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(Click for frequent words.) 69 constellation Ursa Major 66 gamma ray emission 65 constellation Hercules 65 constellation Centaurus 64 galactic disk 64 exoplanets orbiting 64 blazars 64 supergiant star 63 Upsilon Andromedae 63 circumstellar 63 planets orbiting sun 63 gamma ray flares 63 blue supergiant 63 Trapezium 63 constellation Aquarius 63 lensing galaxy 63 stellar occultations 63 constellation Cassiopeia 63 aurorae 62 Gravitational waves 62 exoplanet orbiting 62 Rosette Nebula 62 RS Ophiuchi 62 X ray wavelengths 62 Sagittarius B2 62 cosmological distances 62 VY Canis Majoris 62 volcanic moon Io 62 constellation Carina 62 blazar 62 supernova explosion 62 mu Arae 62 MG J# +# 61 eclipsing binary 61 X ray emission 61 Supernova #A 61 Virgo Cluster 61 Fomalhaut b 61 Zeta Ophiuchi 61 nucleosynthesis 61 circumstellar disks 61 AGNs 61 sunlike stars 61 distant quasar 61 helium nuclei 61 HM Cancri 61 Orion constellation 61 supermassive 61 starburst galaxy 61 planets orbits 61 IRAS #-# 61 rotational axis 61 filamentary structure 61 X ray telescopes 61 occultations 61 spiral galaxy NGC 61 Kuiper belt objects 60 BP Piscium 60 coronal mass ejections CMEs 60 galaxy M# [002] 60 HD# [002] 60 arcminutes 60 red supergiant 60 infall 60 J# +# [002] 60 extragalactic 60 electronvolts 60 exoplanetary 60 Galilean moons 60 Proxima Centauri 60 backscattered 60 keV 60 Coma Cluster 60 red supergiants 60 active galactic nuclei 60 supernovae explosions 60 constellation Puppis 60 Epsilon Eridani 60 photosphere 60 AB Aurigae 60 brightnesses 60 auroral 60 V# Mon 60 energetic gamma rays 60 Fornax cluster 60 X ray binary 60 electron neutrinos 60 galaxy M# [001] 60 cluster NGC 60 galaxy NGC 60 Fermi telescope 60 Cygnus Lyra region 59 cosmic ray protons 59 Kepler 9c 59 Carina Nebula 59 planets moons 59 Beta Pictoris 59 ESO telescopes 59 axial tilt 59 dynamical evolution 59 X ray pulses 59 planet orbits 59 supernova remnants 59 constellation Virgo 59 WASP #b 59 muon neutrinos 59 starburst galaxies 59 Cepheid variables 59 Geminga 59 distant supernovae 59 microquasar 59 airglow 59 exo planets 59 Small Magellanic Cloud 59 SN #gy 59 observable universe 59 spherically symmetric 59 prograde 59 galactic clusters 59 TrES 4 59 axions 59 Lagoon Nebula 59 globulars 59 R Coronae Borealis 59 constellation Auriga 59 visible wavelengths 59 planets orbiting 59 millisecond pulsar 59 Type Ia supernova 59 Gamma ray bursts 59 sodium atoms 59 magnetar 59 interstellar dust clouds 59 GRB #B 59 submillimetre wavelengths 59 Wolf Rayet star 59 ultraviolet wavelengths 59 electron volts eV 59 Bug Nebula 59 elliptical galaxy 59 star Gliese 59 Cat Paw Nebula 59 highly collimated 59 moon Io 59 astrophysical 59 luminous galaxies 59 auroral displays 59 RX J# 58 constellation Lyra 58 Red Rectangle 58 VLTI 58 magnetars 58 antineutrinos 58 Orion nebula 58 Tarantula nebula 58 comets orbiting 58 millisecond pulsars 58 optical wavelengths 58 Gamma rays 58 magnetic dynamo 58 zodiac constellations 58 coronal loops 58 planets orbiting distant 58 Magnetars 58 Gliese #e 58 Ring