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(Click for frequent words.) 56 COROT 56 CoRoT 56 exoplanet 56 Planck 56 extrasolar planets 55 XMM Newton 55 radial velocity 54 Kepler spacecraft 54 NASA Kepler 54 extrasolar planet 53 SIRTF 52 exoplanets 52 planets 52 James Fanson 51 Cancri e 50 Kepler Mission 50 astronomical observations 50 HD#b 50 CoRoT 9b 50 HD #b [002] 50 Fomalhaut b 50 planets orbiting 50 NASA Kepler spacecraft 50 HAT P 50 transiting planets 49 transiting planet 49 Gliese #d 49 spectroscopic observations 49 Konacki 49 Gliese #c 49 transiting exoplanets 49 TrES 49 GALEX 49 Kuiper Belt object 48 Gamma ray burst 48 Earthlike planets 48 Kepler telescope 48 CoRoT satellite 48 Saturn Cassini 48 exoplanets orbiting 48 planets orbiting distant 48 WMAP 48 Gliese #g 48 Hubble observations 48 Wolszczan 47 Galaxy Evolution 47 ESA Rosetta 47 Planck satellite 47 ESA Herschel 47 mu Arae 47 planet TrES 47 SNfactory 47 brown dwarf 47 Corot 7b 47 LORRI 47 WASP #b 47 VIRTIS 47 exo planet 47 THEMIS 47 rocky planets 47 exoplanetary 47 quasar 47 rocky extrasolar planet 47 NASA Kepler telescope 47 smallest exoplanet 47 telescope 47 Solar Orbiter 47 planets orbiting sun 47 AB Aurigae 47 astronomical objects 47 habitable worlds 47 OGLE 47 planet orbiting 47 HiRISE 47 microlensing 47 GRB #B 47 AKARI 46 exoplanet orbiting 46 astronomers 46 Higgs particle 46 occultations 46 infrared observatory 46 Spacewatch 46 exo planets 46 CoRoT 7b 46 Mamajek 46 PSR J# 46 MINOS 46 radial velocity method 46 Cassini 46 extrasolar 46 Sasselov 46 P/# A2 46 radial velocity technique 46 Giovanni Cassini 46 planetary Transits 46 radial velocity measurements 46 Kuiper Belt Objects 46 Wilkinson Microwave Anisotropy Probe 46 Kepler #b 46 Convection Rotation 46 Spitzer Space Telescope 46 quasars 46 Milky Way 46 JWST 46 OGLE TR #b 46 asteroseismology 46 X ray observatory 46 Microlensing 46 habitable planets 46 Cosmic Evolution 46 Fermi telescope 46 potentially habitable planets 46 Proxima Centauri 46 Marchis 46 COBE 46 planetary astronomy 46 brown dwarfs 46 SIM PlanetQuest 46 Herschel Space 46 Corot 9b 46 Kuiper belt objects 46 Kepler Space Telescope 46 Huygens 46 planets circling 45 Christophe Lovis 45 Epsilon Eridani 45 telescopic observations 45 OGLE TR 45 optical telescopes 45 moons orbiting 45 CRISM 45 GRBs 45 astrometry 45 Hubble 45 Omega Centauri 45 comet McNaught 45 SMOS 45 Planetary Transits 45 extrasolar planetary systems 45 Orion Nebula 45 spectroscopic 45 Kepler observatory 45 super Earths 45 distant galaxy 45 distant quasar 45 Gerard Kuiper 45 GLAST 45 infrared astronomy 45 Herschel 45 extragalactic 45 NASA Wilkinson Microwave 45 Gliese #e 45 distant supernovae 45 gamma ray bursts 45 terrestrial planets 44 RHESSI 44 ESA Integral 44 potentially habitable 44 Pluto Eris 44 Cassini Huygens 44 distant quasars 44 Maciej Konacki 44 Comet Hartley 2 44 EPOXI 44 RXTE 44 Cygnus Lyra region 44 planet Gliese #g 44 Comet Machholz 44 