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(Click for frequent words.) 67 Neutron stars 65 supermassive 64 relativistic jets 63 accretion disks 62 X ray binaries 61 Magnetars 61 red supergiants 60 active galactic nuclei 60 superdense 60 gravitational radiation 59 starburst galaxies 59 giant elliptical galaxies 59 X ray binary 59 protostars 59 Gamma ray bursts 59 energetic cosmic rays 59 galaxies collide 59 magnetars 59 colliding galaxies 58 SN #A 58 eccentric orbits 58 merging galaxies 58 energetic gamma rays 58 elongated orbits 58 SMBH 58 millisecond pulsars 58 elliptical galaxy 58 supernova explosions 58 neutron stars 57 galactic cores 57 Wolf Rayet stars 57 rotating neutron stars 57 globular clusters 57 proto galaxies 57 AGNs 56 blue supergiant 56 galactic halo 56 Hot Jupiters 56 Wolf Rayet star 56 magnetar 56 circumstellar 56 Milky Way halo 56 galactic disk 56 planetary nebulae 56 circumstellar disk 55 highly magnetized neutron 55 type Ia supernovae 55 galactic clusters 55 interacting galaxies 55 neutron star 55 ionized oxygen 55 spherically symmetric 55 supergiant star 55 SUSY 55 Supermassive black 55 energetic electrons 55 Globular clusters 55 runaway thermonuclear 55 Gamma rays 55 type Ia supernova 55 luminosities 55 V# Mon 55 Bok globules 55 microquasar 55 Red Rectangle 55 Pulsars 55 supergiant stars 55 silicon monoxide 55 globulars 54 VY Canis Majoris 54 supernovae explosions 54 blue straggler 54 gravitationally bound 54 protoplanets 54 protoplanetary disc 54 neutralinos 54 RX J# 54 planetary orbits 54 baryonic 54 planets orbits 54 protoplanetary discs 54 branes 54 eclipsing binary 54 superdense neutron star 54 hot Jupiters 54 brown dwarfs 54 BP Piscium 54 supernovas 54 galaxy M# [002] 54 proto cluster 54 globular cluster 54 gravitational interactions 54 accretion disk 54 gamma ray bursts 54 quasar 54 rotating neutron 54 interstellar clouds 54 dwarf galaxy 53 proton antiproton 53 supernova explosion 53 lensing galaxy 53 relativistic particles 53 Cosmic rays 53 HL Tau 53 Type Ia supernova 53 cosmic ray collisions 53 redshifted 53 Hawking radiation 53 hypernova 53 supernova remnants 53 interstellar dust clouds 53 starburst galaxy 53 distant galaxies 53 faraway galaxies 53 cluster NGC 53 nucleon 53 Geminga 53 emits X rays 53 dense clumps 53 Bug Nebula 53 spheroidal 53 antimatter particles 53 SN #gy 53 Gamma ray bursts GRBs 53 exoplanets orbiting 53 XO 3b 53 deuterium atoms 53 gamma rays 53 red supergiant 53 Arches Cluster 53 emit X rays 53 AB Aurigae 53 nucleosynthesis 52 blazars 52 supernovae 52 galaxies 52 Gemini constellation 52 ionized gases 52 nebular 52 J# +# [002] 52 electroweak 52 WASP #b 52 holes subatomic versions 52 infalling gas 52 helium nuclei 52 bosonic 52 protoplanetary 52 distant supernovae 52 strangelet 52 SN#A 52 Type Ia 52 faint galaxies 52 strangelets 52 SN #E 52 Gravitational waves 52 RS Ophiuchi 52 pulsars 52 Antennae Galaxies 52 novas 52 foreground galaxy 52 X ray pulses 52 quasars 52 ULIRGs 52 planetary nebula 52 X ray photons 52 redshifts 52 luminous galaxies 51 elliptical galaxy NGC 51 Henize #-# 51 nebulas 51 SN #C 51 cosmic phenomena 51 protostar 51 accurate atomic clocks 51 infrared photons 51 chondrules 51 GJ#b 51 axions 51 elliptical