Nebula 58 fainter objects 58 elongated orbits 58 retroreflector 58 icy moons 58 Doppler shifts 58 type Ia supernova 58 SN #A 58 constellation Taurus 58 starquakes 58 Upsilon Andromedae b 58 retrograde orbits 58 KH #D 58 Neptune Uranus 58 extrasolar 58 supernova explosions 58 emission nebula 58 Gliese #c 58 Trifid Nebula 58 Beta Pictoris b 58 luminosities 58 VHE gamma rays 58 HD#b 58 Supernovae 58 Muchachos Observatory 58 blackholes 58 Solar TErrestrial RElations Observatory 58 Comet Holmes 58 KBOs 58 XMM Newton 58 GRB# 58 reflection nebula 58 constellation Sagittarius 58 GeV 58 nebular 58 gamma ray observatory 57 chemical abundances 57 foreground galaxy 57 dwarf spheroidal galaxies 57 ionized hydrogen 57 planetary nebulae 57 X ray binaries 57 metallicity 57 Stephan Quintet 57 substorm 57 planetary nebula 57 planets comets 57 Cosmic rays 57 protostar 57 Milky Way halo 57 HL Tau 57 retrograde orbit 57 Io Europa 57 GRBs 57 constellation Eridanus 57 Type Ia supernovas 57 Antennae Galaxies 57 transiting planets 57 stellar nurseries 57 Triangulum 57 GJ#b 57 energetic electrons 57 ionized particles 57 gravitationally bound 57 Henize #-# 57 Andromeda halo 57 proplyds 57 GJ #b [002] 57 afterglows 57 Galactic cosmic rays 57 Orionids 57 Arches Cluster 57 SDSS II 57 Saturnian moon 57 constellation Pegasus 57 Cygnus X 57 constellation Scorpius 57 galactic cosmic rays 57 orbiting observatories 57 CoRoT #b 57 RS Oph 57 Evolution Explorer 57 tidal bulge 57 Tarantula Nebula 57 GALEX 57 Eagle Nebula 57 Corot 7b 57 jovian 57 Orion Nebula 57 Epsilon Aurigae 57 solar prominences 57 transiting planet 57 moon Enceladus 57 gravitational tides 57 type Ia supernovae 57 ringed planet 57 Jovian moons 57 protoplanetary disk 57 Ulysses spacecraft 57 cosmic ray particles 57 Eta Carinae 57 intrinsic brightness 57 gravitational radiation 57 elliptical galaxy NGC 57 accretion disks 57 diffuse aurora 57 Milky Way Galaxy 56 sized planets orbiting 56 constellation Andromeda 56 hydrogen helium 56 Crab Nebula 56 microlensing events 56 gravitational microlensing 56 relativistic particles 56 galactic bulge 56 helium ions 56 NGC #A 56 X ray emitting 56 Earths orbiting 56 galactic mergers 56 extrasolar planets orbiting 56 gamma rays 56 asteroids comets 56 exosphere 56 Comet Halley 56 Neutron stars 56 interacting galaxies 56 protoplanetary disks 56 comets asteroids 56 solar corona 56 circumstellar disk 56 Epsilon Indi 56 Syrtis Major 56 constellation Leo 56 planetary transits 56 cosmic cannibal 56 exo planet 56 accretion disk 56 astrometry 56 Saturnian moons 56 cosmic ray 56 ionized gas 56 globular cluster M# 56 gravitational lenses 56 moon Mimas 56 distant galaxy 56 relativistic protons 56 ESO VLT 56 interstellar dust grains 56 auroral activity 56 ray Space Telescope 56 moonquakes 56 Perseus Cluster 56 infalling 56 faraway galaxies 56 Cosmic Microwave Background 56 radial velocity technique 56 astrophysical phenomena 56 noctilucent clouds 56 precessing 56 emit X rays 56 supergiant stars 56 planemos 56 trans Neptunian objects 56 cosmic rays 56 gravitational interaction 56 magnetotail 56 Saturn