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(Click for frequent words.) 62 colliding galaxies 62 starburst 62 nebulae 61 Type 1a supernovae 61 supernovae explosions 60 solar prominences 59 Supernovae 59 starburst galaxy 59 accretion disks 59 ionized hydrogen 58 KH #D 58 planetary nebula 58 galactic cores 58 X ray wavelengths 58 cosmological distances 58 circumstellar dust 58 interstellar dust clouds 57 emission nebula 57 sunbursts 57 proplyds 57 active galactic nuclei 57 glowing orbs 57 gamma ray flares 57 planetary nebulae 57 galaxies 57 Type Ia 57 starlike 57 comet Tempel Tuttle 57 ionised gas 57 Lagoon Nebula 56 luminous galaxies 56 X ray emission 56 supergiant star 56 starburst galaxies 56 globulars 56 Orion Nebula 56 nebulosity 56 nebulas 56 blazars 56 merging galaxies 56 galactic halo 56 gamma ray emission 56 supermassive 56 novae 56 aurorae 56 HII regions 56 circumstellar 56 red supergiants 56 X ray pulses 55 RS Ophiuchi 55 nebula 55 protostars 55 interstellar clouds 55 Trifid Nebula 55 Orion nebula 55 prominences 55 quasars 55 hypernova 55 Trifid 55 blue supergiant 55 elliptical galaxy 55 Carina Nebula 55 type Ia supernovae 55 Gamma ray bursts 55 nebular 55 coronal loops 55 AGNs 55 planetary nebulas 55 Helix Nebula 55 Planetary nebulae 55 Rosette Nebula 55 nucleosynthesis 54 gamma ray emitting 54 haloes 54 GRBs 54 planets comets 54 IRAS #-# 54 Wolf Rayet stars 54 VY Canis Majoris 54 SN #A 54 gravitational radiation 54 distant galaxies 54 auroral 54 brightnesses 54 interacting galaxies 54 afterglows 54 cluster NGC 54 exoplanets orbiting 54 filamentary structure 54 energetic electrons 54 tidal tails 54 eclipsing binary 54 giant elliptical galaxy 54 supernova explosions 54 relativistic protons 54 Virgo Cluster 54 gamma ray bursts GRBs 54 blazar 54 supernovae 54 auroral displays 54 glowing brightly 54 Cepheid variables 54 protoplanetary discs 54 relativistic jets 54 Comet Holmes 53 reflection nebula 53 ghostly glow 53 energetic gamma rays 53 Crab Nebula 53 supernova remnants 53 dusty cocoons 53 V# Mon 53 asterism 53 coronal mass ejections CMEs 53 spiral galaxies 53 Dumbbell Nebula 53 Epsilon Aurigae 53 faraway galaxies 53 planets moons 53 luminosities 53 spheroidal 53 oppositely directed 53 Type Ia supernova 53 Carina constellation 53 Pleiades star 53 dense clumps 53 Pleiades cluster 53 infall 53 infalling 53 galactic mergers 53 nebula NGC 53 starlight 53 galactic collisions 53 Eagle Nebula 53 SMBH 53 constellation Cassiopeia 53 globular clusters 53 planetoids 53 supergiant stars 52 accretion disk 52 Red Rectangle 52 foreground galaxy 52 galaxy NGC 52 microquasar 52 Tarantula Nebula 52 Kuiper belt objects 52 periodic dimming 52 jovian 52 orbiting planets 52 barred spiral galaxy 52 interstellar cloud 52 backscattered 52 intracluster 52 galaxy M# [002] 52 MG J# +# 52 intrinsic brightness 52 Magnetars 52 reddish glow 52 Supernovas 52 pinwheel shaped 52 galaxies nebulae 52 sunlike 52 lightshow 52 dust motes 52 Galilean moons 52 supernova explosion 52 stellar nurseries 52 Trapezium 52 orangey yellow 51 protoplanetary disk 51 elliptical galaxies 51 extragalactic 51 Ring Nebula 51 brightest meteors 51 X ray binary 51 Doppler shifts 51 inky sky 51 Hanny Voorwerp 51 galaxies collide 51 starquakes 51 volcanic moon Io 51 halos 51 suns 51 electron positron pairs 51 Type Ia supernovae 51 V# Puppis 51 blinding flashes 51 Gamma ray 51 lenticular clouds 51 filamentary structures 51 femtosecond timescale 51 Gamma ray bursts GRBs 51 zodiac constellations 51 supermassive black hole 51 supernovas 51 Orion constellation 51 