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(Click for frequent words.) 75 active galactic nuclei 74 gamma ray emission 74 accretion disk 73 GRBs 72 quasar 72 solar corona 72 Type Ia supernova 72 quasars 72 RS Ophiuchi 71 magnetar 71 gamma ray burst 71 supermassive black hole 71 AGNs 71 supernova explosion 71 X ray wavelengths 70 neutron star 70 Eta Carinae 70 supernova remnants 70 infall 70 supernova remnant 70 elliptical galaxies 70 galaxy clusters 69 SN #A 69 X ray pulses 69 blazars 69 gamma ray flares 69 RXTE 69 Saturn magnetosphere 69 supernova explosions 68 supernovae 68 galaxies 68 galactic cosmic rays 68 XMM Newton 68 photosphere 68 elliptical galaxy 68 galactic disk 68 planetary nebulae 68 blue supergiant 68 auroral 68 dwarf galaxy 68 ejecta 68 SN #gy 68 gamma rays 68 X ray telescopes 68 magnetospheric 67 eclipsing binary 67 gravitational lensing 67 blazar 67 supernova 67 millisecond pulsar 67 type Ia supernova 67 energetic electrons 67 GRB # 67 galaxy cluster 67 microquasar 67 nebula 67 ionized gas 66 protoplanetary disk 66 afterglows 66 Type Ia supernovae 66 circumstellar disk 66 pulsar 66 starburst galaxies 66 metallicity 66 protostar 66 supergiant star 66 X ray binary 66 merging galaxies 66 solar nebula 66 starburst galaxy 66 polar vortex 66 GRB# 66 Hubble observations 66 gamma ray bursts 66 active galactic nucleus 66 filamentary structure 66 interstellar clouds 66 magnetic reconnection 66 neutron stars 66 reflection nebula 66 gravitational radiation 66 red supergiant 66 accretion disks 66 novae 66 X ray binaries 66 circumstellar 66 supermassive black holes 66 protoplanetary disks 66 gravitational interactions 66 galaxy NGC 65 extragalactic 65 particle acceleration 65 substorm 65 lensing galaxy 65 X ray emitting 65 X ray afterglow 65 aurorae 65 magnetars 65 distant galaxies 65 gravitational waves 65 relativistic particles 65 Comet Holmes 65 Arches Cluster 65 galactic mergers 65 chromosphere 65 planetary nebula 65 sodium atoms 65 red supergiants 65 ultraviolet wavelengths 65 interstellar medium 65 HM Cancri 65 GRB #B 65 Bullet Cluster 65 Hanny Voorwerp 65 pulsars 65 infrared wavelengths 65 globular cluster 65 Epsilon Aurigae 64 nebular 64 Trifid Nebula 64 luminosities 64 Cepheids 64 type Ia supernovae 64 cosmic ray particles 64 sun corona 64 Lyman alpha 64 visible wavelengths 64 protostars 64 AB Aurigae 64 interstellar dust 64 magnetic fields 64 luminous galaxies 64 Fermi telescope 64 cosmic rays 64 occultations 64 coronal mass ejection 64 dwarf galaxies 64 Fomalhaut b 64 fainter objects 64 globular clusters 64 Kuiper belt objects 64 supernovas 64 emission nebula 64 intrinsic brightness 64 coronal loop 64 XTE J# 64 diffuse aurora 64 electron neutrinos 64 spiral galaxies 63 RS Oph 63 shorter wavelengths 63 constellation Aquarius 63 cosmic ray 63 WASP #b 63 globulars 63 Virgo Cluster 63 Upsilon Andromedae 63 emit X rays 63 coronal mass ejections CMEs 63 helium nuclei 63 redshifts 63 HD#b 63 HD #b [002] 63 ionized particles 63 KH #D 63 velocity dispersion 63 cosmological distances 63 brown dwarfs 63 infalling 63 V# Mon 63 Alfven waves 63 nucleosynthesis 63 coronal holes 63 Wolf Rayet star 63 Gravitational waves 63 Gamma ray bursts 63 helium atoms 63 faint galaxies 63 galaxy formation 63 optical wavelengths 63 redshift 63 Milky Way halo 63 comet nucleus 63 exosphere 63 filamentary structures 62 Type Ia 62 ionized hydrogen 62 millisecond pulsars 62 axions 62 constellation Cassiopeia 62 baryonic 62 KBOs 62 Crab Nebula 62 Earth magnetosphere 62 Hawking radiation 62 X ray observatories 62 brown dwarf 62 magnetosphere 