magnetosphere 56 X ray afterglow 56 southern constellation Carina 56 Cepheids 56 Delta Cephei 56 astronomical objects 56 Cherenkov radiation 56 galactic cores 56 Jupiter Uranus 56 galaxies collide 56 Pleiades cluster 56 planet HD #b 56 Omega Centauri 56 active galactic nucleus 56 Type 1a supernova 56 Andromeda Galaxy 56 planets asteroids 56 particle acceleration 56 barred spiral galaxy 55 ENAs 55 supernovas 55 Large Magellanic Cloud 55 BP Psc 55 stellar seismology 55 spiral galaxies 55 Hot Jupiters 55 Type 1a supernovae 55 filamentary structures 55 Galaxy Evolution 55 prominences 55 constellations Cygnus 55 Butterfly Nebula 55 neutrinos 55 interstellar clouds 55 Exoplanets 55 pointings 55 celestial sphere 55 electron volt 55 ESA Integral 55 Tauri Sb 55 Muons 55 galaxy cluster 55 solar radii 55 Observatory STEREO 55 Extrasolar planets 55 moons orbiting 55 circular orbits 55 detect gravitational waves 55 AU Mic 55 Uranus Neptune 55 RHESSI 55 COROT 55 constellation Cepheus 55 X ray observatories 55 transiting exoplanets 55 Tau Ceti 55 Diviner 55 Hale Bopp 55 protoplanetary discs 55 brightest supernova 55 Cassini spacecraft orbiting 55 ejecta 55 cosmic phenomena 55 galaxy 55 constellation Aries 55 gaseous planet 55 Fomalhaut 55 inhabitable planets 55 electrons protons 55 planetary Transits 55 supernova remnant 55 Uranus Jupiter 55 constellation Vulpecula 55 waning gibbous 55 NASA THEMIS 55 oppositely directed 55 planets orbiting stars 55 photoelectron 55 extrasolar planetary systems 55 micron wavelengths 55 moon Ganymede 55 galaxy redshift 55 hexagonal mirrors 55 constellation Draco 55 Cassini flybys 55 globular cluster 55 planets 55 eccentric orbits 55 moons Phobos 55 Comet 9P/Tempel 1 55 arcsecond 55 Jupiter Ganymede 55 constellation Cetus 55 constellation Monoceros 55 Pluto Charon 55 Galileo spacecraft 55 cosmic ray flux 55 SN #D 55 Shepherding Spacecraft 55 silicate dust 55 planetary nebulas 55 Andromeda galaxy 55 Higgs bosons 55 GQ Lupi 55 Astrophysical 55 blue straggler 55 Charon Pluto 55 gamma ray burst 55 extrasolar planets 55 orbits Saturn 55 millimeter wavelength 55 cosmic ray collisions 55 Kuiper Belt object 55 moons circling 55 antiparticle 55 Monoceros 54 magnetospheric 54 planets Uranus 54 Bok globules 54 reionization 54 HiRISE image 54 outer planets 54 unpolarized 54 giant elliptical galaxy 54 runaway thermonuclear 54 XTE J# 54 CoRoT satellite 54 WMAP satellite 54 spiral galaxy Messier 54 impactor spacecraft 54 Trifid 54 redshifts 54 comet nucleus 54 detect gamma rays 54 galactic halo 54 ROSAT 54 comet Tempel Tuttle 54 nebulae 54 Mercury Uranus 54 gamma rays emitted 54 gravitational wobbles 54 nebulosity 54 star Spica 54 HD #b [002] 54 slender crescent 54 MeV 54 planet orbiting 54 ejecta blanket 54 QQ# 54 z ~ 54 quasar 54 merging galaxies 54 earthshine 54 ionised 54 P/# A2 54 orbiting planets 54 Helix Nebula 54 spherical halo 54 Cepheid variable 54 OGLE TR 54 constellation Aquila 54 starlike 54 masers 54 elliptical galaxies 54 periodicities 54 Hubble observations 54 constellation Cygnus 54 ESO PR 54 attosecond 54 Hubble Space Telescope HST 54 