spherically symmetric 51 distant galaxy 51 globular cluster M# 51 elongated orbits 51 ionized gases 51 Neutron stars 51 galaxy 51 gibbous 51 astronomical objects 51 cosmic phenomena 51 Henize #-# 51 whorls 51 lightening bolts 51 dense neutron stars 51 circumstellar disk 51 gravitational pulls 51 SMBHs 51 moonlets 51 comet tail 51 Hot Jupiters 51 electron neutrinos 51 sundog 51 proto galaxies 51 Geminids meteor shower 51 periodic oscillations 51 orbs 51 supermassive black holes 51 glows brightly 50 dust enshrouded 50 quasar 50 coronal mass ejections 50 constellation Aquarius 50 Cherenkov radiation 50 sunlike stars 50 circumstellar disks 50 Jupiter Uranus 50 planets orbits 50 umbels 50 iridescent colors 50 reddish orange color 50 type Ia supernova 50 spacecraft flyby 50 coronal holes 50 Cepheids 50 spiral galaxy M# 50 Wolf Rayet star 50 dwarf spheroidal galaxies 50 galactic clusters 50 constellation Draco 50 Cat Paw Nebula 50 surface plasmon 50 volcanic lava flows 50 acorn shaped 50 helium nuclei 50 protostar 50 periodicities 50 cosmic 50 neon tubes 50 ionized gas 50 SN #gy 50 galaxy M# [001] 50 SNR #-#.# 50 supermassive stars 50 tealight candles 50 Type 1a supernova 50 gravitational tides 50 icy moons 50 axions 50 Omega Nebula 50 magnetars 50 distant quasars 50 neutron stars 50 Globular clusters 50 greenish glow 50 GRB #B 50 Andromeda galaxy 50 Comet Tempel Tuttle 50 antimatter particles 50 X ray afterglow 50 Epsilon Eridani 50 Type Ia supernovas 50 elliptical shapes 50 giant elliptical galaxies 50 zodiacal light 50 HL Tau 50 star Beta Pictoris 50 Monoceros 50 moons 50 lensing galaxy 50 emit X rays 50 Milky Way halo 50 lunar craters 50 ionized particles 50 Kuiper Belt Objects 50 protoplanetary disks 50 silicon monoxide 50 constellation Virgo 50 red supergiant 50 thermonuclear reactions 50 Upsilon Andromedae 50 supernova remnant 50 Saturn magnetosphere 50 spacetime 50 optical spectra 49 visible wavelengths 49 Arches Cluster 49 magnetic monopoles 49 Bok globules 49 Spiral galaxies 49 distant suns 49 constellation Ursa Major 49 branes 49 occultations 49 Saturnian moon 49 dwarf galaxy 49 globular cluster 49 laser beams 49 Dust devils 49 mineral hematite 49 helium atoms 49 millisecond pulsars 49 Gamma rays 49 twin suns 49 cometary debris 49 X ray emitting 49 Orionids 49 spherical 49 Beehive Cluster 49 novas 49 rainbow hues 49 spiral galaxy NGC 49 RRATs 49 Fornax cluster 49 solar corona 49 constellation Coma Berenices 49 Milky Way 49 Digitized Sky Survey 49 spiral galaxy 49 chondrules 49 infalling gas 49 chromosphere 49 sunbeams 49 SN#A 49 Small Magellanic Cloud 49 blue straggler 49 ULIRGs 49 magnetar 49 comet Hale Bopp 49 floating orbs 49 Bug Nebula 49 relativistic particles 49 redshifts 49 Eta Carinae 49 Saturn moons 49 planets 49 Earths orbiting 49 Coma cluster 49 Twinkling lights 49 supernova 49 Sagittarius B2 49 auroral activity 49 hadrons 49 Higgs bosons 49 CoRoT #b 49 ENAs 49 RS Oph 49 moon Io 49 galaxy clusters 49 blobs 49 interstellar dust 49 distant supernovae 49 globular star 49 astrophysical 49 comets asteroids 49 comets 49 emits X rays 49 Quadrantid meteor shower 49 pinks yellows 49 active galactic nucleus 49 coronal loop 49 galactic disk 49 meteoroid impacts 49 varying hues 49 distant quasar 49 substorm 49 IR wavelengths 49 Helix nebula 49 Saturn Enceladus 49 GRB# 49 X ray binaries 49 constellation Lyra 48 Dwarf galaxies 48 fiery sunsets 48 Meteor showers 48 galactic alignment 48 noctilucent clouds 48 photosphere 48 constellation Scorpius 48 crystalline silicates 48 infrared photons 48 V# Sgr 48 Perseid meteor 48 star