Machholz 44 gravitational microlensing 44 J# +# [002] 44 Fermi LAT 44 Corot 44 GJ #b [001] 44 RRATs 44 millisecond pulsar 44 Explorer WISE 44 Ulysses spacecraft 44 supernovae 44 Zeta Ophiuchi 44 pulsars 44 Lutetia 44 Seth Shostak 44 Upsilon Andromedae 44 BLG #Lb 44 Earthlike planet 44 Gerhard Schwehm 44 Terrestrial Planet Finder TPF 44 distant galaxy clusters 44 Beta Pictoris b 44 Huygens mission 44 XMM Newton satellite 44 gamma ray observatory 44 Exoplanet 44 Herschel telescope 44 gaseous planet 44 WFC3 44 redshift 44 astrophysical 44 Gehrels 44 Stassun 44 Fermi Gamma ray 44 infrared telescope 44 planets Kepler 44 photometry 44 Comet Hale Bopp 44 X ray binary 44 SDSS II 44 SN #A 44 planetary transits 43 Gutoski 43 planet transits 43 globular clusters 43 Nasa Kepler 43 extrasolar planetary 43 celestial object 43 X ray telescopes 43 Andrea Accomazzo 43 Hubble Telescope 43 Fermi Large 43 planemos 43 ESA XMM Newton 43 Dominique Cassini 43 Neptune Uranus 43 asteroid Vesta 43 TrES 4 43 Kepler Telescope 43 astrometric 43 Optical Gravitational Lensing Experiment 43 Extrasolar Planet Search 43 infrared interferometry 43 NASA Cosmic Background 43 distant galaxies 43 Comet Lulin 43 comet 43 UDFy # 43 Rainer Klement 43 GJ#b 43 microlensing events 43 Adam Riess 43 Epsilon Aurigae 43 AU Mic 43 starburst galaxies 43 APXS 43 SDSS 43 Infrared Astronomical Satellite 43 Solar System 43 NEOWISE 43 Observatory STEREO 43 Nasa Jet Propulsion 43 eclipsing binary 43 Lunar Reconnaissance Orbiter LRO 43 Higgs boson particle 43 gravitational wave 43 planets orbiting stars 43 Mars 43 Pluto Charon 43 Area Telescope LAT 43 AAVSO 43 German astronomer Johannes 43 SN #gy 43 LCROSS 43 Delta Cephei 43 habitable planet 43 Edwin Hubble 43 Astrophysical 43 Sedna 43 sunlike stars 42 Churyumov Gerasimenko 42 Comet Holmes 42 Webb Telescope 42 Grillmair 42 orbited Jupiter 42 Kepler discoveries 42 PASADENA Calif. Astronomers 42 Orbiter LRO 42 astrobiologists 42 supersymmetric particles 42 Geoff Marcy 42 Gaensler 42 Solar Terrestrial Relations 42 Stephane Udry 42 KBOs 42 moon Charon 42 NASA Cassini 42 Enceladus 42 Gliese 42 extrasolar planets orbiting 42 habitable zone 42 Exoplanets 42 inch Samuel Oschin 42 Johannes Kepler 42 Eta Carinae 42 Super Earths 42 celestial objects 42 Adaptive Optics 42 Higgs bosons 42 Uranus Neptune 42 inch refractor 42 Alpha Centauri 42 axion 42 sextillion stars 42 MN4 42 inch refractor telescope 42 astronomer 42 Lowell Observatory 42 spectroscopically 42 Extrasolar Planets 42 ESA Huygens 42 inhabitable planets 42 Comet Halley 42 trans Neptunian objects 42 Pegasi 42 MAVEN 42 SETI Institute 42 Binzel 42 Tarter 42 KH #D 42 Kepler 9c 42 Comet Hartley 42 Cepheid variables 42 DISR 42 Trojan asteroids 42 Theodor Hänsch 42 Carnegie Observatories 42 NICMOS 42 Herschel Space Telescope 42 gamma ray burst 42 Andrea Ghez 42 SkyScout 42 exosolar planets 42 hot Jupiters 42 Planetary Science Institute 42 Milky Way galaxy 42 ESO VLT 42 NASA