62 Milky Way Galaxy 62 cryovolcanism 62 substorms 62 Cat Paw Nebula 62 cosmic microwave background 62 extrasolar 62 gamma ray 62 planet orbiting 62 moon Enceladus 62 volcanic plumes 62 supergiant stars 62 RHESSI 62 Wolf Rayet stars 62 nebulae 62 reionization 62 magma ocean 62 corona 62 Kuiper belt 62 ESA XMM Newton 62 Alfvén waves 62 noctilucent clouds 62 zodiacal light 62 distant quasars 62 gamma ray observatory 62 mantle plumes 62 proplyds 62 ionized gases 62 moon Io 62 Quadrantid meteor shower 61 stellar nurseries 61 spiral galaxy NGC 61 interstellar dust clouds 61 gamma ray bursts GRBs 61 elliptical galaxy NGC 61 Carina constellation 61 chondrules 61 aurora 61 polaritons 61 retrograde orbit 61 Orion Nebula 61 accreting 61 VLTI 61 distant galaxy 61 emits X rays 61 Magellanic Clouds 61 TGFs 61 brightnesses 61 giant elliptical galaxy 61 G#.# +#.# 61 anisotropy 61 Andromeda galaxy 61 constellation Virgo 61 Enceladus 61 constellation Centaurus 61 spherical halo 61 coronagraph 61 airglow 61 planetesimals 61 distant supernovae 61 galaxy M# [002] 61 Mpc 61 meridional flow 61 Jupiter magnetosphere 61 Orionids 61 Oort Cloud 61 interacting galaxies 61 sunlike stars 61 Saturn auroras 61 auroral displays 61 protoplanet 61 AU Mic 61 Bug Nebula 61 gravitational lens 61 Carina Nebula 61 gaseous planet 61 backscattered 61 Omega Centauri 61 MG J# +# 61 circumstellar disks 61 ULIRGs 61 rocky planets 61 sunspot 61 spiral galaxy 61 Type Ia supernovas 61 gravitationally 61 gravitational microlensing 61 Ulysses spacecraft 61 earthshine 61 transiting planet 61 gravitationally bound 61 J# +# [002] 61 exoplanet orbiting 61 colliding galaxies 61 planet HD #b 61 BP Psc 61 galactic halo 61 Orion nebula 61 YORP effect 61 CMB radiation 61 moon Mimas 61 Supernovae 61 X ray Observatory 61 galactic bulge 61 auroral activity 61 astronomical objects 61 basaltic rocks 61 moonlets 61 gravitational interaction 60 Stephan Quintet 60 spectroscopically 60 extrasolar planets 60 SN #C 60 SNR #-#.# 60 magnetotail 60 cosmic ray protons 60 microlensing 60 inhomogeneous 60 Epsilon Eridani 60 Gamma rays 60 Coma Cluster 60 planets orbits 60 muon neutrinos 60 Jupiter moon Io 60 constellation Ursa Major 60 W boson 60 nebulosity 60 Saturn rings 60 Milky Way galaxy 60 Type 1a supernovae 60 weakly interacting 60 coronal hole 60 solar irradiance 60 photon energies 60 absorption spectra 60 astronomers 60 redshifted 60 foreground galaxy 60 Doppler shifts 60 antineutrinos 60 Lagoon Nebula 60 weak gravitational lensing 60 cosmic ray flux 60 jovian 60 moonlet 60 icy moons 60 baryonic matter 60 brightest supernova 60 superfluid 60 energetic gamma rays 60 exoplanetary 60 RRATs 60 cometary material 60 spherically symmetric 60 cosmic ray intensity 60 periodicities 60 spectra 60 intracluster 60 comet 60 Milky Way 60 keV 60 infrared wavelength 60 distant quasar 60 silicate dust 60 polarimetry 60 Circinus X 1 60 SN#A 60 Geminga 60 Red Rectangle 60 volcanism 60 GRB #A 60 gamma rays emitted 60 radial velocity 60 Lyrids 60 coronal mass ejections 60 mid latitudes 60 neutrino 60 maser emission 59 solar flares 59 VHE gamma rays 59 WIMPs 59 superluminal 59 convective 59 millimeter wavelengths 59 optical telescopes 59 meteoroids 59 astrophysical 59 ultraviolet radiation emitted 59 Sagittarius B2 59 planet orbits 59 barred spiral galaxy 59 SN #D 59 gravitational wave 59 Evolution Explorer 59 GJ#b 59 microlensing events 59 bosonic 59 ESO PR 59 solitons 59 IR wavelengths 59 elongated orbits 59 moons orbiting 59 supernovae explosions 59 infalling gas 59 XMM Newton observations 59 sunspot cycle 59 collimated 