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(Click for frequent words.) 77 neutron star 77 accretion disks 74 X ray emission 74 infall 73 protostar 72 active galactic nuclei 72 circumstellar disk 72 supermassive black hole 71 protoplanetary disk 71 accreting 70 galactic disk 70 ejecta 69 gravitationally 69 blue supergiant 69 elliptical galaxy 69 interstellar medium 69 supernova explosion 69 galaxy clusters 68 infalling matter 68 infalling 68 magnetar 68 Wolf Rayet star 68 quasar 68 dwarf galaxy 67 neutron stars 67 galaxy cluster 67 circumstellar 67 supermassive black holes 67 merging galaxies 66 galactic halo 66 protostars 66 galaxies 66 galaxy M# [002] 66 red supergiant 66 pulsar 66 active galactic nucleus 66 gravitationally bound 66 ionized gas 66 solar nebula 66 planetesimals 66 circumstellar disks 65 supernova 65 gamma ray emission 65 nebula 65 Neutron stars 65 protoplanets 65 supernova remnant 65 supernova explosions 65 nebular 65 ionized particles 64 Eta Carinae 64 quasars 64 gravitational interaction 64 SN #A 64 infalling gas 64 planetary nebula 64 spacetime 64 relativistic particles 64 Type Ia supernova 64 energetic electrons 64 sunlike star 64 X ray emitting 64 gravitational radiation 64 AGNs 64 galaxy 64 distant galaxies 64 Virgo Cluster 64 interstellar dust 64 supergiant star 64 millisecond pulsar 64 galaxies collide 64 globular cluster 64 WASP #b 64 AB Aurigae 64 Andromeda galaxy 64 planetary nebulae 63 supernova remnants 63 Milky Way Galaxy 63 microquasar 63 blazars 63 interstellar cloud 63 type Ia supernova 63 supermassive stars 63 gravitational interactions 63 Hawking radiation 63 blazar 63 interstellar clouds 63 supernovae 63 oppositely directed 63 supermassive 63 blue straggler 63 sodium atoms 63 SN #C 62 Saturn magnetosphere 62 spiral galaxies 62 gamma ray burst 62 spirals inward 62 comet nucleus 62 GQ Lupi 62 starburst galaxy 62 SMBH 62 relativistic jets 62 elliptical galaxies 62 Earth magnetosphere 62 planets orbits 62 spherical halo 62 eclipsing binary 62 Gravitational waves 62 silicate dust 62 RS Ophiuchi 61 magma ocean 61 magnetic reconnection 61 observable universe 61 galactic cores 61 galaxy NGC 61 colliding galaxies 61 Epsilon Eridani 61 Hanny Voorwerp 61 GRBs 61 protoplanetary disks 61 dense clumps 61 planet HD #b 61 gravitational waves 61 superdense 61 torus 61 emits X rays 61 galactic mergers 61 gamma rays 61 moonlets 61 V# Mon 61 HD#b 61 Oort Cloud 61 globular clusters 61 proplyds 61 GJ #b [002] 61 distant galaxy 61 emit X rays 61 spherically symmetric 61 galaxy formation 61 runaway thermonuclear 61 rotational axis 61 HM Cancri 61 galactic bulge 61 X ray binary 61 type Ia supernovae 61 molten magma 61 Type 1a supernovae 61 gaseous planet 61 X ray pulses 61 elongated orbits 61 galactic clusters 61 giant elliptical galaxy 61 elliptical galaxy NGC 61 magnetotail 61 Milky Way galaxy 61 reflection nebula 61 magnetosphere 61 neutralinos 60 solar corona 60 gravitational 60 Milky Way halo 60 constellation Cassiopeia 60 gravitational attraction 60 protoplanet 60 brown dwarf 60 Jupiter magnetosphere 60 lensing galaxy 60 Bullet Cluster 60 brown dwarfs 60 magnetospheric 60 Alfven waves 60 coronal mass ejection 60 superfluid 60 Fomalhaut b 60 superdense neutron star 60 atomic nuclei 60 redshifted 60 constellation Virgo 60 Planetary nebulae 60 eccentric orbits 60 silicon monoxide 60 GRB # 60 photosphere 60 X ray wavelengths 60 red supergiants 60 galaxy M# [001] 60 dwarf galaxies 60 interstellar dust clouds 60 quark gluon plasma 60 fainter objects 60 giant elliptical galaxies 60 glows brightly 60 GJ#b 60 galaxy supermassive black 60 Magellanic Clouds 60 Omega Centauri 60 supernovas 60 comet 60 starburst galaxies 60 tidal tails 60 magnetic fields 60 PSR J# 60 constellation Hercules 59 Type Ia supernovae 59 millisecond pulsars 59 comet tail 59 cosmological distances 59 stellar nurseries 59 tidally 59 ionizes 59 Milky Way 59 coronal loop 59 G#.