chromosphere 54 NEAs 54 Doradus 54 thermonuclear fusion 54 Descent Imager Spectral Radiometer 54 orbiting gamma ray 54 arcseconds 54 spiral galaxy 54 star clusters nebulae 54 HARPS spectrograph attached 54 helium atoms 54 Suzaku 54 PKS #-# 54 Eta Aquarid meteor shower 54 arcsec 54 gravitationally lensed 54 ionise 54 particle detectors 54 basaltic rocks 54 crystalline silicates 54 THEMIS satellites 54 lowermost mantle 54 lightwaves 54 dwarf galaxy 54 spatially resolved 54 ion collisions 54 Mpc 54 distant galaxies 54 X ray photons 54 WIMPs 54 Wolf Rayet stars 54 cosmic collisions 54 Chi Cygni 54 Pegasi 54 Type Ia 54 femtosecond timescale 54 Kuiper Belt Objects 54 Orionid meteors 54 ionised gas 54 Geminid meteors 54 interstellar cloud 54 Keck Interferometer 54 diffract 54 Jupiter moon Io 54 IRC +# 54 infrared wavelengths 54 unmanned probes 54 SN#A 54 superstrings 54 ULIRGs 54 protoplanetary 54 Hubble orbits 54 moonlets 54 nursery Carina Nebula 54 spiral nebulae 54 hadrons 54 Earthlike planets 54 albedo reflectivity 54 gravitational interactions 54 magnetized plasma 54 solar neutrinos 54 rotating neutron stars 54 Gemini constellation 54 Horsehead Nebula 54 electron flux 54 protostars 54 excitations 54 polarimetry 54 largest moon Charon 54 X ray observatory 54 Eridani 54 colliding galaxies 54 neutron spectrometer 54 nebula 54 planet Uranus 54 orbiting 54 spacecraft flyby 54 Nasa spacecraft 54 planet WASP #b 54 coronal loop 53 constellation Ophiuchus 53 rotating neutron 53 spectrographs 53 Brookhaven Relativistic Heavy 53 SMBHs 53 lunar meteorites 53 VISTA telescope 53 interstellar particles 53 Pleiades star 53 Corot 9b 53 orbits 53 GJ #b [001] 53 GRB # 53 thermonuclear reactions 53 meteoritic material 53 infalling gas 53 gravity warps 53 Quadrantid meteor shower 53 starlike object 53 optical spectra 53 planet Gliese #g 53 gamma ray astronomy 53 Planck satellite 53 photochemical reactions 53 comet Lulin 53 spacecraft Cassini 53 coronagraph 53 celestial objects 53 midlatitudes 53 magma ocean 53 planet magnetosphere 53 gravitational perturbations 53 impactors 53 zodiacal light 53 distant quasars 53 constellation Coma Berenices 53 Wolszczan 53 uncharged particles 53 SNe Ia 53 Saturnian system 53 remote sensing instruments 53 Gamma ray burst 53 particle astrophysics 53 Earth radii 53 AKARI 53 Herschel Space 53 OGLE TR #b 53 magnetic substorms 53 outer corona 53 Shoemaker Levy 53 lunar craters 53 asteroids orbiting 53 infrared imager 53 starbursts 53 hadron 53 Magellanic Clouds 53 periodic dimming 53 SMM J# 53 Gamma ray 53 Puppis 53 habitable planets 53 plagioclase 53 orbital eccentricity 53 nebula NGC 53 Circinus X 1 53 proto cluster 53 subsurface ocean 53 highly magnetized neutron 53 highly elliptical orbit 53 impactor 53 gamma ray bursts 53 magnetospheres 53 hydrosphere 53 coronal mass ejections 53 cometary debris 53 ionized gases 53 hypernova 53 asteroid Vesta 53 VIRTIS 53 proto galaxies 53 binary quasar 53 polar mesospheric clouds 53 BLG #Lb 53 planet Gliese #c 53 SMBH 53 Earth ionosphere 53 radial velocities 53 Perseid meteor 53 X ray spectrometer 53 infrared