galaxies 51 X ray emitting 51 hadron 51 Type 1a supernovae 51 distant galaxy 51 SMBHs 51 interstellar cloud 51 HII regions 51 circumstellar disks 51 protoplanet 51 Orion nebula 51 Astronomers theorize 51 electron neutrinos 51 electron volt 51 Dwarf galaxies 51 singularities 51 binary asteroid 51 starbursts 51 GRBs 51 baryon 51 Doppler shifts 51 hypervelocity stars 51 Delta Cephei 51 galactic mergers 51 millimeter wavelength 51 protoplanetary disk 51 R Coronae Borealis 51 Kuiper belt objects 51 Hanny Voorwerp 51 galactic collisions 51 ionized gas 51 dwarf galaxies 51 emission nebula 51 radial velocity technique 51 nebula NGC 51 inhomogeneous 51 galaxy NGC 51 subatomic particles 50 Bullet Cluster 50 spinning neutron 50 metallicity 50 diatomic 50 retrograde orbit 50 spherical particles 50 proplyds 50 protoplanetary disks 50 silicate dust 50 maser emission 50 weakly interacting 50 supermassive black holes 50 electron positron pairs 50 massless particles 50 filamentary structures 50 SNR #-#.# 50 filamentary structure 50 muon neutrino 50 celestial phenomena 50 hadrons 50 Epsilon Eridani 50 photon beams 50 supermassive stars 50 supersymmetric particles 50 sterile neutrinos 50 Muons 50 Earths orbiting 50 Trapezium 50 SMM J# 50 Solar flares 50 exoplanetary 50 subatomic particle 50 atomic nuclei 50 planetary nebulas 50 electron positron 50 X ray spectra 50 periodic oscillations 50 galactic nucleus 50 spiral galaxies 50 mesons 50 distant quasars 50 Spitzer infrared spectrograph 50 SN #ha 50 CoRoT #b 50 TrES 4 50 NGC# 50 Supernovae 50 HD#b 50 spinning neutron stars 50 planetesimal 50 excitations 50 comets orbiting 50 particles WIMPs 50 starquakes 50 Bose Einstein condensates 50 afterglows 50 deuterium nuclei 50 Type Ic supernovae 50 Eta Carinae 50 Supernovas 50 HM Cancri 50 extragalactic 50 CoRoT 7b 50 spacetime 50 alkali atoms 50 Galilean moons 50 gravitational redshift 50 planet WASP #b 50 galaxy clusters 49 supernova 49 femtosecond timescale 49 W bosons 49 volcanic moon Io 49 galaxy 49 XTE J# 49 RS Oph 49 BP Psc 49 gamma ray bursts GRBs 49 Tarantula nebula 49 crystalline silicates 49 proton particles 49 supermassive black hole 49 gaseous planet 49 proton proton 49 Fomalhaut b 49 Seyfert galaxies 49 blazar 49 VHE gamma rays 49 synchrotron x ray 49 gravity warps 49 infalling matter 49 antiproton 49 AU Mic 49 B mesons 49 Planetary nebulae 49 infalling 49 elliptical orbits 49 Phys. Rev. Lett 49 cosmological theories 49 gamma ray emitting 49 cosmic strings 49 dust enshrouded 49 Type Ia supernovae 49 gravitational pulls 49 nebulae 49 subatomic versions 49 superfluids 49 Pleiades cluster 49 Sagittarius dwarf galaxy 49 Jovian moons 49 Fornax cluster 49 extrasolar 49 stellar nurseries 49 relativistic protons 49 Higgs bosons 49 ultradense 49 Type 1a supernova 49 helium atoms 49 retrograde orbits 49 moonlets 49 gravitational tides 49 icy moons 49 Crab pulsar 49 Bosons 49 gravitational waves 49 novae 49 gamma rays emitted 49 jovian 49 highly collimated 49 Carina Nebula 49 graphite whiskers 49 constellation Hercules 49 starlike 49 X ray emission 49 sodium atoms 49 dipolar 49 dusty disks 49 coronal loops 49 Baptistina 49 accreting 49 planets orbiting distant 49 Zeta Ophiuchi 49 ionized molecules 49 