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(Click for frequent words.) 64 photosphere 62 solar corona 62 spicules 62 X ray emission 62 sun corona 60 ionized gas 60 magnetosphere 59 protoplanetary disk 59 quasar 59 nebula 59 protostar 59 chromosphere 59 supernova remnant 58 galaxies 58 planetary nebula 58 accretion disk 58 starburst galaxy 58 nebular 58 Enceladus 58 sodium atoms 58 circumstellar disk 58 galaxy cluster 57 Saturn rings 57 planetary nebulae 57 supergiant star 57 SN #A 57 ionised 57 filament 57 RS Ophiuchi 57 X ray emitting 57 ejecta 57 Earth magnetosphere 57 gamma rays 56 spiral galaxies 56 quasars 56 filaments 56 galactic disk 56 Saturn magnetosphere 56 comet 56 infall 56 supernova explosion 56 neutron star 56 emission nebula 56 distant galaxies 56 interstellar clouds 56 emits X rays 56 solar nebula 55 circumstellar 55 blue supergiant 55 Eta Carinae 55 Orion Nebula 55 coronal mass ejections 55 magnetic fields 55 magnetar 55 red supergiant 55 constellation Cassiopeia 55 magnetic reconnection 55 Rosette Nebula 55 Jupiter magnetosphere 55 magnetotail 55 comet tail 55 interstellar medium 55 prominences 55 V# Mon 55 elliptical galaxy 55 relativistic particles 55 nebulae 55 gamma ray emission 55 Red Rectangle 54 galaxy 54 Epsilon Eridani 54 HD#b 54 gamma ray burst 54 supernova remnants 54 lightwaves 54 cosmic microwave background 54 X ray pulses 54 supernova explosions 54 galaxy clusters 54 ultraviolet wavelengths 54 emit X rays 54 Bug Nebula 54 magnetospheric 54 Mimas 54 filamentary 54 heliosphere 54 stellar occultation 54 spiral galaxy 54 SN #gy 54 CMEs 54 galaxy NGC 54 exosphere 54 magnetic flux 54 X ray binaries 54 comets 54 X ray wavelengths 54 elongated orbits 54 helium atoms 54 moon Io 54 Iapetus 54 galactic halo 54 Gamma rays 54 supernovae 54 supernova 54 gravitational interaction 53 galactic cosmic rays 53 ionized gases 53 superfluid 53 GRB #B 53 Helix Nebula 53 Omega Centauri 53 constellation Virgo 53 GRBs 53 barred spiral galaxy 53 planet orbits 53 Butterfly Nebula 53 gamma rays emitted 53 Comet Holmes 53 Andromeda galaxy 53 moon Enceladus 53 coronal mass ejections CMEs 53 supermassive black hole 53 Wolf Rayet star 53 planets orbits 53 ionized hydrogen 53 protoplanetary disks 53 blazar 53 Alfven waves 53 luminous galaxies 53 Upsilon Andromedae 53 water vapor 53 outer layers 53 torus 53 dwarf galaxy 53 KH #D 53 globular cluster 53 Planetary nebulae 53 distant quasar 53 luminosity 53 AB Aurigae 52 elliptical galaxies 52 HD# [002] 52 Bok globules 52 KBOs 52 ionize 52 galaxy M# [002] 52 Cat Paw Nebula 52 solar flares 52 AGNs 52 chondrules 52 Corot 9b 52 accretion disks 52 novae 52 glows brightly 52 Gravitational waves 52 Saturn outermost 52 particles 52 HL Tau 52 comet nucleus 52 exoplanet orbiting 52 Beta Pictoris 52 crystalline silicates 52 spiral galaxy NGC 52 HD #b [002] 52 neutron stars 52 coronal loops 52 Type Ia supernovae 52 Martian atmosphere 52 metallicity 52 ionised gas 52 Fomalhaut b 52 VY Canis Majoris 52 Type 1a supernovae 52 spatially resolved 52 Milky Way 52 Coma Cluster 52 ultraviolet UV light 52 transiting planet 52 gamma ray bursts 52 intrinsic brightness 52 brown dwarfs 52 Orion nebula 52 auroral 52 icy moons 52 substorm 52 coronagraph 52 occultations 52 WASP #b 52 interstellar dust 52 celestial sphere 52 Milky Way Galaxy 52 polar vortex 52 X ray binary 52 visible wavelengths 52 Oort Cloud 52 protostars 52 GJ #b [001] 52 Wolf Rayet stars 51 ionized particles 51 cosmic rays 51 Venusian atmosphere 51 energetic electrons 51 Neutron