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(Click for frequent words.) 75 CoRoT 71 planetary Transits 69 Convection Rotation 68 XMM Newton 68 CoRoT satellite 68 ESO VLT 67 Planetary Transits 67 Cassini Huygens 67 Churyumov Gerasimenko 67 VIRTIS 67 Kepler Mission 66 radial velocity 66 GALEX 66 HAT P 66 Fermi telescope 66 BepiColombo 65 planets orbiting distant 65 Lunar Reconnaissance Orbiter LRO 65 Planck satellite 65 spectroscopic observations 65 X ray observatory 65 SMOS 65 SIRTF 64 HD# [002] 64 Earthlike planets 64 Hubble Space Telescope HST 64 exoplanets orbiting 64 ESA SMART 64 detect gravitational waves 64 Orbiter LRO 64 Kepler spacecraft 64 smallest exoplanet 64 ESA Rosetta 64 exoplanetary 64 Fomalhaut b 64 HD#b 64 AKARI 63 ESA Cluster 63 extrasolar planets 63 exoplanets 63 microlensing events 63 NASA Kepler 63 TrES 63 COROT satellite 63 SOHO spacecraft 63 CoRoT 9b 63 Galileo spacecraft 63 Gliese #c 63 Keck Interferometer 63 extrasolar planet 63 NASA Wilkinson Microwave 63 microlensing 63 exosolar planets 63 extrasolar 63 TanDEM X 63 HARPS spectrograph attached 62 Ulysses spacecraft 62 Comet Hartley 2 62 GOCE 62 Galaxy Evolution 62 Comet Hartley 62 Toutatis 62 Relations Observatory STEREO 62 Comet Lulin 62 astrometry 62 ESO telescopes 62 WFC3 62 MARSIS 62 transiting planets 62 orbiting observatories 62 orbiting gamma ray 62 solar corona 62 Rosetta orbiter 62 Observatory STEREO 62 Planck spacecraft 62 ESA XMM Newton 62 Hubble observations 61 astronomers 61 ESA Herschel 61 WASP #b 61 spacecraft Cassini 61 SDSS II 61 fainter objects 61 planet TrES 61 Very Large Telescope 61 exoplanet orbiting 61 VLTI 61 Comet Halley 61 Herschel Space 61 mu Arae 61 gravitational microlensing 61 #P/Churyumov-Gerasimenko 61 exo planets 61 Solar Orbiter 61 NuSTAR 61 ESO PR 61 THEMIS 61 infrared telescopes 61 Giovanni Cassini 61 infrared observatory 61 Ocean Salinity SMOS 61 gamma ray observatory 61 HD #b [002] 61 Cryosat 61 OGLE TR 61 NASA Kepler spacecraft 61 Cancri e 61 Huygens mission 61 Beta Pictoris b 61 BLG #Lb 61 X ray spectrometer 61 Titan flyby 61 comet chaser 61 Phobos Grunt 61 Pluto Charon 61 SIM PlanetQuest 61 MetOp 61 astrometric 61 noctilucent clouds 60 Antenna LISA 60 JDEM 60 infrared telescope 60 Gliese #e 60 Corot 7b 60 CALIPSO 60 ESA Planck 60 NASA STEREO 60 Gliese #d 60 occultations 60 Mercury flyby 60 highly elliptical orbit 60 extrasolar planets orbiting 60 Cassini Huygens spacecraft 60 Lunokhod 60 OGLE 60 millisecond pulsars 60 gravitational wave 60 Omega Centauri 60 J# +# [002] 60 UKIRT 60 Enceladus flybys 60 Galilean moons 60 transiting planet 60 planet orbiting 60 gaseous planet 60 EarthCARE 60 planets orbiting sun 60 orbiting Hubble Space Telescope 60 Cassini flyby 60 NASA Cassini spacecraft 60 ray Space Telescope 60 COROT 7b 60 Delta Cephei 60 Solar TErrestrial RElations Observatory 60 Epsilon Eridani 60 distant quasar 60 NASA THEMIS 60 ESA Integral 60 ESO Very Large Telescope 60 GOCE satellite 60 extrasolar planetary systems 60 Optical Gravitational Lensing Experiment 60 Kepler 9c 60 Higgs particle 60 