# +#.# 59 Epsilon Aurigae 59 BP Psc 59 Bok globules 59 GJ #b [001] 59 nucleosynthesis 59 baryonic 59 X ray telescopes 59 Beta Pictoris 59 nebulosity 59 filamentary 59 emission nebula 59 pulsars 59 spiral galaxy 59 relativistic protons 59 filamentary structure 59 ionised 59 Schwarzschild radius 59 Venusian atmosphere 59 cometary material 59 planet orbiting 59 jovian 59 HD #b [002] 59 Oort cloud 59 constellation Aquarius 59 Wolf Rayet stars 59 Saturnian moon 59 distant quasar 59 Chi Cygni 59 substorm 59 particle acceleration 59 spinning neutron 59 Large Magellanic Cloud 59 Kuiper belt 59 Sagittarius B2 59 antimatter particles 59 foreground galaxy 59 Cygnus X 59 comet Tempel Tuttle 59 exoplanet orbiting 58 volcanic moon Io 58 Arches Cluster 58 strangelet 58 nebulae 58 rocky planets 58 rotating neutron 58 gravity warps 58 retrograde orbit 58 axions 58 galactic cosmic rays 58 gamma ray bursts 58 moon Enceladus 58 extrasolar 58 SN #gy 58 ejecta blanket 58 X ray binaries 58 CMB photons 58 celestial object 58 moonlet 58 AU Mic 58 polar vortex 58 corona 58 filamentary structures 58 gamma rays emitted 58 vortices 58 NGC #A 58 protoplanetary discs 58 Hot Jupiters 58 proto galaxies 58 helium nuclei 58 proto planetary disk 58 HL Tau 58 Fornax cluster 58 Kuiper Belt objects 58 ionize 58 Virgo cluster 58 W boson 58 moon Mimas 58 SN#A 58 afterglows 58 Enceladus 58 XTE J# 58 helium atoms 58 GRB #B 58 Comet Holmes 58 gravitational tides 58 planetesimal 58 nuclei 58 ionised gas 58 Triangulum 58 tidal bulge 58 exoplanetary 58 icy moons 58 planet orbits 58 HII regions 58 Earth ionosphere 58 hypernova 58 chondrules 57 evanescent waves 57 globulars 57 novae 57 Sagittarius dwarf galaxy 57 gaseous envelope 57 planets 57 energetic gamma rays 57 galaxy NGC# 57 Trifid Nebula 57 Henize #-# 57 heliosphere 57 Coma Cluster 57 hydrogen nuclei 57 atomic nucleus 57 auroral 57 magnetars 57 collisional 57 Upsilon Andromedae 57 WIMPs 57 VY Canis Majoris 57 X ray Observatory 57 planet WASP #b 57 lunar crust 57 rotating neutron stars 57 Corot 9b 57 heliosheath 57 supersymmetric particles 57 HD# [002] 57 magnetic dynamo 57 asteroidal 57 constellation Ursa Major 57 planemos 57 distant galaxy clusters 57 Voorwerp 57 luminous galaxies 57 Red Rectangle 57 GRB# 57 thermonuclear reactions 57 Andromeda Galaxy 57 planet magnetosphere 57 constellation Cetus 57 icy comets 57 RS Oph 57 magnetic monopoles 57 exosphere 57 muon 57 Type Ia supernovas 57 terrestrial planets 57 spiral galaxy NGC 57 ionized hydrogen 57 meteoroids 57 extragalactic 57 particles WIMPs 57 Saturn rings 57 chromosphere 57 thermonuclear explosion 57 angular momentum 56 cosmic dust 56 ionized gases 56 Kuiper belt objects 56 comet Hale Bopp 56 moon Io 56 metallicity 56 Active Galactic Nuclei 56 Supernovae 56 circular orbits 56 supernovae explosions 56 highly collimated 56 Higgs bosons 56 moons orbiting 56 radial velocity 56 distant supernovae 56 dwarf spheroidal galaxies 56 gravitational tugs 56 cosmic microwave background 56 Beta Pictoris b 56 convective 56 constellation Carina 56 protoplanetary 56 Type Ia 56 transiting planet 56 exciton 56 gamma ray flares 56 Fermi telescope 56 Carina Nebula 56 gaseous 56 Crab Nebula 56 strangelets 56 Carina constellation 56 elongated