matter 32 National Optical Astronomy 32 quasars 32 NASA Great Observatories 32 dwarf galaxy 32 IYA 32 Earthlike 32 planets orbiting 32 outermost planets 32 asteroid Steins 32 Deep Impact eXtended Investigation 32 constellation Aquarius 32 J# +# [002] 32 Jupiter Saturn Uranus 32 WD5 32 Saturnian moon Titan 32 EURid 32 supernova 32 Algol 32 NASA Infrared Telescope 32 seismology 32 Pleiades star 32 perigee 32 lunar explorer 32 Nationally Recognized Statistical 32 Caltech astronomer 32 Tunguska asteroid 32 geomicrobiology studying particles 32 Habitable 32 Comet Lulin 32 planetary sciences 32 Administrator Kemal Dervis 32 Pisgah Astronomical Research 32 X ray telescopes 32 WISE spacecraft 32 Vinnerborg 32 Haumea 32 Comet McNaught 32 filamentary structure 32 Observatories 32 Moon Mineralogy Mapper M3 32 Ecma 32 Meteoritics 32 HD# [002] 32 moon Io 32 Edmond Halley 32 Cosmology 32 CERD 32 Earthlike planet 32 extragalactic 32 NuSTAR 32 XO 3b 32 SN #gy 32 La Silla Observatory 32 gamma ray observatory 32 luminous galaxies 32 asteroseismology 32 Rainer Klement 32 Human Spaceflight 32 observational astronomy 32 ESO telescope 32 Cygnus Lyra region 32 Epimetheus 32 Generic Names 32 assumed planets circling 32 asterism 32 constellation Carina 32 attosecond 32 Delta Cephei 32 sunlike star 32 Triangulum Galaxy 32 National Astronomical Observatory 32 intracluster 32 astronomical observations 32 Assigned Names 32 nightglow 32 anthropic principle 32 Project Ozma 32 elliptical orbits 32 Cassini Orbiter 32 Lars Hernquist 32 exoplanet orbiting 32 Jupiter Saturn 32 ringed planet 32 Kuchner 32 Goldilocks planet 32 BP Psc 31 star Proxima Centauri 31 Galileo spacecraft 31 HIP #b 31 Jodrell Bank Observatory 31 Henize #-# 31 Jupiter moon Io 31 Pekka Tarjanne 31 dinosaurs coexisted 31 baryon 31 Skating Federation 31 infrared astronomy 31 Extraterrestrial Intelligence Institute 31 document A/C.#/#/L.# [002] 31 Gliese #G 31 Eurid 31 heliocentric model 31 GRB # 31 Gemini telescopes 31 GJ #b [002] 31 Mauna Kea Hawaii 31 aphelion 31 Hyakutake 31 SuperWASP 31 star Gliese 31 planet HD#b 31 Dysnomia 31 WMO 31 circumstellar disks 31 Earth radii 31 astronaut Rusty Schweickart 31 journal Geophysical Research 31 Telescope 31 Reentry Debris Studies 31 Solar Observatory 31 Cassini Huygens 31 Higher Secondary Education 31 Keck Telescopes 31 Jupiter gravitational pull 31 comet Lulin 31 cosmologist 31 Cancri 31 orbiting Cassini spacecraft 31 Teachers Education NCTE 31 NASA Astrobiology 31 distant galaxies 31 Environmental Programme UNEP 31 Planck telescope 31 proto cluster 31 Steward Observatory 31 lunar perigee 31 dimming starlight 31 spectroscopic observations 31 UNESCO Intergovernmental 31 Microlensing Follow Up 31 lunar orbiter Chang'e 31 Nanakshahi calendar 31 FIDE 31 abiogenesis 31 Seismology 31 observatories 31 FDA Psychopharmacologic Drugs 31 globular cluster 31 supernova explosion 31 Jaca Spain 31 Comet