Orbiting Carbon 42 Chodas 42 UCO Lick 42 Upsilon Andromedae b 42 Tycho Brahe 42 HiRISE camera aboard 42 planet HD #b 42 Keck Observatory 42 Wilkinson Microwave Probe 42 photometer 42 type Ia supernovae 42 Borucki 42 WIMPs 42 Caltech astronomer 42 Comet #P/Churyumov-Gerasimenko 42 Gravitational lensing 42 Higgs Boson 42 Great Observatories 42 JDEM 42 Kepler 9b 42 Io Europa Ganymede 42 Triangulum Galaxy 42 Hale Bopp 42 magnetar 42 telescopes 42 Cassini ultraviolet 42 A'Hearn 42 Saturn moons 42 sized planets orbiting 42 Supernova Cosmology Project 42 analyst Fabrizio Croce 42 planet orbits 41 ultraviolet wavelengths 41 spectrograph 41 neutron spectrometer 41 Io Europa 41 supernova 41 Astrophysics Cambridge Mass. 41 NASA Cassini spacecraft 41 globular cluster 41 Cosmic Microwave Background 41 UVOT 41 Type Ia supernovae 41 universal gravitation 41 Galilean satellites 41 planetary 41 Thiemens 41 Rosetta orbiter 41 pulsar 41 Evolution Explorer 41 Beta Pictoris 41 ESA Planck 41 Wolfgang Brandner 41 Pluto 41 HD #b [001] 41 Kuiper belt object 41 cosmological distances 41 Saturn rings 41 axions 41 DZero 41 infrared telescopes 41 radial velocities 41 HD# [002] 41 Viking landers 41 Fomalhaut 41 Frank Bertoldi 41 Planck spacecraft 41 exoplanets planets 41 Thirty Meter Telescope 41 planetary nebulae 41 Infrared Array Camera 41 moon Mab 41 asteroid Steins 41 Orion nebula 41 comets orbiting 41 Kounaves 41 CfA 41 Dalcanton 41 Mössbauer 41 NASA Goddard 41 Space Telescope 41 Nasa spacecraft 41 Observatory astronomer 41 astronomer Johannes Kepler 41 circumstellar disks 41 neutrino 41 Steward Observatory 41 interplanetary spacecraft 41 SPICAM 41 R#a# 41 MESSENGER 41 Astronomers 41 orbiting telescope 41 orbiting Mars 41 Cancri 41 Franck Marchis 41 SOHO spacecraft 41 GRB # 41 Stéphane Udry 41 Orbiter MRO 41 largest moon Charon 41 #P/Holmes 41 Heliophysics 41 Earth asteroids 41 Mauna Kea Hawaii 41 Swift Tuttle 41 ESA Mars 41 UC Observatories Lick 41 solar corona 41 Hakan Svedhem 41 X ray wavelengths 41 comet Wild 41 Rosetta spacecraft 41 Herschel Planck 41 ESA SMART 41 Mojzsis 41 Schawinski 41 Astronomer 41 galactic mergers 41 Anisotropy Probe 41 Infrared Astronomy 41 MG J# +# 41 millisecond pulsars 41 asteroid 41 Mandushev 41 icy moons 41 THEMIS satellites 41 Wide Angle Search 41 BP Piscium 41 Hipparcos 41 Mars CRISM 41 Milky Way Galaxy 41 Jenniskens 41 Edmund Halley 41 Galilean moons 41 Pieter van Dokkum 41 Paranal Chile 41 Neukum 41 Anisotropy Probe WMAP 41 ESA Cluster 41 Mars Reconnaissance Orbiter MRO 41 detect gravitational waves 41 PlanetQuest 41 WMAP satellite 41 faint galaxies 41 ESO telescope 41 astrophysicists 41 WFPC2 41 NASA Far Ultraviolet 41 asteroids orbiting 41 ROSAT 41 comet nucleus 41 Tombaugh 41 adaptive optics 41 airglow 41 amateur skywatchers 41 Peter Jenniskens 41 Von Frese 40 coronagraph 40 Laser Interferometer Gravitational Wave 40 Spectrograph 40 Red Rectangle 40 IceCube 40 Halley Comet 40 John Callas