ultraviolet 53 Saturn Jupiter Uranus 53 substorms 53 Elliptical galaxies 53 moons Europa 53 exoplanet hunter 53 Ultraviolet Optical Telescope 53 comet Hale Bopp 53 proton antiproton collisions 53 Perseus constellation 53 Solar flares 53 WISE spacecraft 53 CoRoT 7b 53 sunlike star 53 DISR 53 star Beta Pictoris 53 magnetic polarity 53 meridional flow 53 orbital resonance 53 constellation Pisces 53 electroweak 53 proton proton collisions 53 Cancri e 53 COROT 7b 53 elongated orbit 53 Veil Nebula 53 electron volts 53 Comet Hartley 53 Herbig Ae Be 53 protoplanet 53 waxing crescent 53 Voorwerp 53 nebulas 53 electromagnetic flux 53 Space ENvironment GEochemistry 53 Type Ia supernovae 53 lobate scarps 53 parsecs 53 millimeter wavelengths 53 spinels 52 electron volts GeV 52 cosmic microwave radiation 52 TrES 52 planetoids 52 #P/Churyumov-Gerasimenko 52 electrons emitted 52 dipolar 52 Virgo cluster 52 Scorpii 52 Betelgeuse 52 radial velocity 52 supernova 52 mineralogical composition 52 Mars Uranus 52 ultraviolet photons 52 HIRES spectrometer 52 colliding protons 52 synchronous orbit 52 CAIs 52 noctilucent 52 radiative cooling 52 silicon monoxide 52 Kuiper Belt Object 52 Galilean satellites 52 supernova SN 52 constellation Perseus 52 IRAS 4B 52 Planetary nebulae 52 TGFs 52 hypervelocity stars 52 Cassini flyby 52 asteroidal 52 constellation Gemini 52 carbonaceous chondrites 52 neutralinos 52 sunward 52 elliptical orbits 52 photon energies 52 Comet Hartley 2 52 novas 52 occulted 52 gravitational tugs 52 Bose Einstein condensates 52 smallest exoplanet 52 intracluster 52 gamma ray emitting 52 Saturn outermost 52 Yinghuo 1 52 Telescope LSST 52 corona discharge 52 Beehive Cluster 52 neutrino particles 52 outermost planets 52 Saturnian 52 gamma ray photons 52 YORP effect 52 BLG #L 52 Venusian atmosphere 52 nucleons 52 proto planetary disk 52 Earth asteroids 52 Coma cluster 52 shorter wavelengths 52 deuterium atoms 52 ESO Paranal Observatory 52 solar nebula 52 gamma ray radiation 52 spinning neutron stars 52 Saturn Uranus 52 Anisotropy Probe 52 asteroseismology 52 microlensing 52 T Tauri 52 stellar occultation 52 Eridanus 52 Hipparcos 52 quasars 52 lunar perigee 52 SN #E 52 habitable zones 52 Saturn auroras 52 planets circling 52 exoplanets 52 velocity vector 52 Cerro Paranal 52 baryonic 52 Manned missions 52 SNR #-#.# 52 Jupiter magnetosphere 52 HD #b [001] 52 supernovae 52 Trojan asteroids 52 concentrating photovoltaics CPV 52 globular clusters 52 astrophysical objects 52 Mars landers 52 Milky Way galaxy 52 gamma ray bursts GRBs 52 Active Galactic Nuclei 52 baryon 52 HESS telescopes 52 Cerro Pachon 52 spectrometric 52 Olympus Mons 52 NASA Wilkinson Microwave 52 CoRoT 9b 52 redshift 52 electron positron 52 earthlike planets 52 novae 52 Anisotropy Probe WMAP 52 dipole moment 52 galaxy NGC# 52 Orionid 52 Corona Australis 52 twin Voyager spacecraft 52 Saturn Cassini 52 planetary conjunctions 52 ultraviolet radiation emitted 52 Explorer WISE 52 muon neutrino 52 HiRISE camera aboard 52 gamma ray 52 tau neutrinos 52 icy comets 52 galaxies nebulae 52 Astrological lore 52 Eta Carina 