Hartley 31 Lutetia 31 Planetary Science Institute 31 Oort Cloud 31 magnetars 31 ICGEB 31 Cepheids 31 Huygens 31 asteroids Ceres 31 UNFCCC secretariat 31 WADA 31 Martian moons Phobos 31 Cassini Imaging 31 Geminids 31 XMM Newton X ray 31 Wolszczan 31 perihelion 31 WISE telescope 31 Gemini Telescope 31 galaxies 31 Uranian 31 amateur astronomers 31 hydrostatic equilibrium 31 Venusian 31 Geophysics 31 Saturn moon 31 geoparks 31 AB Aurigae 31 comet nucleus 31 ccNSO 31 VLBA 31 Neils Bohr 31 DOSB 31 Infrared Pathfinder Satellite 31 rover Opportunity 31 LOFAR 31 MMT Observatory 31 UNCCD 31 Cedaw 31 Extra Terrestrial Intelligence 31 Epoxi 31 Cerro Pachón 31 lensing galaxy 31 Virgo Cluster 31 Extraterrestrial Life 31 reionization 31 theoretical physicist 31 Raelian Movement 31 Numbers ICANN 31 IOC Co ordination 31 MPIfR 31 Lick Observatory 31 planets moons 31 THEMIS 31 INTEGRAL satellite 31 planetary orbits 31 CADTM 31 Saturn outermost moon 31 Edwin Hubble 31 Higgs particle 31 Robert Jedicke 31 High Angular Resolution 31 spacecraft flyby 31 orbiting Mars 31 God Particle 31 Venetia Burney 31 Standards OASIS 31 Ray Jayawardhana 31 Descent Imager Spectral Radiometer 31 WIPO 31 distant supernovae 31 Icomos 31 Ecumenical Patriarch Vartholomaios 31 Keck Telescope 31 astrobiological 31 protoplanetary disks 31 Automobile FIA 31 Ed Weiler 31 moon gravitational pull 31 Quantum Optics 31 Sagittarius dwarf galaxy 31 SN #A 31 KIPAC 31 Pluto planetary 31 orbiting Saturn 31 WMAP satellite 31 twin Voyager spacecraft 31 Community Process JCP 31 Supreme Court collegium 31 Science Popularisation Association 31 Slooh 31 critically endangered 31 Planetary Science Conference 31 planets astronomers 31 Keck telescopes 31 TNOs 31 planets circling stars 31 manned lunar landing 31 gravitational waves 31 robotic spacecraft 31 Skating Union 31 OGLE TR 31 GRB #A 31 gravitational lensing 31 GRBs 31 SIRTF 31 observatory telescope 31 OIV 31 Fran Bagenal 31 Muchachos Observatory 31 Jupiter flyby 31 Venetia Phair 31 SN#A 31 Mount Stromlo Observatory 31 Speleology 31 X ray observatory 31 eclipsing binary 31 Terrestrial Magnetism 31 planet 31 periodic dimming 31 asteroid Itokawa 31 Quadrantid meteor shower 31 Science Fiction 30 Tia Viering spokeswoman 30 Astronomical Units 30 Itokawa asteroid 30 heliocentrism 30 Philippe Bouchet 30 asteroid Vesta 30 Maitreya 30 DIVERSITAS 30 La Francophonie 30 exerts gravitational pull 30 Standardisation ISO 30 LSST 30 Interreligious Consultations 30 plutoed 30 Linguistic Diversity 30 elongated orbit 30 WCC Decade 30 OOSA 30 Yelena Isinbayeva 30 supernovae 30 Rugby Football 30 HM Cancri 30 radiotelescope 30 ALH# 30 particle colliders 30 hot Jupiters 30 Proxima Centauri 30 Carinthian Slovenians NSKS 30 theoretical physicist Stephen Hawking 30 galactic clusters 30 Galileo Galilei #-# 30 sunlike stars 30 Machholz 30 Astrophysicist 30 Genetic Engineering Approval 30 GAID 30 Orionids