stars 51 gravitationally 51 magnetized plasma 51 type Ia supernova 51 Kuiper belt 51 Crab Nebula 51 J# +# [002] 51 cometary debris 51 Saturnian 51 Jupiter moon Io 51 nuclei 51 Oort cloud 51 cosmological distances 51 globular clusters 51 coronal mass ejection 51 Great Conveyor Belt 51 foreground galaxy 51 reflection nebula 51 silicate minerals 51 IRAS #-# 51 constellation Aquarius 51 comet Tempel Tuttle 51 GRB # 51 gibbous 51 Ultraviolet light 51 millisecond pulsar 51 asteroidal 51 stellar nurseries 51 type Ia supernovae 51 energetic gamma rays 51 constellation Ursa Major 51 RS Oph 51 XMM Newton 51 shorter wavelengths 51 diffraction pattern 51 diffracted 51 Pegasi 51 pulsar 51 Milky Way galaxy 51 circumstellar disks 51 coronal holes 51 Proxima Centauri 51 starburst galaxies 51 subsurface ocean 51 Type Ia 51 supermassive black holes 51 Saturnian moon 51 interstellar cloud 51 sundog 51 Type Ia supernova 51 moon Mimas 51 BP Psc 51 electron neutrinos 51 constellation Hercules 51 spheroidal 51 muon 51 GQ Lupi 50 constellation Centaurus 50 spherical halo 50 interstellar dust clouds 50 planet orbiting 50 Supernovae 50 jovian 50 photometer 50 solar prominences 50 galactic bulge 50 filamentary structure 50 galaxy formation 50 moonlets 50 millisecond pulsars 50 gaseous planet 50 Supernova #A 50 brown dwarf 50 active galactic nuclei 50 planetesimals 50 planets moons 50 active galactic nucleus 50 potassium atoms 50 sunlike stars 50 Saturn moon Enceladus 50 blazars 50 submillimeter 50 cosmic ray particles 50 dense clumps 50 protoplanets 50 Veil Nebula 50 fainter objects 50 heliospheric 50 Antennae Galaxies 50 globular star 50 Gondolo 50 noctilucent clouds 50 high redshift galaxies 50 elliptical galaxy NGC 50 sunspots 50 transiting exoplanet 50 magma ocean 50 heliosheath 50 Andromeda Galaxy 50 protoplanet 50 comets orbiting 50 antiferromagnets 50 globulars 50 supernovas 50 topological defects 50 Eagle Nebula 50 outermost layers 50 atoms 50 luminosities 50 astronomical objects 50 ions 50 particles WIMPs 50 GJ#b 50 proton 50 spacecraft flyby 50 Tycho supernova remnant 50 polaritons 50 martian atmosphere 50 HM Cancri 50 nebulosity 50 neutrinos 50 diffuse aurora 50 coronal heating 50 microquasar 50 diffract 50 ringed planet 50 collisional 50 Cosmic Microwave Background 50 Galilean moons 50 silicate dust 50 interacting galaxies 50 helium nuclei 50 sunlike 50 baryonic 50 galaxy M# [001] 50 Epsilon Aurigae 50 orbits 50 red supergiants 50 constellation Draco 50 meteoroids 50 P/# A2 50 Sagittarius B2 50 ionosphere 49 nanocrystals 49 ionization 49 interstellar space 49 gravitational radiation 49 particle acceleration 49 proplyds 49 airglow 49 nucleosynthesis 49 infrared wavelengths 49 infalling 49 AU Mic 49 Comet Hale Bopp 49 toroid 49 Comet Tempel Tuttle 49 Cepheids 49 Solar System 49 gravitational interactions 49 Arches Cluster 49 Geminga 49 ionizes 49 planet HD #b 49 dimers 49 Type Ia supernovas 49 observable universe 49 extrasolar 49 subatomic particles 49 meridional flow 49 spectral measurements 49 ionized 49 quasicrystal 49 gravitational lensing 49 distant galaxy 49 hot Jupiters 49 relativistic jets 49 velocity dispersion 49 Virgo Cluster 49 galactic cosmic ray 49 planet WASP #b 49 Keck Interferometer 49 colliding galaxies 49 SNR #-#.