rover 40 orbiting gamma ray 40 Scott Heinauer 40 inch refracting telescope 40 exoplanet hunter 40 Diviner 40 Komossa 40 NanoSail D 40 sunlike star 40 CloudSat 40 Earthscope 40 LOFAR 40 XTE J# 40 Comet McNaught 40 NASA Stratospheric Observatory 40 Astrophysicists 40 stellar occultations 40 Steins asteroid 40 Hyakutake 40 gravitational lenses 40 Galileo spacecraft 40 UKIRT 40 optical interferometry 40 constellation Cygnus 40 Quaoar 40 NASA Fermi Gamma 40 galaxies 40 Lattis 40 Mimas 40 Mini TES 40 comets 40 hypervelocity stars 40 NASA LCROSS 40 Natalie Batalha 40 NASA STEREO 40 Near Infrared Camera 40 Hipparchus 40 BepiColombo 40 cometary 40 NASA Mars Odyssey 40 NuSTAR 40 COROT 7b 40 CALIPSO 40 AGNs 40 Elenin 40 demote Pluto 40 Voyager spacecraft 40 Crab Nebula 40 UB# [003] 40 God Particle 40 Bill Borucki Kepler 40 noctilucent clouds 40 Edmond Halley 40 Supersymmetry 40 Brahe 40 Marscher 40 Einstein theories 40 Astrophysical Institute 40 EPOCh 40 Fornax 40 Space Infrared Telescope 40 Higgs 40 Observatoire de Paris 40 Strohmayer 40 astrobiology 40 Cassini flyby 40 Asteroid 40 BP Psc 40 galaxy cluster 40 Nikku Madhusudhan 40 filamentary structure 40 Mercury flyby 40 constellation Aquarius 40 Kuiper Belt objects 40 galaxy NGC 40 Project Ozma 40 Pluto demotion 40 Global Surveyor 40 Carey Lisse 40 WISE telescope 40 Chandra X ray 40 GRB #A 40 spaceborne 40 GQ Lupi 40 Very Large Telescope 40 Andromeda galaxy 40 Terrestrial Planet Finder 40 Siding Spring 40 amateur astronomers 40 supernova explosion 40 G#.# +#.# 40 MicroFUN 40 Udry 40 LIGO 40 ULIRGs 40 Lick Observatory 40 ESO telescopes 40 Manchester Jodrell Bank 40 Agol 40 ultraviolet spectrometer 40 astrobiological 40 intrinsic brightness 40 Compton Gamma Ray 40 reionization 40 orbits 40 Earthshine 40 SCIAMACHY 40 Emily Lakdawalla 40 Oscillations 40 Kuiper Belt Object 40 stellar seismology 40 Jennifer Heldmann 40 Mars Reconnaissance Orbiter 40 astronomer Clyde Tombaugh 40 Earths orbiting 40 Eridani 40 imaging spectrometer 40 Rainer Blatt 40 Composite Infrared Spectrometer 40 Cassini Huygens spacecraft 40 galaxy 40 Kailash Sahu 40 Multi Object Spectrometer 40 Saturn outermost moon 40 nebulae 40 HARPS spectrograph attached 40 Opportunity rover 40 X ray Observatory 40 COROT satellite 40 #gy 40 LRO 40 observatory 39 Lunar Prospector 39 red supergiant 39 spacecraft flyby 39 radiotelescope 39 George Djorgovski 39 Andromeda Galaxy 39 Filippenko 39 Flyby spacecraft 39 Stardust NExT 39 Ring Nebula 39 spiral galaxies 39 Clyde Tombaugh discovered 39 SPIRE instrument 39 Sromovsky 39 lunar craters 39 WM Keck Observatory 39 interferometer 39 GRAIL 39 Mutel 39 Samuel Oschin Telescope 39 asteroid belt 39 submillimetre 39 Gehrz 39 PSR B# +# 39 Kuiper Airborne 39 dust enshrouded 39 Dupke 39 Explorer GALEX 39 Keck telescope 39 protoplanet 39 Lyman alpha 39 cluster NGC 39 VB #b 39 Martin Gutoski 39 orbiting Hubble telescope 39 Squyres Cornell 39 William Borucki 39 Huchra 39 ESO 39 