clusters nebulae 48 gamma rays emitted 48 magnetospheric 48 Coma Cluster 48 cosmic cannibal 48 superbright 48 pinkish purple 48 telescope eyepiece 48 filamentary 48 tubular flowers 48 bluish hue 48 celestial objects 48 proto planetary disks 48 radial velocity technique 48 ultraviolet wavelengths 48 vortices 48 constellation Hercules 48 neutron star 48 retrograde orbits 48 yellowish hue 48 Coronal mass 48 aurora 48 blindingly bright 48 gaseous planet 48 Leonids 48 luminosity 48 globular 48 Saturn outermost ring 48 transiting planet 48 Elliptical galaxies 48 spinning neutron stars 48 lightwaves 48 galactic bulge 48 Eta Carina 48 Bose Einstein condensates 48 constellation Andromeda 48 asteroidal 48 detect gamma rays 48 proto cluster 48 Seyfert galaxies 48 sun glints 48 solar nebula 48 Milky Way Galaxy 48 protoplanet 48 VHE gamma rays 48 SDSS II 48 phosphorescence 48 CMB radiation 48 Delta Cephei 48 electron flux 48 gravitationally bound 48 gibbous moon 48 Lyman alpha 48 Leonid meteors 48 refractors 48 Reiner Gamma 48 lightshows 48 moons circling 48 nautilus shell 48 maser emission 48 vortexes 48 Corot 9b 48 diffuse aurora 48 airbursts 48 Sombrero Galaxy 48 Chi Cygni 48 HM Cancri 48 purplish brown 48 Gravitational waves 48 gravitationally lensed 48 supersymmetric particles 48 Geminga 48 yellowish orange 48 constellation Carina 48 reddish hues 48 brown dwarfs 48 earthlike planets 48 planets constellations 48 Milky Way galaxy 48 spatially resolved 48 Puppis 48 superstrings 48 geometrical shapes 48 emitted photons 48 R Coronae Borealis 48 Orionid 48 Omega Centauri 48 astrophysical phenomena 48 galaxy redshift 48 faraway galaxy 48 Jupiter Saturn 48 retroreflector 48 WHIM 48 starscape 48 ESO PR 48 gravity warps 48 Eta Aquarids 48 heliospheric 48 Zeta Ophiuchi 47 retrograde orbit 47 graceful curving 47 superbubble 47 protoplanets 47 Neptune Uranus 47 sulfurous steam 47 Comet Hartley 2 47 Stephan Quintet 47 Kuiper belt 47 planets asteroids 47 rotating neutron stars 47 strobed 47 twinkling stars 47 Supernova #A 47 diffraction patterns 47 moonbeams 47 Perseus Cluster 47 extrasolar 47 baryon 47 planetary transits 47 diffraction pattern 47 submillimeter galaxies 47 constellation Aquila 47 tetrahedron 47 alkali atoms 47 constellation Centaurus 47 reddish orange hue 47 pions 47 Comet Halley 47 coronagraph 47 waning gibbous 47 constellations planets 47 coppery color 47 constellation Cygnus 47 gravitational interactions 47 spinels 47 GRB # 47 oranges yellows 47 Caloris 47 shimmering sequins 47 redshifted 47 dimly visible 47 submillimeter 47 gravitational interaction 47 chemical abundances 47 comet McNaught 47 particle acceleration 47 sonoluminescence 47 antineutrinos 47 coppery orange 47 crescent moons 47 iridescence 47 oblongs 47 dusty disks 47 exoplanetary 47 dwarf novae 47 glow brightly 47 Butterfly Nebula 47 Cosmic rays 47 Saturn rings 47 constellation Hydra 47 swinging pendulums 47 SNe Ia 47 GRB #A 47 Voorwerp 47 planet Uranus 47 solar flares 47 punctate 47 Solar flares 47 waxing crescent 47 VLTI 47 #gy 47 reionization 47 Noctilucent clouds 47 Cosmic Microwave Background 47 CMB photons 47 galactic nucleus 47 Canes Venatici 47 supernova SN 47 spherical shapes 47 galaxy formation 47 pinkish glow 47 Mpc 47 scalloped edges 47 Andromeda Galaxy 47 snowmen angels 47 metallicity 47 cinder cones 47 dwarf galaxies 47 gamma ray bursts 47 Pinwheel galaxy 47 magnetized plasma 47 olivine crystals 47 airglow 47 cosmic strings 47 super nova 47 diffraction grating 47 bluish 47 quasicrystal 47 yellowish glow 47 polar craters 47 ejecta blanket 47 