52 exoplanets planets 52 zodiacal dust 52 nuclides 52 Substorms 52 constellation Serpens 52 Relations Observatory STEREO 52 surface plasmons 52 highly elliptical orbits 52 Rossby waves 52 Eta Aquarids 52 proton collisions 52 interstellar dust particles 52 Sagittarius dwarf galaxy 52 Fermi Telescope 52 Gamma ray bursts GRBs 52 orbited Jupiter 52 muons 52 cosmic ray intensity 52 solar minima 52 dust enshrouded 52 UV wavelengths 52 planetary orbits 52 IR wavelengths 52 NGC# 52 lunar equator 52 Kuiper belt object 52 SOHO spacecraft 52 Kuiper belt 52 Comet Hale Bopp 52 olivine mineral 52 Noctilucent clouds 52 Cosmic Evolution 52 Digitized Sky Survey 52 supersymmetric particles 51 Gliese #d 51 diffracting 51 Venus transits 51 THEMIS spacecraft 51 Oort Cloud 51 icy moon Enceladus 51 phyllosilicate 51 colloidal crystals 51 constellation Fornax 51 Saturn moon Mimas 51 Jupiter Saturn 51 Milankovitch cycles 51 Voyager probes 51 penumbral lunar eclipse 51 waxing gibbous moon 51 energetic cosmic rays 51 antiproton 51 constellation Ara 51 Heliospheric Observatory SOHO 51 ultraluminous galaxy 51 coronal hole 51 outermost planet 51 tau neutrino 51 Europa Ganymede 51 tholins 51 electron positron pairs 51 particle collisions 51 Epimetheus 51 ecliptic plane 51 celestial object 51 GZK cutoff 51 moons orbiting Saturn 51 circumstellar dust 51 submillimeter 51 magnetosphere 51 proton proton 51 Mars Jupiter Uranus 51 spectral fingerprint 51 dense clumps 51 ATLAS detector 51 Jovian planets 51 neutrino 51 Comet #P/Holmes 51 Cosmic Microwave Background CMB 51 Samuel Oschin Telescope 51 auroras 51 Bullet Cluster 51 comet Shoemaker Levy 51 RRATs 51 permanently shadowed craters 51 interstellar dust 51 planetarium dome 51 solar flares 51 Geminid shower 51 subatomic particles 51 earths 51 infrared photons 51 Infrared Astronomical Satellite IRAS 51 collimated 51 airbursts 51 constellation Libra 51 silicate mantle 51 gibbous 51 Quadrantid 51 polar vortex 51 Comet Machholz 51 hydrogen nuclei 51 positrons 51 wavelengths 51 STEREO spacecraft 51 Hubble Constant 51 helium atom 51 neutral mass spectrometer 51 Earth magnetosphere 51 Scheila 51 Jovian moon 51 comet 51 supermassive black hole 51 Fermi Gamma ray 51 Planetary Transits 51 super Earths 51 matter antimatter asymmetry 51 Enceladus 51 nucleon 51 bosonic 51 La Silla observatory 51 umbral shadow 51 thrilling stargazers 51 Tempel Tuttle 51 thin crescent 51 baryonic matter 51 V# Sgr 51 Comet Elenin 51 diffraction patterns 51 Sombrero Galaxy 51 Magellanic Stream 51 Hanny Voorwerp 51 baryon acoustic oscillations 51 supernovae explode 51 submillimetre 51 SINFONI 51 Saturn moon Iapetus 51 spectroscopic measurements 51 particle physics experiments 51 galactic nucleus 51 MINOS experiment 51 Saturn outermost ring 51 HII regions 51 exoplanet discoveries 51 Rosetta orbiter 51 coronal mass ejection 51 electrons positrons 51 spectroscopically 51 coronal holes 51 asterism 51 brown dwarfs 51 SN #C 51 Planck telescope 51 whiz harmlessly 51 beautifully retro styled 51 Super Kamiokande 51 spiral galaxy M# 51 antineutrino 51 PSR B# +# 51 ecliptic 51 sidereal