orbit 56 TrES 4 56 GeV 56 hot Jupiters 56 comet McNaught 56 inhomogeneous 56 planets moons 56 proto planetary disks 56 Komossa 56 orbital resonance 56 Cepheids 56 RX J# 56 Zeta Ophiuchi 56 orbiting planets 56 exoplanets orbiting 56 lithium atoms 56 Earthlike planets 56 electron neutrinos 56 SN #E 56 coronagraph 56 cosmic cannibal 56 constellation Centaurus 56 electrons 56 quantum tunneling 56 ESA XMM Newton 56 x ray beam 56 meteoroid 56 maser emission 56 astrophysical 56 zodiacal light 56 permanently shadowed craters 56 masers 56 cosmic ray particles 56 planetary embryos 56 Jupiter moon Io 55 Gliese #c 55 R Coronae Borealis 55 habitable planets 55 subatomic particles 55 plasmasphere 55 exoplanet 55 earthlike planets 55 pions 55 constellation Sagittarius 55 particles 55 olivine mineral 55 CoRoT #b 55 gravitational microlensing 55 X ray afterglow 55 extrasolar planet 55 Iapetus 55 backscattered 55 cosmic rays 55 Comet Tempel Tuttle 55 heliopause 55 Cosmic Microwave Background 55 Corot 7b 55 laser pulse 55 helium ions 55 Antennae Galaxies 55 distant quasars 55 sun corona 55 outer layers 55 baryon 55 X ray observatory 55 interstellar dust grains 55 BP Piscium 55 gaseous planets 55 transiting exoplanet 55 gravitational tug 55 sunlike stars 55 star Gliese 55 constellation Leo 55 planet transits 55 precessing 55 CMB radiation 55 electron density 55 Galileo spacecraft 55 galactic collisions 55 cosmic ray collisions 55 Cepheid variable 55 Jovian moons 55 orbits Saturn 55 ultraviolet wavelengths 55 PSR J# +# 55 Geminga 55 zodiacal dust 55 supergiant 55 gravitational wave 55 XMM Newton 55 magnetopause 55 Rosette Nebula 55 coronal mass ejections 55 gravitational lenses 55 sterile neutrino 55 Type 1a supernova 55 J# +# [002] 55 diffraction pattern 55 deuterium atoms 55 astrophysical phenomena 55 potassium atoms 55 aerosol particles 55 intrinsic brightness 54 impactors 54 electron 54 wavefunction 54 electroweak 54 interstellar space 54 barred spiral galaxy 54 Churyumov Gerasimenko 54 aurorae 54 Cosmic rays 54 RXTE 54 Galactic cosmic rays 54 ultraviolet photons 54 slender crescent 54 exo planets 54 gravitational lens 54 ULIRGs 54 Supernova #A 54 cumulus cloud 54 periodic dimming 54 Upsilon Andromedae b 54 brightnesses 54 atoms 54 astrophysical objects 54 gravitational lensing 54 lightwaves 54 Orion nebula 54 Bose Einstein condensates 54 neutrino 54 planets orbiting distant 54 Lyman alpha 54 intracluster 54 muon neutrino 54 celestial sphere 54 cometary debris 54 Stephan Quintet 54 elliptical orbits 54 gravitational slingshot 54 cometary 54 constellation Ophiuchus 54 strange quark 54 comets orbiting 54 coronal loops 54 muon neutrinos 54 chemical abundances 54 galactic nuclei 54 interacting galaxies 54 VHE gamma rays 54 KBOs 54 highly magnetized neutron 54 habitable zones 54 excitons 54 star Beta Pictoris 54 galactic magnetic 54 Kuiper Belt Objects 54 Jovian moon 54 exoplanets 54 planet Uranus 54 supernova SN 54 Magnetars 54 cluster NGC 54 Lagoon Nebula 54 electron positron pairs 54 planetoid 54 dynamical evolution 54 mineral olivine 54 hydrogen atoms 54 Earth radii 54 Gliese #e 54 Jovian atmosphere 54 Earth magnetotail 54 Trifid 54 infrared laser beam 54 martian atmosphere 54 silicates 54 Mandushev 54 carbonate minerals 54 weakly interacting 54 x ray pulses 54 Bug Nebula 54 basaltic rocks 54 cosmic microwave radiation 54 Kelvin Helmholtz 54 volcanic magma 54 NGC# 54 binary asteroid 54 IRAS #-# 54 dense neutron stars 54 planets comets 54 Io volcanoes 54 fading afterglow 54 Keck Interferometer 54 HiRISE image 54 planets orbiting 54 arcminutes 