59 supersymmetric particles 59 arcminutes 59 transiting planets 59 exoplanets orbiting 59 Saturnian moon 59 Cosmic Microwave Background 59 Magnetars 59 auroras 59 diffraction pattern 59 GRB 59 sunlike star 59 Cepheid variable 59 heliosphere 59 GJ #b [002] 59 HiRISE image 59 Saturn moon Enceladus 59 GALEX 59 galactic clusters 59 Bok globules 59 ionised 59 supernova SN 59 Voorwerp 59 Crab Pulsar 59 photons emitted 59 Kuiper Belt Objects 59 NGC# 59 cosmic ray collisions 59 CMEs 59 dipole moment 59 spacetime 59 planetary transits 59 galaxy 59 constellation Hercules 59 coronal loops 59 silicon monoxide 59 spectroscopic measurements 59 CMB photons 59 masers 59 Bose Einstein condensates 59 VY Canis Majoris 59 infrared radiation 59 spatially resolved 59 stellar occultation 59 spacecraft flyby 59 spectroscopic 59 particles WIMPs 59 globular star 59 UVOT 59 Kuiper Belt objects 59 protoplanets 59 neutrinos 59 distant galaxy clusters 59 lunar crust 59 galaxy M# [001] 59 photoemission 59 Saturn aurora 59 Tycho supernova remnant 59 GeV 59 SN #E 59 comets 59 sunspots 59 Seyfert galaxies 59 dwarf spheroidal galaxies 59 Cancri e 59 helium ions 59 lightwaves 59 relativistic jets 59 quark gluon plasma 58 lavas 58 Antennae Galaxies 58 HII regions 58 gravitational tides 58 extrasolar planet 58 positrons 58 carbonate minerals 58 ionised gas 58 ray Space Telescope 58 Orion constellation 58 starquakes 58 gaseous planets 58 NASA Chandra 58 phonon 58 quantum mechanically 58 aerosol particles 58 electron beams 58 Maunder minimum 58 tropospheric 58 impactors 58 Small Magellanic Cloud 58 Active Galactic Nuclei 58 primitive meteorites 58 interferometers 58 millimeter wavelength 58 rotating neutron stars 58 Earthlike planets 58 Cygnus X 58 Neutron stars 58 supermassive stars 58 wavelengths 58 galaxies collide 58 cluster NGC 58 submillimeter 58 tidally 58 high redshift galaxies 58 baryon 58 attosecond 58 magnetic flux 58 stellar occultations 58 Perseus cluster 58 coronal heating 58 Andromeda Galaxy 58 stellar seismology 58 Beta Pictoris 58 ARPES 58 Aram Chaos 58 GQ Lupi 58 Venusian atmosphere 58 collisional 58 Galilean moons 58 Betelgeuse 58 blue straggler 58 x ray beams 58 BP Piscium 58 sterile neutrino 58 Corot 7b 58 Supernova #A 58 interferometry 58 TrES 4 58 NASA Wilkinson Microwave 58 Adam Riess 58 electromagnetic flux 58 supermassive 58 gamma ray emitting 58 SCP #F# 58 highly collimated 58 constellation Sagittarius 58 TrES 58 prominences 58 extrasolar planetary systems 58 observable universe 58 Fornax cluster 58 rotational axis 58 Fermi LAT 58 asteroidal 58 relativistic protons 58 Geminid shower 58 constellation Cygnus 58 constellation Taurus 58 arcseconds 58 Oort cloud 58 hypervelocity stars 58 Triangulum Galaxy 58 UV wavelengths 58 oppositely directed 58 Henize #-# 58 NASA Cassini spacecraft 58 meteoritic material 58 Corot 9b 58 HL Tau 58 SMBH 58 ROSAT 58 quasicrystal 58 polar stratospheric 58 Rayleigh scattering 58 lunar perigee 58 Hot Jupiters 58 olivine 58 astrophysicists 57 supersolid 57 infrared photons 57 Cherenkov radiation 57 planet magnetosphere 57 planets orbiting 57 permanently shadowed craters 57 axion 57 Pegasi 57 P/# A2 57 X ray observatory 57 dynamical 57 galactic cores 57 CoRoT 9b 57 cosmic microwave radiation 57 Large Magellanic Cloud 57 magnetization 57 surface plasmons 57 Rosette Nebula 57 electron density 57 GJ #b [001] 57 Raman scattering 57 colloidal crystals 57 constellation Perseus 57 exoplanet 57 star Gliese 57 polariton 57 fermion 57 XMM Newton satellite 57 luminosity 57 Delta Cephei 57 Virgo cluster 57 Orionid meteors 57 