Epsilon Aurigae 60 LADEE 60 HiRISE image 60 Laser Interferometer Space 60 gravitational lenses 60 ESO telescope 60 Comet #P/Churyumov-Gerasimenko 60 planet Uranus 60 X ray telescopes 60 radio occultation 60 RXTE 60 Cloud Aerosol Lidar 59 Planck telescope 59 e MERLIN 59 HM Cancri 59 Corot 9b 59 XMM Newton satellite 59 IBEX spacecraft 59 Orbiter MRO 59 JWST 59 NASA Kepler telescope 59 NASA Cassini 59 TerraSAR X 59 STEREO spacecraft 59 polarimetry 59 NEOSSat 59 Rosetta spacecraft 59 Climate Experiment GRACE 59 THEMIS satellites 59 Upsilon Andromedae 59 Hinode spacecraft 59 NASA Stratospheric Observatory 59 Near Infrared Camera 59 Kepler Telescope 59 Multi Object Spectrometer 59 Wolszczan 59 astronomical objects 59 comet #P/Churyumov-Gerasimenko 59 TrES 4 59 KBOs 59 SAR Lupe 59 NICMOS 59 asteroid Vesta 59 Cassini 59 WMAP satellite 59 Kuiper belt objects 59 Laser Interferometer Gravitational Wave 59 Muchachos Observatory 59 photometry 59 Herschel Space Telescope 59 GJ #b [001] 59 Anisotropy Probe WMAP 59 Cepheid variables 59 NASA Far Ultraviolet 59 planets circling 59 HiRISE 59 Zeta Ophiuchi 59 Array ALMA 59 innermost planet 59 Saturn Cassini 59 particle detector 59 Andromeda Galaxy 59 planetary nebulae 59 eclipsing binary 59 OGLE TR #b 59 Hinode 59 Evolution Explorer 59 orbiting Saturn 59 Saturn rings 59 Nasa Kepler 59 brown dwarfs 59 exoplanet 59 Mössbauer 59 Southern Observatory ESO 59 Heterodyne Instrument 59 Proba 2 59 interplanetary spacecraft 59 ROSAT 59 comet nucleus 59 rocky extrasolar planet 59 Orionids 58 distant supernovae 58 retrograde orbit 58 telescopic observations 58 airglow 58 SINFONI 58 Hipparcos 58 Spitzer Space Telescope 58 Jupiter Ganymede 58 Kepler 9b 58 EPOCh 58 Interior Laboratory GRAIL 58 millisecond pulsar 58 Terrestrial Planet Finder 58 Comet Churyumov Gerasimenko 58 planets orbiting 58 AB Aurigae 58 LOFAR 58 Ocean Salinity 58 Giove B 58 Cosmic Microwave Background 58 SCISAT 58 Helios 2B 58 Lutetia 58 Kepler #b 58 ExoMars 58 ringed planet 58 Nasa spacecraft 58 Voyager spacecraft 58 Cosmic Evolution 58 Cassini spacecraft 58 Comet Tempel 1 58 SuperWASP 58 PSR J# 58 distant galaxies 58 E ELT 58 C1XS 58 KamLAND 58 Telescope LSST 58 GRBs 58 Observatory SDO 58 Corot 58 arcminutes 58 NASA EPOXI mission 58 O OREOS 58 supersymmetric particles 58 auroral 58 GRB #B 58 radial velocity method 58 CloudSat 58 Saturnian moon Titan 58 Sensing Satellite LCROSS 58 CoRoT 7b 58 NASA Great Observatories 58 Cancri 58 telescope 58 CRISM 58 Mars Reconnaissance Orbiter MRO 58 Io Europa 58 Mpc 58 spectroscopically 58 Keck telescope 58 RHESSI 58 Huygens 58 Kuiper Belt Object 58 MESSENGER 58 Comet Machholz 58 coronagraph 58 Herschel Planck 58 Galileo satellites 58 Planck 58 Jacques Laskar 58 ExoMars rover 58 Chandrayan 57 Explorer WISE 57 exoplanets planets 57 Exoplanet 57 astrophysical phenomena 57 D CIXS 57 Galilean satellites 57 Cygnus Lyra region 57 Mini SAR 57 High Accuracy Radial 57 asteroid Lutetia 57 transiting exoplanets 57 Infrared Pathfinder Satellite 57 Anisotropy Probe 57 planemos 57 gamma ray burst 57 Jovian moons 57 