54 Alfvén waves 54 kaons 54 luminosities 54 quasicrystal 54 CoRoT 54 tholins 54 mantle plumes 54 P/# A2 54 ringed planet 54 subatomic particle 54 Earthlike planet 54 Reiner Gamma 54 Spitzer infrared spectrograph 54 binary quasar 53 planetary orbits 53 dynamical 53 Crab pulsar 53 supergiant stars 53 infrared radiation 53 axion 53 constellation Taurus 53 Gal Yam 53 Tarantula Nebula 53 stellar occultation 53 dipolar 53 ultracold atoms 53 gravitational instabilities 53 antiparticle 53 Cancri 53 coronal mass ejections CMEs 53 Orion constellation 53 boson 53 comets 53 HIP #b 53 microlensing events 53 spinning pulsar 53 Io Europa 53 Galilean moons 53 Toutatis 53 spinning neutron stars 53 protoplanetary disc 53 heliospheric 53 nanobubbles 53 nucleons 53 sterile neutrinos 53 positrons 53 subsurface ocean 53 neutrinos 53 magma chamber 53 Wolszczan 53 Trapezium 53 volcanic plumes 53 ionise 53 Einstein relativity theory 53 Trojan asteroids 53 positron 53 double helix nebula 53 Helix Nebula 53 velocity dispersion 53 hypervelocity stars 53 unpolarized 53 neutrino particles 53 SMBHs 53 trans Neptunian objects 53 fermion 53 redshift 53 interstellar particles 53 spectroscopically 53 crystalline silicates 53 Pluto Charon 53 protons collide 53 detect gamma rays 53 SN #D 53 superluminal 53 submillimeter 53 oblate spheroid 53 neighboring Andromeda galaxy 53 post perovskite 53 Seyfert galaxies 53 ionosphere 53 Fomalhaut 53 subatomic 53 proton 53 Betelgeuse 53 THz radiation 53 helium atom 53 Cat Paw Nebula 53 Small Magellanic Cloud 53 hadrons 53 orbits 53 #P/Churyumov-Gerasimenko 53 Pegasi 53 moon Ganymede 53 outermost layers 53 filaments 53 cosmic phenomena 53 globular star 53 XMM Newton satellite 53 Kuiper Belt object 53 extrasolar planets 53 W bosons 53 sized planets orbiting 53 impactor spacecraft 53 general relativity 53 HD #b [001] 53 gravitational pull 53 Higgs particle 53 CoRoT 7b 53 toroid 53 astronomical objects 53 Cosmologists 53 lavas 53 solitons 53 TrES 53 gravitational pulls 53 binary asteroids 53 KH #D 53 IRC +# 53 Brownian motion 53 Gamma rays 53 dipole moment 53 theoretical particle 53 Saturn moon Enceladus 53 antiprotons 53 phonons 53 faint galaxies 53 magnetic excitations 53 astrophysicists 53 graphene sheet 53 ecliptic plane 53 spatially resolved 53 proto cluster 53 electrons orbiting 53 diffracted 53 tau neutrinos 53 constellation Cygnus 53 Gravitational lensing 52 hemoglobin molecules 52 asthenosphere 52 constellation Andromeda 52 collimated 52 meteoritic material 52 spheroidal 52 cometary dust 52 silicate mantle 52 starbursts 52 airglow 52 Ulysses spacecraft 52 photons 52 faraway galaxies 52 water vapor condenses 52 shorter wavelengths 52 polaritons 52 cosmic ray protons 52 galactic 52 reionization 52 Gemini constellation 52 constellation Perseus 52 quasiparticle 52 Saturnian moons 52 outflowing 52 Einstein theory 52 ecliptic 52 Perseus cluster 52 mesosphere 52 anisotropy 52 gamma ray photons 52 CAIs 52 absorbs photons 52 Quadrantid 52 distant supernovas 52 Kepler #b 52 Bose Einstein Condensate 52 wavefronts 52 Gamma ray bursts 52 quantum particle 52 RY Sagittarii 52 radiative 52 alpha particles 52 plasmons 52 infrared wavelengths 52 prograde 52 YORP effect 52 Distant galaxies 52 linearly polarized 52 COROT 52 Supermassive black 52 Perseus Cluster 52 starquakes 52 asterism 52 Bose Einstein condensate 52 magnetization 52 photoemission 52 Comet Halley 52 CoRoT 9b 52 Hyades cluster 52 spicules 52 Epsilon Indi 52 cosmological theories 52 PSR B# +# 52 planets circling 52 Cancri e 52 magnetized plasma 52 Syrtis Major 52 stellar