constellation Carina 39 spectrometer 39 infrared spectra 39 Pleiades cluster 39 Jupiter moons 39 analyst Tero Weckroth 39 SuperWASP 39 planet Uranus 39 cosmic microwave radiation 39 Higgs boson 39 supersymmetry 39 infrared wavelengths 39 La Silla Chile 39 spatially resolved 39 Tarduno 39 orbiting Hubble Space Telescope 39 Burst Alert 39 GOCE 39 Storrie Lombardi 39 NEAs 39 lightest exoplanet 39 Sara Seager 39 stellar occultation 39 celestial observations 39 planets astronomers 39 HIP #b 39 Smithsonian astronomer 39 de Pater 39 binary asteroid 39 microquasar 39 boson 39 Bottke 39 E ELT 39 nightglow 39 neutrino detectors 39 IBEX spacecraft 39 dwarf galaxy 39 ultraviolet spectrograph 39 Hubble telescope 39 Solar TErrestrial RElations Observatory 39 exobiology 39 Voorwerp 39 amateur astronomer 39 asteroids 39 Interior Laboratory GRAIL 39 HRSC 39 high redshift galaxies 39 spiral galaxy Messier 39 observable universe 39 Spaceguard 39 UA Steward Observatory 39 water hypothesizes Stephane 39 Doradus 39 Paul Chodas 39 NASA Chandra 39 Hubble Ultra 39 earthshine 39 Palomar Observatory 39 astronomy 39 highly elliptical orbits 39 orbiting observatory 39 NICMOS observations 39 ESO astronomer 39 gamma ray telescope 39 Crab Pulsar 39 NOAO 39 Virgo cluster 39 eclipsing binaries 39 composite infrared spectrometer 39 Saturnian system 39 Charles Beichman 39 astronomer Tycho Brahe 39 fainter objects 39 Solar Dynamics Observatory 39 SUSY 39 VLBA 39 spectra 39 maser 39 MEarth 39 LCLS 39 Toutatis 39 z ~ 39 Pillinger 39 Deep Impact eXtended Investigation 39 magnetospheric 39 planets Uranus 39 gamma ray flares 39 Kuiper Belt 39 Lunokhod 39 active galactic nuclei 39 cosmic microwave background 39 spectroscopy 39 Mossbauer 39 redshift z = 39 Europa Orbiter 39 Viking Lander 39 GA6 39 elliptical orbits 39 NEOs 39 Saturn moon 39 moonquakes 39 Keck Interferometer 39 Maria Zuber 39 Cassini spacecraft 39 elusive Higgs boson 39 KamLAND 39 astrophysical phenomena 39 Mössbauer spectrometer 39 Mars Orbiter 39 EPOXI mission 39 NASA EPOXI mission 39 Earthlike 39 Spaceguard Survey 39 Don Gurnett 39 INTEGRAL satellite 39 HARPS 39 SWIFT J#.# 39 NASA rovers 39 orbiting 39 planet gravitational tug 39 novae 39 elliptical galaxies 39 STIS 39 Cygnus X 39 globular cluster M# 39 National Optical Astronomy 39 HL Tau 39 X ray binaries 39 # Apophis 39 Epoxi 39 arcminutes 39 asteroid Eros 39 Geminids 39 Mars Surveyor 39 Mario Livio 39 plutoids 39 interstellar dust 39 redshifts 39 neutrino oscillation 39 LCROSS spacecraft 39 blazars 39 Southern Observatory ESO 39 neutralino 39 NASA Gamma ray 39 interstellar dust particles 39 Michael Zolensky 39 supernovas 39 Pan STARRS 38 Christiaan Huygens 38 Comet NEAT 38 R Coronae Borealis 38 Gamma ray 38 Harlow Shapley 38 moons Phobos 38 NASAs 38 Boethin 38 outermost planet 38 Jean Luc Margot 38 Diviner instrument 38 HIRES spectrometer 38 DEEP2 38 Gravitational Physics 38 detect gamma rays 38 YU# 38 Collider Detector 38 Larry