CryoSat 57 LCROSS mission 57 Kepler observatory 57 WMAP 57 Wilkinson Microwave Anisotropy Probe 57 THEMIS mission 57 EPOXI 57 MARSIS radar 57 Solar Dynamics Observatory 57 X ray binary 57 Fornax cluster 57 star Gliese 57 constellation Virgo 57 GRB # 57 cosmic microwave background 57 constellation Cassiopeia 57 arcsec 57 Space Agency 57 EPOXI mission 57 outer planets 57 binary quasar 57 WISE infrared 57 unaided eye 57 LISA Pathfinder 57 stellar occultations 57 Arches Cluster 57 habitable planets 57 Cygnus X 57 YU# 57 GJ#b 57 Orbiting Carbon Observatory 57 distant galaxy 57 Spectrograph 57 Kuiper Belt object 57 Kuiper Belt Objects 57 red supergiant 57 NASA Cosmic Background 57 Higgs bosons 57 MINOS 57 GLAST 57 Herschel telescope 57 Orion Nebula 57 EPOXI spacecraft 57 La Silla Chile 57 orbiting 57 Gliese #g 57 celestial object 57 Wilkinson Microwave Probe 57 Mars Reconnaissance Orbiter 57 Cepheids 57 ESA ASI 57 APXS 57 rocky planets 57 Space Telescope 57 spacecraft 57 Milky Way Galaxy 57 exoplanet hunter 57 NASAs 57 Fermi Gamma ray 57 Crab Nebula 57 Cerro Paranal Chile 57 Mimas 57 planets 57 redshift 57 earthshine 57 blazar 57 AU Mic 57 Grenoble Observatory 57 Mars Orbiter 57 Observatoire de Paris 57 Saturnian system 57 Chandrayaan 57 infrared astronomy 57 ExoMars mission 57 Yinghuo 1 57 VISTA telescope 57 Deep Impact eXtended Investigation 57 orbiting telescope 57 Alpha Particle 57 DZero 57 Cosmic Background Explorer 57 gamma ray bursts 57 LCROSS 57 orbited Jupiter 57 moons orbiting Saturn 57 muon neutrinos 57 Surveys ACS 57 Mauna Kea Hawaii 57 Interstellar Boundary Explorer 57 photometer 57 ESA ERS 56 Antennae Galaxies 56 enters lunar orbit 56 comet McNaught 56 ESA Huygens probe 56 HARPS instrument 56 adaptive optics 56 galactic cosmic rays 56 Extrasolar planets 56 constellation Aquarius 56 COSMO SkyMed 56 Wide Angle Search 56 DIXI 56 moon Mab 56 spiral galaxy NGC 56 icy moons 56 SN #A 56 Astrophysics MOA 56 imaging spectrometer 56 interferometer 56 Saturn moon 56 stellar occultation 56 constellations Cygnus 56 planets Kepler 56 brown dwarf 56 NASA ESA Hubble 56 VLBI 56 radial velocity technique 56 OSIRIS REx 56 Proxima Centauri 56 habitable worlds 56 Gravity Probe B 56 planets orbits 56 optical telescopes 56 Krimigis 56 sized planets orbiting 56 AGNs 56 Envisat 56 occulted 56 Astrosat 56 ESA Huygens 56 RRATs 56 LORRI 56 Oceansat 2 56 Kepler 56 RQ# 56 HRSC 56 visit http:/saturn.jpl.nasa.gov 56 NIRSpec 56 OSIRIS 56 terrestrial planets 56 Solar Terrestrial Relations 56 GRAIL 56 NASA Stardust spacecraft 56 onboard Chandrayaan 56 lunar perigee 56 celestial sphere 56 Gliese 56 STEREO mission 56 Lulin 56 Andromeda galaxy 56 magnetar 56 Moon Mineralogy Mapper M3 56 luminous galaxies 56 comet Wild 56 Venusian atmosphere 56 periodic dimming 56 Infrared Astronomy 56 HARPS N 56 comet 56 planet orbits 56 exo planet 56 NASA LCROSS 56 galaxy cluster 56 Descent Imager Spectral Radiometer 56 astronomical telescope 56 Elenin 56 ultraviolet wavelengths 56 axions 56 astrophysicists 56 astronomical observations 56 SIRAL 56 neutral mass spectrometer 