seismology 52 muons 52 CMEs 52 cosmic ray 52 Type Ic supernova 52 periodic oscillations 52 Mpc 52 downwelling 52 atomic particles 52 constellation Eridanus 52 Cherenkov radiation 52 planets Uranus 52 sundog 52 baryons 52 Hubble observations 52 Kuiper belt object 52 chlorophyll molecules 52 orbital angular momentum 52 star Proxima Centauri 52 antineutrinos 52 polariton 52 occultations 52 Pleiades cluster 52 gluon 52 pseudogap 52 Crab Pulsar 52 magnetic flux 52 Yarkovsky effect 52 diffuse aurora 52 antiparticles 52 substorms 52 electron spins 52 astronomers 52 constellation Aries 52 comet orbit 52 extrasolar planetary 52 interstellar magnetic 52 Comet Hartley 2 52 spacecraft flyby 52 ionized 52 submillimeter galaxies 52 smallest extrasolar planet 52 PZ Tel 52 gamma ray observatory 52 Orion Nebula 52 planet Gliese #c 52 singularities 52 surface plasmons 52 baryonic matter 52 nebulas 52 IRAS 4B 52 Phaethon 52 Saturnian system 52 Saturn outermost 52 water vapor 52 high redshift galaxies 52 brightest supernova 52 galactic nucleus 52 gibbous 52 Swift Tuttle 52 advection 52 Phoebe orbits 51 olivine 51 bosonic 51 Eagle Nebula 51 plagioclase 51 Cepheid variables 51 TGFs 51 Einstein cosmological constant 51 extrasolar planetary systems 51 transiting planets 51 gamma ray bursts GRBs 51 hydrogen atom 51 silicon atoms 51 Comet Elenin 51 polarimetry 51 SNR #-#.# 51 spherules 51 constellation Lyra 51 V# Sgr 51 magnetic dipole 51 constellation Aquila 51 blackholes 51 Circinus X 1 51 superbubble 51 meridional flow 51 lithosphere 51 diamagnetic 51 super Earths 51 Magnetic reconnection 51 Rydberg atom 51 MG J# +# 51 starlight 51 De Pontieu 51 crystal lattice 51 relativistic speeds 51 surface plasmon 51 Encke gap 51 electron beams 51 supercontinent 51 isotropic 51 Doppler shifts 51 optical spectra 51 hematite mineral 51 super nova 51 asteroid 51 terahertz waves 51 coronal holes 51 HAT P 51 neutralino 51 antiferromagnetic 51 gravitational tidal 51 molten rock 51 heavily cratered 51 planet Gliese #g 51 cosmic ray flux 51 mu Arae 51 aether 51 galactic cannibalism 51 Astrophysical 51 detect gravitational waves 51 habitable worlds 51 proton proton collisions 51 NASA Chandra 51 visible wavelengths 51 Coma cluster 51 protons 51 hydroxyl molecules 51 Tauri Sb 51 Proxima Centauri 51 superstrings 51 Galilean satellites 51 Type Ic supernovae 51 Ithaca Chasma 51 inner asteroid belt 51 matter antimatter asymmetry 51 gamma ray 51 magma 51 Veil Nebula 51 electron neutrino 51 Saturn Enceladus 51 linearly polarized light 51 cosmological constant 51 ferromagnet 51 non baryonic 51 galaxy redshift 51 retrograde orbits 51 dust enshrouded 51 GRB #A 51 dye molecules 51 electron pairs 51 neutrons 51 Casimir cavity 51 quantum superposition 51 rubidium vapor 51 Solar System 51 optical wavelengths 51 Beehive Cluster 51 finely dispersed 51 innermost planet 51 titania nanotubes 51 millimeter wavelength 51 sulphate particles 51 spectral fingerprint 51 colliding protons 51 filament 51 molten droplets 51 photons particles 51 dusty disks 51 rubidium atom 51 spectroscopic 51 photon energies 51 ray Space Telescope 51 exoplanets planets 51 Jupiter Saturn Uranus 51 magnetic 51 RHESSI 51 NASA Voyager spacecraft 51 gravitons 51 starlike 51 orbitals 51 massless particles 51 supersolid 51 diffraction grating 51 microscopic bubbles 51 proto planetary 51 emitted photons 51 Tycho supernova remnant 51 Magellanic Stream 51 convection currents 51 GALEX 51 solar prominences 51 #gy 51 star Spica 51 Saturn outermost ring 51 Comet Lulin 51 outer planets 51 rubidium atoms 50 silicate minerals