blacklights 47 Bose Einstein Condensate 47 elliptical galaxy NGC 47 ejecta 47 Galaxy Evolution 47 AU Mic 47 planetarium dome 47 spiral galaxy Messier 47 elliptically shaped 47 gravitational tugs 47 IRAS 4B 47 Fermi telescope 47 Kelvin Helmholtz 47 Perseids meteor shower 47 gamma ray burst 47 dazzlingly bright 47 X ray telescopes 47 Aurigid 47 optical wavelengths 47 Cosmic Microwave Background CMB 46 superluminal 46 X ray photons 46 magnetotail 46 Quadrantid 46 fluorescing 46 cosmic microwave background 46 coppery red 46 moon Mimas 46 specular lighting 46 constellation Sagittarius 46 colorful geometric shapes 46 Type Ic supernova 46 galaxy cluster 46 auroras 46 purple amethyst 46 faint wisps 46 J# +# [002] 46 photons emitted 46 singularities 46 ellipsoidal 46 pyrotechnical display 46 Horsehead Nebula 46 Perseid meteors 46 constellation Ophiuchus 46 planet magnetosphere 46 opalescence 46 iridescent blue 46 reddish orange 46 opaline 46 SN #E 46 gravitational waves 46 Orion Belt 46 zodiacal dust 46 Jack o lanterns 46 absorbs photons 46 iridescent sheen 46 RX J# 46 Cepheid variable 46 florescent 46 magnetosphere 46 Orionid meteors 46 fading afterglow 46 luminous 46 Syrtis Major 46 pulsations 46 GJ #b [002] 46 cosmos 46 radiating outward 46 Particle acceleration 46 superfluids 46 palmate 46 Doradus 46 spherical halo 46 pale yellowish 46 Geometric shapes 46 double helix nebula 46 millimeter wavelengths 46 Glow sticks 46 circularly polarized 46 crossbedding 46 AB Aurigae 46 octagons 46 infrared imager 46 fireballs 46 flashing strobes 46 light refracting 46 habitable planets 46 Candles flicker 46 nuclei 46 triangles squares 46 Fomalhaut b 46 orangish red 46 cosmic microwave radiation 46 galactic cosmic rays 46 electron positron 46 cosmic ray collisions 46 meteor craters 46 cumulus cloud 46 amber tinted 46 uniformly spaced 46 magnetic reconnection 46 Tesla coils 46 Sunspots 46 KBOs 46 spangle 46 constellation Pegasus 46 binary quasar 46 stalactites stalagmites 46 galactic 46 faint galaxies 46 SN #D 46 selvages 46 refractions 46 electromagnetic flux 46 bicolored 46 superposed 46 tholins 46 Geminid shower 46 Lyrids 46 polariton 46 pale violet 46 Delta Aquarids 46 electrons protons 46 Alfven waves 46 sodium atoms 46 Camelopardalis 46 star Spica 46 Evolution Explorer 46 Gondolo 46 bulbed 46 spider mums 46 lapilli 46 bulbous shapes 46 XMM Newton 46 lunar crust 46 gamma rays 46 faintest galaxies 46 elliptic 46 WASP #b 46 Milankovitch cycles 46 comets orbiting 46 micron wavelengths 46 ultraviolet photons 46 corona discharge 46 weblike 46 spatial dimensions 46 Saturn moon Iapetus 46 polychromatic 46 planet WASP #b 46 clouds scudding across 46 cumulonimbus 46 neon signage 46 highly collimated 45 bluish tinge 45 emit gamma rays 45 sized planets orbiting 45 HD# [002] 45 muon neutrino 45 stellar seismology 45 cosmic collisions 45 radiative cooling 45 high redshift galaxies 45 hydrated electron 45 gelatinous creatures 45 meteor impacts 45 pinkish orange 45 Pegasi 45 antimatter particle 45 electrons positrons 45 cirrus cloud 45 sunlike star 45 Saturn outermost 45 neon colors 45 squares rectangles 45 Saturnian moons 45 Sagittarius dwarf galaxy 45 stippled 45 excitations 45 SN #C 45 orangish 45 NGC# 45 brownish hue 45 redshift 45 Carved wooden 45 petal flower 45 blackholes 45 watertight lighted pushbuttons 45 runaway thermonuclear 45 Spitzer infrared 45 earths 45 Mimas 45 interstellar medium 45 masers 45 hydrated silica 45 sun corona 45 circularly polarized light 45 collisional 45 Peony nebula star 45 trimers 45 faint meteors 45 dragonfly wings 45 