56 Great Observatories 56 Ultraviolet Imaging Spectrograph 56 geoneutrinos 56 arcseconds 56 BP Psc 56 Fermi Telescope 56 Heliospheric Observatory SOHO 56 Titan flybys 56 inhabitable planets 56 HARPS spectrograph 56 asteroseismology 56 Jupiter moons 56 HESS telescopes 56 gravitationally bound 56 NEAs 56 occultation 56 ESO La Silla 56 constellation Centaurus 56 UVOT 56 supergiant star 56 La Silla Observatory 56 Main Injector Neutrino 56 Pegasi 56 Borexino 56 starburst galaxies 56 super Earths 56 DISR 56 orbiting Mars 56 perihelion 56 ESA Mars 56 MErcury Surface Space ENvironment 56 Itokawa 56 Lunar Reconnaissance Orbiter 56 exoplanetary systems 56 JIMO 56 Metop 56 Samuel Oschin Telescope 56 gravitational lensing 55 Viking Lander 55 cosmic ray 55 STEREO 55 aurorae 55 P/# A2 55 Triangulum Galaxy 55 orbiting observatory 55 moons orbiting 55 Mars orbiting spacecraft 55 LAGEOS 55 gravitational waves 55 Kepler telescope 55 filamentary structure 55 asteroid Itokawa 55 Earthlike planet 55 Mossbauer 55 tau neutrinos 55 jovian 55 Mars Odyssey spacecraft 55 orbits 55 Gerhard Schwehm 55 ASPERA 55 Rosetta comet chaser 55 celestial objects 55 supernovae 55 Ring Nebula 55 agency CNES 55 Cosmologists 55 Astrophysicists 55 Hubble Ultra 55 substorms 55 globular cluster 55 Lunar Crater 55 planetary missions 55 La Silla observatory 55 Comet McNaught 55 Infrared Thermal Imaging Spectrometer 55 orbiter lander 55 MN4 55 Carina constellation 55 Eta Aquarid meteor shower 55 Cosmic Microwave Background CMB 55 Gamma ray burst 55 GIOVE B 55 reionization 55 SCIAMACHY 55 substorm 55 Quaoar 55 Epoxi 55 Jenniskens 55 Crab Pulsar 55 Pierre Simon Laplace 55 Hubble Telescope 55 galaxy M# [002] 55 LIGO 55 interstellar dust grains 55 planets moons 55 quasars 55 submillimetre 55 GJ #b [002] 55 Exoplanets 55 JAXA 55 SUSY 55 comet Lulin 55 SMOS Soil Moisture 55 Foing 55 Comet Holmes 55 Proba 55 New Horizons spacecraft 55 Manchester Jodrell Bank 55 DEIMOS 55 Extrasolar Planets 55 WFPC2 55 ESO Paranal Observatory 55 Faint Object 55 SPICAM 55 RS Ophiuchi 55 WIMPs 55 mesosphere 55 planet Gliese #c 55 distant quasars 55 Magellanic Clouds 55 electron neutrinos 55 spectrographs 55 spectroscopic measurements 55 Express orbiter 55 Large Magellanic Cloud 55 slender crescent 55 polar orbiting satellites 55 NASA Lunar Reconnaissance 55 journal Meteoritics 55 Apophis asteroid 55 cosmic rays 55 AAVSO 55 Hubble orbits 55 CARTOSAT 55 Sedna 55 SDSS telescope 55 THEMIS Images 55 NASA Solar Terrestrial 55 Deep Impact Extended 55 X ray emission 55 ICESat 55 Leonids 55 magnetars 55 Solar System 55 Fermi LAT 55 visible wavelengths 55 moonlet 55 retrograde orbits 55 Stratospheric Observatory 55 Saturn moon Enceladus 55 retroreflector 55 Kepler Space Telescope 55 Kiruna Sweden 55 HL Tau 55 High Resolution Imaging 55 subsurface ocean 55 Atacama Large Millimeter submillimeter 55 Comet 9P/Tempel 1 55 moon Io 55 optical interferometry 55 Lunar Crater Observation 55 XMM Newton X ray 55 UDFy # 55 Planetary Camera 2 55 INTEGRAL 55 flyby spacecraft 55 Ranging spacecraft 55 Quadrantids 55 detect