Soderblom 38 S/# P2 38 Quadrantids 38 Jonathan Lunine 38 earthlike planets 38 Submillimeter Array 38 Eris 38 NASA THEMIS 38 KIPAC 38 Orbiting Carbon Observatory 38 diffuse aurora 38 spectrometers 38 Tarantula Nebula 38 Gravity Probe B 38 Krimigis 38 X ray afterglow 38 PSR J# +# 38 RS Ophiuchi 38 Lunine 38 Cepheids 38 periodic dimming 38 Cassini radar 38 supernova SN 38 NASA MESSENGER 38 Helix nebula 38 innermost planet 38 Lagrange 38 HUDF 38 Europa Ganymede 38 gravitationally bound 38 constellation Ursa Major 38 gravitationally lensed 38 CoRoT #b 38 flyby 38 HiRISE camera 38 planetary missions 38 Halley comet 38 dirty snowballs 38 Rathnasree 38 Cosmic Background Explorer COBE 38 OSIRIS 38 Chandra Observatory 38 Earths 38 Telescope 38 Hubble astronomer 38 MiniBooNE 38 Copernicus 38 Drake Equation 38 ESO Very Large Telescope 38 Space Interferometry Mission 38 star Beta Pictoris 38 Dikpati 38 Pierre Simon Laplace 38 Percival Lowell 38 Nousek 38 Trumpler 38 spiral galaxy NGC 38 MARSIS radar 38 X ray telescope 38 Alex Filippenko 38 Laser Interferometer Space 38 protoplanetary disks 38 Astrophysics 38 DIXI 38 Ellery Hale 38 moon Ganymede 38 Neil deGrasse Tyson 38 Jill Tarter 38 SkyCenter 38 Hinode 38 X ray emission 38 Ralph McNutt 38 IRC +# 38 ChemCam 38 Mars Global Surveyor 38 electron neutrinos 38 dwarf planet 38 Peony nebula star 38 geoneutrinos 38 NASA Great Observatories 38 Hubble Space Telescope HST 38 constellation Lyra 38 ESA comet chaser 38 Avi Loeb 38 carbonaceous chondrites 38 EPOXI spacecraft 38 cosmologists 38 Dauphas 38 Ferenc Krausz 38 meter Keck telescopes 38 luminous galaxies 38 Martian meteorites 38 Rosetta 38 moons 38 ephemeris features 38 Cosmic Background Explorer 38 gamma ray spectrometer 38 Werthimer 38 moons circling 38 Alfvén waves 38 Spitzer infrared telescope 38 Meteoritics 38 X ray spectrometer 38 Galaxies 38 GOSAT 38 constellation Hercules 38 Halzen 38 Anthony Remijan 38 neutrinos 38 Betelgeuse 38 Maunder minimum 38 Jupiter Ganymede 38 highly elliptical orbit 38 Pluto dwarf 38 comet chaser 38 sterile neutrino 38 interferometric observations 38 laser altimeter 38 ULP cepheids 38 orbiting observatories 38 lobate scarps 38 STEREO mission 38 Saturn Enceladus 38 Mars Odyssey 38 Allan Sandage 38 SSRL 38 Flandrau Science Center 38 Mercury magnetosphere 38 Sagittarius Window Eclipsing 38 brightest comet 38 XMM Newton X ray 38 Ken Edgett 38 flyby spacecraft 38 Enceladus flybys 38 NASA Jet Propulsion Laboratory 38 habitable zones 38 intracluster 38 HARPS instrument 38 Eric Becklin 38 Plate Boundary 38 GJ #b [002] 38 MIT Haystack Observatory 38 topographic measurements 38 OSIRIS REx 38 INTEGRAL 38 COBE satellite 38 SETI 38 unaided eye 38 universe 38 Bryan Gaensler 38 Stratospheric Observatory 38 Segert 38 Space Telescopes 38 Stadermann 38 Charon 38 martian meteorites 38 EGRET 38 Heliospheric Observatory SOHO 38 Hubble Near Infrared 38 Astrosat 38 bolometers 38 Climate Experiment GRACE 38 substorms