coronas 45 pulsating aurora 45 toroidal 45 bluish tint 45 mineral olivine 45 WIMPs 45 Perseus cluster 45 Great Orion Nebula 45 magnetic fields 45 highly magnetized neutron 45 planetesimal 45 spectroscopically 45 GQ Lupi 45 glowworms 45 multicolored 45 astrophysical objects 45 sterile neutrinos 45 ionised 45 SCP #F# 45 brown dwarf 45 soundwave 45 eddy currents 45 morphologies 45 Comet Hartley 45 softly glowing 45 constellation Orion 45 flickering shadows 45 explosive eruptions 45 TrES 4 45 outer planets 45 XTE J# 45 magma ocean 45 torus 45 quark gluon plasma 45 proton proton 45 silicate dust 45 constellation Leo 45 dynamical evolution 45 hydrogen helium 45 calcite crystals 45 particle detectors 45 unpolarized 45 millisecond pulsar 45 femtosecond pulses 45 icy moon Enceladus 45 coronal heating 45 Pulsating 45 Herschel Crater 45 Saturn moon Mimas 45 triangular shapes 45 fluorescent glow 45 hexagonal mirrors 45 butterflies flitting 45 petal shaped 45 amorphous blobs 45 strobes 45 gravitational microlensing 45 Strobe lights 45 hot Jupiters 45 jet contrails 45 electron bunches 45 twinkly lights 45 neutrino particles 45 prograde 45 gamma ray repeater 45 strobing 45 icicle shaped 45 interstellar magnetic 45 lightcycle 45 Active Galactic Nuclei 45 Io Europa 45 constellation Pisces 45 wavelike 45 eccentric orbits 45 distant galaxy clusters 45 colloidal crystals 45 chandelier dripping 45 catherine wheel 45 fainter meteors 45 constellations 45 HIP #b 45 crystals 45 gelatinous mass 45 planetesimals 45 Toenail painting 45 phosphor coating 45 unaided eye 45 Encke gap 45 magnetospheres 45 constellation Fornax 45 cloudscapes 45 symmetries 45 extrasolar planet HD #b 45 permanently shadowed craters 45 GALEX 45 Canis Major 45 electron neutrino 45 confetti cannons 45 fainter objects 45 Planck telescope 45 tiger stripes 45 Swift Tuttle 45 moons orbiting 45 asteroids comets 45 Muons 45 Virgo cluster 45 ultraviolet radiation emitted 45 pyrotechnic explosions 45 fuzzballs 45 concentric circular 45 Corot 7b 45 superatoms 45 gaseous methane 45 brightly shining 45 blues purples 45 irregular shapes 45 obscuration 45 geometrically shaped 45 ray Space Telescope 45 ESO VLT 45 Earth magnetotail 45 galactic nuclei 45 lepton 45 tilings 45 dapples 45 constellation Taurus 45 suns moons 45 planet transits 45 kaons 45 highly elliptical orbits 45 semicircles 44 Comet #P/Holmes 44 infrared laser pulses 44 Large Magellanic Cloud 44 paramagnetic 44 protons collide 44 neutralinos 44 accreting 44 Extrasolar planets 44 dichroic 44 extrasolar planetary systems 44 delicate tracery 44 dusky purple 44 glass votives 44 Galactic cosmic rays 44 atomic lattice 44 motorized pulley 44 auroras borealis 44 hypoechoic 44 atoms 44 Earth ionosphere 44 pillow basalts 44 ruby reds 44 Brilliantly colored 44 lights twinkled 44 Swift Ultraviolet Optical 44 moonquakes 44 protoplanetary 44 tetrahedral 44 crystal triangles 44 thermonuclear fusion 44 uplight 44 constellation Auriga 44 planets Uranus 44 wingbeats 44 particles WIMPs 44 Jupiter magnetosphere 44 relativistic speeds 44 Bullet Cluster 44 protoplanetary disc 44 supergiant 44 pointings 44 Triangulum 44 spherical objects 44 HD#b 44 Saturn innermost 44 gravitational wobble 44 craggy granite 44 TGFs 44 planet orbits 44 Perseus constellation 44 sunlight glinting 44 macroscopically 44 SNe 44 tulip petals 44 bosonic 44 toroid 44 conduction electrons 44 Martian dust 44 Martian craters 44 pinks purples 44 corneal abrasions 44 magnons 44 Spitzer infrared spectrograph 44 NGC #A 44 gaseous planets 44 purplish pink 44 spherically 44 ULP cepheids