# 49 hydrogen nuclei 49 Tauri Sb 49 Alfvén waves 49 mesosphere 49 Hot Jupiters 49 spectra 49 spacetime 49 pions 49 R Coronae Borealis 49 Comet Lulin 49 GRB# 49 coronal loop 49 Large Magellanic Cloud 49 eccentric orbits 49 GJ #b [002] 49 mantle plumes 49 HII regions 49 post perovskite 49 redshifted 49 elongated orbit 49 silicon monoxide 49 Solar flares 49 vaporisation 49 star Beta Pictoris 49 rocky planets 49 cirrus cloud 49 blue straggler 49 Cygnus X 49 magnetars 49 moonlet 49 atomic particles 49 orbital eccentricity 49 atomic nuclei 49 distant quasars 49 Jovian moon 49 Tarantula Nebula 49 colloidal particles 49 nanorod 49 hydrogen atoms 48 planet magnetosphere 48 Voorwerp 48 coronal 48 photon energies 48 exoplanetary 48 Higgs bosons 48 Ultraviolet Imaging Spectrograph UVIS 48 earthlike planets 48 ionise 48 innermost planet 48 Saturnian moons 48 bosonic 48 ESO PR 48 electron bunches 48 Spitzer infrared spectrograph 48 IR wavelengths 48 IRC +# 48 Orion constellation 48 constellation Ophiuchus 48 Encke gap 48 Cosmic Microwave Background CMB 48 Magnetic Imager HMI 48 nanomesh 48 glow brightly 48 nebula NGC 48 astrophysical 48 VLTI 48 Phoebe orbits 48 comet Hale Bopp 48 Tempel 1 48 spherical 48 SMBH 48 millimeter wavelength 48 Trapezium 48 starquakes 48 CoRoT satellite 48 Saturn moon Iapetus 48 Hanny Voorwerp 48 cumulus cloud 48 Mott insulator 48 extrasolar planetary systems 48 rotating neutron stars 48 photoemission 48 constellation Pegasus 48 gravitational lens 48 electrically conducting 48 zodiacal light 48 aerosol particles 48 cosmic gamma rays 48 weakly interacting 48 trans Neptunian objects 48 G#.# +#.# 48 x ray beam 48 moons orbiting 48 Trifid Nebula 48 merging galaxies 48 SN#A 48 planet Uranus 48 comet orbit 48 Maunder minimum 48 intramolecular 48 constellation Leo 48 planets 48 volcanic plumes 48 Rydberg atom 48 Milky Way halo 48 planets orbiting 48 star Proxima Centauri 48 cosmos 48 supersymmetric particles 48 filamentary structures 48 Comet Hartley 2 48 Earth ionosphere 48 neutrino 48 Jupiter Ganymede 48 strange quark 48 gamma ray 48 UV photons 48 Zeta Ophiuchi 48 diffraction patterns 48 constellation Lyra 48 fainter 48 moons 48 sunspot cluster 48 nanomagnets 48 infrared wavelength 48 suns 48 Galilean satellites 48 dwarf galaxies 48 magnetic polarity 48 terahertz waves 48 retrograde orbit 48 supersolid 48 kelvin 48 electrons 48 chemical composition 48 Jovian planets 48 antimatter particles 48 distant supernovae 48 ultraviolet light 48 TrES 4 48 Betelgeuse 48 WIMPs 48 quark gluon plasma 48 XTE J# 48 tubules 48 photochemical reactions 48 radiative 48 Comet Halley 48 spherically symmetric 48 Mpc 48 Chi Cygni 48 constellation Perseus 48 Fermi telescope 48 Pleiades star 48 BLG #Lb 48 planetary orbits 48 giant elliptical galaxy 48 meteoritic material 48 SOHO spacecraft 48 martensite 48 gravity warps 48 dye molecules 48 Kuiper Belt 48 extrasolar planet 47 orbital resonance 47 Lyman alpha 47 Ring Nebula 47 spectral characteristics 47 comet McNaught 47 faraway galaxies 47 tholins 47 Churyumov Gerasimenko 47 prograde 47 eclipsing binary 47 Io Europa 47 microcavity 47 protons 47 albedo reflectivity 47 Saturn Enceladus 47 Quadrantid meteor shower 47 muon neutrino 47 arcminutes 47 Small Magellanic Cloud 47 ultracold molecules 47 electron orbitals 47 Cepheid variable 47 outer corona 47 supergiant stars 47 planetary transits 47 unaided eye 47 gravitationally bound 47 Carina Nebula 47 helium ions 47 moon Titan 47 CMB radiation 47 RHESSI 47 perihelion 47 photons 47 alpha particles 47 Swift Tuttle 47 substorms 47 Gal Yam 47 microlens 47 Bose Einstein condensate 47 ULIRGs 47 aurorae 47 VHE gamma rays 47 zodiacal dust 47 ultraviolet photons 47 constellation Eridanus 47 RXTE 47 NGC# 47 lensing galaxy 47 electron beams 47 infrared radiation 47 