gamma rays 55 polarimetric 55 spacecraft flyby 54 Kailash Sahu 54 lunar surface 54 cosmological distances 54 ENVISAT 54 trans Neptunian objects 54 asteroid Steins 54 moon Charon 54 pulsar 54 mission Chandrayaan 54 Active Galactic Nuclei 54 lunar orbits 54 Bug Nebula 54 Hubble Constant 54 Composite Infrared Spectrometer 54 Astrophysical 54 thin crescent 54 WISE spacecraft 54 Macroscale Interactions during 54 NASA twin STEREO 54 Mars Pathfinder lander 54 HIRES spectrometer 54 Voorwerp 54 MAVEN 54 Keck telescopes 54 IceCube 54 distant galaxy clusters 54 orbital resonance 54 Earth magnetotail 54 Stardust spacecraft 54 waning gibbous 54 Interferometer 54 Sasselov 54 neutron spectrometer 54 Saturnian moon 54 optical wavelengths 54 globular clusters 54 Geminids 54 Helix Nebula 54 Comet Hale Bopp 54 radiotelescope 54 plutoids 54 orbital rendezvous 54 earthlike planets 54 Area Telescope LAT 54 SNe Ia 54 Chandra Observatory 54 UCO Lick 54 Mandushev 54 Asteroid Itokawa 54 Infrared Astronomical Satellite 54 X ray wavelengths 54 Quadrantid meteor shower 54 galaxy M# [001] 54 geoid 54 Spatiales 54 Global Surveyor 54 HARPS 54 flyby 54 Microlensing Observations 54 Cosmic Origins Spectrograph 54 protoplanetary disk 54 Super Earths 54 Lunar Prospector 54 radial velocities 54 Pan STARRS 54 NASA Lunar Crater 54 infrared interferometry 54 boson 54 GLAST telescope 54 ESA Envisat 54 Eta Carinae 54 Paranal 54 Lunar Orbiter Laser Altimeter 54 constellation Cygnus 54 SHARAD 54 telescopes 54 spacecraft orbiting 54 scatterometer 54 muon neutrino 54 situ measurements 54 Oscillations 54 twin STEREO spacecraft 54 nanosatellite 54 ULIRGs 54 Lunar CRater Observation 54 transiting exoplanet 54 Jupiter magnetosphere 54 WM Keck Observatory 54 gravitational lens 54 2MASS 54 moons circling 54 X ray observatories 54 Mars Pathfinder 54 Peter Jenniskens 54 Saturnian moons 54 spectroscopic 54 optical telescope 54 Astronomers 54 Beta Pictoris 54 LHC experiments 54 constellation Hercules 54 Imaging Spectrometer 54 Mars orbiter 54 cometary 54 Hubble 54 particle smasher 54 Space Infrared Telescope 54 CoRoT #b 54 Phobos Grunt mission 54 Diviner 54 infrared spectrograph 54 cosmological observations 54 planets orbiting stars 54 mineralogical composition 54 reflection nebula 54 spaceborne 54 CryoSat satellite 54 Mars Color Imager 54 astronomer Edmond Halley 54 WISE telescope 54 Betelgeuse 54 Hubble telescope 54 Flyby spacecraft 54 Phobos 54 microquasar 54 Cerro Paranal 54 Bok globules 54 lensing galaxy 54 Mars CRISM 54 comets asteroids 54 Cat Paw Nebula 54 Yarkovsky effect 54 zodiacal light 54 intrinsic brightness 54 Henize #-# 54 particle detectors 54 Rosette Nebula 54 neutrino detectors 54 National d' Etudes 54 QQ# 54 equatorial orbit 54 Gravitational lensing 54 submillimeter wavelengths 54 moon Titan 54 Jovian moon 54 Mars Atmosphere 54 Resourcesat 2 54 Lunar Orbiter 54 Tarantula Nebula 54 protostar 54 extrasolar planetary 53 GQ Lupi 53 SMM J# 53 galaxy NGC 53 Venus Climate Orbiter 53 Investigation DIXI 53 journal Astronomy 53 Kuiper Belt objects 53 Meteosat 53 HiRISE