volcanic moon Io 57 laser pulse 57 geoneutrinos 57 galaxy redshift 57 Einstein cosmological constant 57 Mimas 57 Higgs bosons 57 meteoroid 57 galactic nucleus 57 orbiting planets 57 gamma ray radiation 57 filamentary 57 photometry 57 infrared spectra 57 photoluminescence 57 Earth ionosphere 57 isotropic 57 eruptive activity 57 binary quasar 57 constellation Cetus 57 ecliptic 57 Magellanic Stream 57 unpolarized 57 mesosphere 57 Cassini flybys 57 water vapor 57 runaway thermonuclear 57 Tarantula Nebula 57 interstellar cloud 57 explosive eruptions 57 Iapetus 57 THz radiation 57 infalling matter 57 solar prominences 57 CoRoT 7b 57 excitons 57 infrared ultraviolet 57 ESA Integral 57 evanescent waves 57 Solar flares 57 neutralinos 57 distant supernovas 57 spectral fingerprint 57 photoelectron 57 transiting exoplanets 57 inhomogeneities 57 comet Tempel Tuttle 57 Galaxy Evolution 57 comet McNaught 57 celestial object 57 Puppis 57 SOHO spacecraft 57 moonquakes 57 SDSS II 57 Doradus 57 plasmon 57 hydroxyl molecules 57 submillimetre wavelengths 57 photometer 57 emitted photons 57 Infrared Thermal Imaging Spectrometer 57 Leonids 57 radiative cooling 57 interferometric 57 ionise 57 constellation Carina 57 submillimetre 57 baryons 57 Noctilucent clouds 57 icy comets 57 phyllosilicates 57 exciton 57 ionosphere 57 spectroscopic observations 57 spinning neutron 57 Microlensing 57 muon neutrino 57 atmospheric circulation 57 unaided eye 56 Butterfly Nebula 56 Cosmic rays 56 cosmic phenomena 56 Type Ic supernova 56 photons 56 terrestrial planets 56 comet tail 56 x ray beam 56 Bose Einstein condensation 56 Auger recombination 56 spectroscopic analysis 56 convective clouds 56 gravitational redshift 56 slender crescent 56 constellation Eridanus 56 Type 1a supernova 56 gravitational lenses 56 electron pairing 56 Orionid 56 CoRoT satellite 56 glows brightly 56 rubidium vapor 56 tropopause 56 micron wavelengths 56 starbursts 56 CAIs 56 spicules 56 multiwavelength 56 volcanic plume 56 hypernova 56 magnetic substorms 56 WHIM 56 QCLs 56 solar minima 56 prograde 56 blackbody 56 phosphorescence 56 proto galaxies 56 gamma ray photons 56 phonons 56 sunspot activity 56 planets orbiting distant 56 dynamical processes 56 occultation 56 circularly polarized light 56 galactic collisions 56 quasiparticle 56 HIP #b 56 Earth magnetotail 56 atomic nuclei 56 detect gamma rays 56 diffraction patterns 56 photocurrent 56 Beta Pictoris b 56 Keck telescope 56 troposphere 56 Comet Hartley 2 56 spectrographs 56 spiral nebulae 56 obscuration 56 heliosheath 56 Spectrograph 56 chemical abundances 56 geomagnetic activity 56 fluorescing 56 radial velocity method 56 Scheila 56 double helix nebula 56 Comet Halley 56 attosecond pulses 56 X ray spectra 56 Kepler #b 56 super Earths 56 carbonaceous chondrites 56 magnetized plasma 56 interstellar dust grains 56 optical spectra 56 muons 56 circumstellar dust 56 radiative 56 sized planets orbiting 56 Comet Tempel Tuttle 56 laser pulses 56 crystalline silicates 56 neutralino 56 olivine mineral 56 plasmasphere 56 cometary 56 gravitational 56 eccentric orbits 56 constellation Lyra 56 midlatitudes 56 NGC #A 56 planemos 56 fading afterglow 56 Mössbauer 56 dynamical evolution 56 outer corona 56 Geminids 56 ESO VLT 56 X ray photons 56 Cepheid variables 56 gravitationally lensed 56 positron 56 Perseus constellation 56 proto planetary disk 56 Trifid 56 magmas 56 Bose Einstein condensate 56 auroral emissions 56 Comet Hale Bopp 56 star Beta Pictoris 56 RX J# 56 neutrons 56 Gravitational lensing 56 IRC +# 56 nucleons 56 OGLE TR #b 56 constellation Scorpius 