Tempel Tuttle 47 Distant galaxies 47 thermonuclear reactions 47 afterglows 47 HD# [005] 47 Jupiter Uranus 47 laser pulse 47 astronomers 47 cosmic ray 47 Orionids 47 CMB photons 47 chromophore 47 exoplanets orbiting 47 neutralinos 47 planets circling 47 proto planetary disk 47 lunar crust 47 GRB #A 47 superluminal 47 arcsecond 47 globular proteins 47 Valles Marineris 47 accreting 47 Olympus Mons 47 icy comets 47 wavelengths 47 Evolution Explorer 47 trimers 47 X ray telescopes 47 submillimetre wavelengths 47 gamma ray observatory 47 Kuiper Belt objects 47 IRAS 4B 47 Gliese #e 47 solar radii 47 planet Gliese #c 47 Orionid meteors 47 supernovae explosions 47 galactic mergers 47 polar craters 47 Crab Pulsar 47 SN #D 47 positrons 47 electron density 47 Earth magnetotail 47 Gravitational lensing 47 terrestrial planets 47 keV 47 chemical reactions 47 baryon 47 TrES 47 nucleation 47 cryostat 47 plasmon 47 cometary 47 axions 47 circular orbits 47 constellation Carina 47 proto galaxies 47 Explorer WISE 47 oxygen ions 47 Hubble Space Telescope HST 47 superconductivity 47 Methone 47 relativistic protons 47 SN #C 47 dimer 47 GeV 47 Bullet Cluster 47 planets orbiting stars 47 detect gamma rays 47 Scorpii 47 impactors 47 atomic lattice 47 gravitational waves 47 Bose Einstein Condensate 47 reflectance 47 interstellar dust grains 47 HD #b [001] 47 polarimetry 47 particle 47 Lagoon Nebula 46 Cepheid variables 46 rubidium atoms 46 synchronous polar 46 submillimeter wavelengths 46 linearly polarized 46 constellation Andromeda 46 dynamical processes 46 TGFs 46 photons emitted 46 meteoroid 46 harmful ultraviolet 46 molecules 46 organic molecules 46 ferromagnet 46 basaltic lava 46 absorbs ultraviolet 46 colloidal crystals 46 planetary embryos 46 tidal tails 46 supermassive 46 Saturn moons 46 molten rock 46 dusty disks 46 hydroxyl molecules 46 lowermost mantle 46 star Gliese 46 gamma ray flares 46 Weakly Interacting Massive Particles 46 Kuiper belt objects 46 pulsars 46 zinc ions 46 radiative cooling 46 BLG #L 46 Galaxy Evolution 46 neutral mass spectrometer 46 Coronal Mass Ejections 46 paramagnetic 46 graphene membranes 46 polariton 46 Henize #-# 46 runaway thermonuclear 46 crystal lattices 46 permanently shadowed craters 46 carbon cenospheres 46 haloes 46 vortices 46 vibrational modes 46 Pleiades cluster 46 Sagittarius dwarf galaxy 46 basaltic rocks 46 ultraviolet radiation emitted 46 constellation Taurus 46 Io 46 emission spectroscopy 46 YORP effect 46 molecule 46 nanorings 46 Ozone O3 46 gaseous planets 46 protoplanetary 46 -# ° C [001] 46 linearly polarized light 46 Kepler #b 46 lava flows 46 cluster NGC 46 icosahedral 46 Gamma ray bursts 46 starburst 46 UVIS 46 polarizing filters 46 globular 46 backscattered 46 noble gases 46 Candor Chasma 46 galactic cores 46 hadron 46 constellation Sagittarius 46 spectroscopic observations 46 extragalactic 46 ecliptic 46 THz radiation 46 redshift 46 ultraviolet laser 46 helium atom 46 Caloris 46 reionization 46 Magnetars 46 Bose Einstein condensation 46 Earthlike 46 Adam Riess 46 Carina constellation 46 Goldilocks planet 46 graphene sheet 46 Mg Fe 46 planetary nebulas 46 cirrus 46 CoRoT 7b 46 Cassini ion 46 sunspot 46 aerosols 46 Saturn Cassini 46 photochemistry 46 Magellanic Clouds 46 magnetic monopoles 46 sunlike star 46 constellation Cepheus 46 PZ Tel 46 asteroids orbiting 46 periodic dimming 46 Coronal mass 46 protoplanetary discs 46 anisotropy 46 PKS #-# 46 nanocages 46 molten 46 porphyrin 46 tidal bulge 46 evanescent waves 46 MeV 46 thermal decomposition 