camera aboard 53 exosphere 53 Interferometric 53 Extrasolar Planet Observation 53 Infrared Array Camera 53 starburst galaxy 53 SN #gy 53 Upsilon Andromedae b 53 THEMIS spacecraft 53 binary asteroid 53 attosecond 53 Kaguya 53 Advanced LIGO 53 comet Churyumov Gerasimenko 53 Lunar Exploration 53 cluster NGC 53 Pluto Eris 53 interferometric 53 Paranal Observatory 53 Thermal Emission Spectrometer 53 LRO 53 lunar crust 53 Orbiter spacecraft 53 ejecta 53 orbiting Hubble telescope 53 Bernard Foing 53 Martian meteorites 53 Alycia Weinberger 53 AMIE camera 53 quasar 53 elongated orbits 53 nightglow 53 Virgo cluster 53 nanosatellites 53 G#.# +#.# 53 sunlike star 53 redshifts 53 Velocity Planet Searcher 53 galactic mergers 53 SSETI Express 53 ADM Aeolus 53 Earths orbiting 53 Microlensing 53 MESSENGER spacecraft 53 Europa Orbiter 53 Neutral Mass Spectrometer 53 S/# P2 53 Virgo Cluster 53 tau neutrino 53 Igor Chekalin 53 Planck observatory 53 Spaceguard Survey 53 VIMOS 53 red supergiants 53 Flyby 53 polar orbiting 53 HiRISE camera 53 lunar orbit 53 circular orbit 53 eclipsing binaries 53 Keck Observatory 53 interferometers 53 ESA GOCE 53 planets Uranus 53 Ranging MESSENGER spacecraft 53 supernova explosion 53 probe Chang'e 53 Orionid 53 geo stationary orbit 53 constellation Perseus 53 cosmic cannibal 53 Submillimeter Array 53 KAGUYA 53 XO 3b 53 NASA MESSENGER 53 Cosmic Origins Spectrograph COS 53 Mars landers 53 NASA ICESat 53 Observatory telescope 53 protoplanet 53 Chandrayaan II 53 X ray Observatory 53 Foton M3 53 X ray binaries 53 http:/saturn.jpl.nasa.gov 53 Infrared Mapping Spectrometer VIMS 53 Earth orbiting satellites 53 ESOC 53 Spectrometer 53 coronal loops 53 unmanned probes 53 Huygens spacecraft 53 antineutrinos 53 meteoroid 53 satellites orbiting Earth 53 Space Telescope GLAST 53 Konacki 53 NASA Interstellar Boundary 53 IKAROS 53 rover Opportunity 53 Cartosat 53 Interferometer VLTI 53 Servicing Mission 53 spiral galaxy Messier 53 GeV 53 Mars Climate Sounder 53 lunar explorer 53 Gravity Recovery 53 Hubble Space Telescope 53 constellation Ursa Major 53 type Ia supernovae 53 infrared wavelengths 53 Mars moon Phobos 53 lunar craters 53 baryon 53 journal Monthly Notices 53 Lagoon Nebula 53 highly elliptical orbits 53 twin Voyager spacecraft 53 spiral nebulae 53 SELENE 53 Compton Gamma Ray 53 impactor spacecraft 53 ionospheric 53 Smos 53 antihelium 53 FORMOSAT 53 Red Rectangle 53 NanoSIMS 53 Multi Object Spectrograph 53 moons Phobos 53 irregularly shaped asteroid 53 elliptical orbits 53 barred spiral galaxy 53 Nuclear Spectroscopic Telescope Array 53 potentially habitable planets 53 multiwavelength 53 active galactic nuclei 53 NICMOS observations 53 X ray telescope 53 gravitationally lensed 53 CMB radiation 53 ASTRON 53 Eurockot 53 Martian surface 53 Charon Pluto 53 Extrasolar Planet Search 53 Trapezium 53 planetary nebulas 53 Epsilon Indi 53 solar radii 53 submillimeter 53 Trifid Nebula 53 Saturnian 53 Tevatron experiments 53 LCLS 53 globulars 53 planet Gliese #g 53 laser altimeter 53 Extremely Large Telescope 53 Eridani 53 HD #b [001]