56 SNe Ia 56 Galileo spacecraft 56 exoplanets 56 silicates 56 Gliese #e 56 kaons 56 Caloris 56 constellation Leo 55 Zeta Ophiuchi 55 Cosmic Microwave Background CMB 55 linearly polarized 55 Mauna Kea Hawaii 55 Higgs particle 55 mineral olivine 55 R Coronae Borealis 55 Veil Nebula 55 Comet 9P/Tempel 1 55 W bosons 55 VIRTIS 55 astrophysical phenomena 55 sonoluminescence 55 Cerenkov radiation 55 infrared spectral 55 Mercury exosphere 55 energetic cosmic rays 55 paramagnetic 55 circular orbits 55 #gy 55 elliptical orbits 55 PSR J# 55 sundog 55 heavily cratered 55 star Spica 55 sulfate aerosol 55 Komossa 55 Gal Yam 55 pointings 55 magnetopause 55 exo planets 55 planet WASP #b 55 Mott insulator 55 HD# [002] 55 planets 55 ESO telescope 55 fissure eruption 55 wavelength infrared 55 gravitational perturbations 55 Rossby waves 55 vortices 55 specular reflection 55 Gliese #c 55 Galactic cosmic rays 55 post perovskite 55 noctilucent 55 constellation Gemini 55 noble gases 55 NASA Voyager spacecraft 55 planets orbiting stars 55 constellation Andromeda 55 Comet #P/Holmes 55 sulfur isotope 55 cosmic strings 55 osmium 55 Syrtis Major 55 magnetic monopoles 55 antiprotons 55 femtosecond pulses 55 astrophysical objects 55 Chi Cygni 55 precessing 55 dipolar 55 lithium atoms 55 magnetic dipole 55 hydrated minerals 55 Filippenko 55 planets circling 55 superfluids 55 neutrino mass 55 electron flux 55 surface plasmon 55 comet Hale Bopp 55 PSR J# +# 55 thermosphere 55 occulted 55 boson 55 ultracold 55 periodic dimming 55 Doppler shift 55 x ray pulses 55 transiting exoplanet 55 high temperature superconductivity 55 photochemical reactions 55 excitations 55 gravitational wobbles 55 zodiacal dust 55 Hipparcos 55 inelastic scattering 55 submillimeter wavelengths 55 Tarantula nebula 55 galaxy NGC# 55 planetesimal 55 interstellar magnetic 55 geomagnetic storms 55 advection 55 comets orbiting 55 ferromagnetism 55 nuclei 55 SNe 55 oscillations 55 Leonid shower 55 filaments 55 microcavities 55 molten magma 55 dense clumps 55 tau neutrino 55 COROT 55 Comet Hartley 55 Wilkinson Microwave Anisotropy Probe 55 planets Uranus 55 submillimeter galaxies 55 Pleiades cluster 55 Infrared Mapping Spectrometer VIMS 55 strange quark 55 magnetic polarity 55 hot Jupiters 55 arcsecond 55 rubidium atoms 55 particles emitted 55 polar latitudes 55 Kuiper Belt Object 55 gamma ray flashes 55 ejecta blanket 55 ion collisions 55 polar craters 55 convection 55 NICMOS 55 electroweak 55 Upsilon Andromedae b 55 sunspot cluster 55 inner Oort Cloud 55 retrograde orbits 55 Spitzer Space Telescope 55 Keck Interferometer 55 antiparticle 55 gravity warps 55 orbiting gamma ray 55 Taurids 55 martian atmosphere 55 amplitudes 55 Arabia Terra 54 Quadrantids 54 silicate mantle 54 constellation Orion 54 Digitized Sky Survey 54 polar mesospheric clouds 54 Sunspots 54 downwelling 54 pseudogap 54 magmatic 54 microcavity 54 Jovian atmosphere 54 quantum tunneling 54 CoRoT #b 54 galactic nuclei 54 thermal gradient 54 planetary orbits 54 magnetization reversal 54 Heliospheric Observatory SOHO 54 numerical simulations 54 Helix Nebula 54 PKS #-# 54 picosecond 54 Cassini flyby 54 spinning neutron stars 54 Milankovitch cycles 54 superposed 54 Area Telescope LAT 54 missing baryons 54 Ring Nebula 54 innermost planet 54 axial tilt 54 fluorophores 54 electron neutrino 54 supernova remnant Cassiopeia 54 heliospheric 54 Saturnian moons 54 SINFONI 54 ringed planet 54 J#.# [001] 54 dust enshrouded 54 WMAP satellite 54 star Fomalhaut 54 HARPS instrument 54 magnetospheres 54 Eridani 54 geomagnetic field 54 sulfate aerosols