46 coronal hole 46 millimeter wavelengths 46 inhomogeneous 46 liquid droplets 46 giant elliptical galaxies 46 particles emitted 46 Orionid 46 copper oxide superconductors 46 toroidal 46 supermassive stars 46 ultracold atoms 46 Sunspots 46 SMBHs 46 Corot 7b 46 waning gibbous 46 orbitals 46 celestial bodies 46 lithium atoms 46 Cosmic rays 46 galaxy NGC# 46 Higgs particle 46 celestial object 46 lamellar 46 reddish orange hue 46 silicates 46 rotating neutron 46 distant galaxy clusters 46 Herbig Haro 46 asthenosphere 46 periodicities 46 molten magma 46 X ray beams 46 Magellanic Stream 46 Uranus 46 COROT 46 hadrons 46 galactic clusters 46 dynamical 46 asteroids comets 46 Heliospheric Observatory SOHO 46 neutrons 46 supernova SN 46 QCLs 46 quantum tunneling 46 planet transits 46 Rayleigh scattering 46 dermal layers 45 extrasolar planet HD #b 45 spherical particles 45 X ray beam 45 gamma ray bursts GRBs 45 inhomogeneities 45 orbiting planets 45 maser emission 45 synchrotron emission 45 branes 45 planet TrES 45 optical lattices 45 GALEX 45 Hawking radiation 45 WFPC2 45 tau neutrinos 45 ESO VLT 45 sterile neutrino 45 MG J# +# 45 Solar TErrestrial RElations Observatory 45 Super Earths 45 gravitational microlensing 45 Pluto Charon 45 moon Iapetus 45 sulfur isotope 45 hydrogen helium 45 punctate 45 NASA STEREO 45 planet HD#b 45 antiprotons 45 rubidium vapor 45 nucleobases 45 antiproton 45 galaxies collide 45 Kuiper Belt Objects 45 globular cluster M# 45 diffraction grating 45 hydrosphere 45 collimated 45 photolysis 45 magnetopause 45 Dumbbell Nebula 45 meson 45 ultraviolet wavelength 45 upper troposphere 45 multiwalled carbon nanotube 45 oxygen atoms 45 constellation Auriga 45 Cherenkov radiation 45 HIP #b 45 blackbody 45 ultraviolet 45 IBEX spacecraft 45 Fomalhaut 45 microlensing events 45 silica particles 45 optical wavelengths 45 #P/Holmes 45 cesium atom 45 scanning electron microscopes 45 Halley comet 45 photons particles 45 graphite whiskers 45 masers 45 droplets 45 outer layer 45 photolyase 45 cobalt atom 45 femtosecond 45 magnetic excitations 45 brightest supernova 45 nova 45 meteors 45 X ray photons 45 femtoseconds 45 RY Sagittarii 45 smoggy atmosphere 45 umbra 45 Corona Australis 45 Ultra violet 45 V# Sgr 45 BP Piscium 45 corona discharge 45 infrared ultraviolet 45 1μm 45 habitable zones 45 Milankovitch cycles 45 cometary material 45 Muchachos Observatory 45 DEM L# 45 extrasolar planets 45 astrophysical phenomena 45 laser pulses 45 hydrogen isotopes 45 CoRoT #b 45 tetramers 45 sized planets orbiting 45 radially outward 45 weak gravitational lensing 45 magnesium ion 45 rotational axis 45 ferric oxides 45 APXS 45 Trojan asteroids 45 circumstellar dust 45 icy moon Enceladus 45 halos 45 Saturn equinox 45 Fornax cluster 45 Hydrates 45 surface plasmon 45 uncharged particles 45 unconventional superconductivity 45 cm -1 45 aurora 45 quasicrystals 45 polar stratospheric 45 quantum particles 45 plasmasphere 45 nanobubbles 45 collimator 45 intracluster 45 Descent Imager Spectral Radiometer 45 sterile neutrinos 45 convective 45 constellation Cygnus 45 electron positron 45 monochromator 45 spectroscopically 45 Circinus X 1 45 Ulysses spacecraft 45 SUSY 45 pseudogap 45 ultraluminous galaxy 45 Astronomers 45 Syrtis Major 45 spicule 45 spectroscopic 45 greenish glow 45 nanobelts 45 fluorescent nanoparticles 45 spinning pulsar 45 dopant atoms 45 crystal lattice 45 exosolar planets 45 electron positron pairs 45 Earth radii 45 semiconducting material 45 chromophores 45 quantum mechanically