Trifid 49 particle colliders 49 excitons 49 sunlike stars 49 IRAS 4B 49 fermionic atoms 49 ionized particles 49 spherical halo 49 Rydberg atoms 49 planet orbits 49 gravitational interaction 49 transiting planets 49 ultraviolet wavelengths 49 planet HD #b 49 SN #cr 49 earthlike 49 millisecond pulsar 49 GJ #b [001] 48 X ray telescopes 48 cosmic ray particles 48 nanobubbles 48 nuclei 48 icosahedral 48 cosmic microwave radiation 48 gamma ray radiation 48 active galactic nucleus 48 particle acceleration 48 muons 48 Orion Nebula 48 spatially resolved 48 Elliptical galaxies 48 neutralino 48 prominences 48 submicroscopic 48 Tarantula Nebula 48 boron atoms 48 planet gravitational tug 48 particle beams 48 SN #D 48 tidal tails 48 X ray wavelengths 48 hydrogen nuclei 48 Cat Paw Nebula 48 nanosize 48 Kuiper belt object 48 diffract 48 gamma ray emission 48 magnetic fields 48 gamma ray burst 48 alpha particles 48 SNe Ia 48 galaxies nebulae 48 precessing 48 spiral nebulae 48 graphene sheet 48 Beta Pictoris b 48 Upsilon Andromedae 48 infall 48 strange quarks 48 gravitational lenses 48 observable universe 48 planemos 48 exoplanet orbiting 48 nitrogen atoms 48 antiparticles 48 transiting planet 48 cosmological distances 48 Extrasolar planets 48 gravitons 48 constellation Cassiopeia 48 shorter wavelengths 48 inhomogeneities 48 interstellar medium 48 inhabitable planets 48 Lagoon Nebula 48 X ray observatory 48 tetrahedra 48 Eagle Nebula 48 pions 48 Beta Pictoris 48 Virgo cluster 48 circumstellar dust 48 nebulosity 48 gravitational perturbations 48 Small Magellanic Cloud 48 brown dwarf 48 astrophysical phenomena 48 Konacki 48 interferometers 48 solar neutrinos 48 Doradus 48 pulsar 48 KBOs 48 prograde 48 asteroidal 48 nucleons 48 planetoids 48 electron neutrino 48 airbursts 48 electrons behave 48 filamentary 48 antiquarks 48 ultraviolet photons 48 Trifid Nebula 48 V# Puppis 48 momenta 48 ionised gas 47 Rayleigh scattering 47 Hyades cluster 47 X ray Observatory 47 Corot 7b 47 Active Galactic Nuclei 47 Jovian planets 47 impactors 47 holes subatomic 47 SNe 47 antiprotons 47 Einstein equations 47 Coma Cluster 47 detect gravitational waves 47 kaons 47 surface plasmon 47 RRATs 47 reflection nebula 47 magnetospheric 47 unpolarized 47 Venusian atmosphere 47 globular cluster M# 47 Toutatis 47 Cepheids 47 transiting exoplanets 47 W boson 47 fermion 47 HIP #b 47 collisional 47 moon Io 47 Fermions 47 rotational axis 47 Earthlike 47 calcite crystals 47 photosphere 47 fermionic 47 ionized hydrogen 47 quantum particle 47 eclipsing binaries 47 distant galaxy clusters 47 gravitationally 47 Cosmic Microwave Background 47 supergiants 47 gravitational tugs 47 cosmic rays 47 trimers 47 Cygnus X 47 stellar seismology 47 inner Oort Cloud 47 Pieter van Dokkum 47 Stephan Quintet 47 sunlike star 47 Type Ia supernovas 47 quasiparticle 47 dirty snowballs 47 spiral galaxy NGC 47 planetary transits 47 chromosphere 47 antiparticle 47 wavefunction 47 Carina constellation 47 Omega Centauri 47 intrinsic brightness 47 giant elliptical galaxy 47 Saturn rings 47 redshift 47 unpaired electrons 47 electrons positrons 47 GeV 47 galaxy formation 47 antineutrinos 47 dwarf spheroidal galaxies 47 Epsilon Aurigae 47 Mandushev 47 glows brightly 47 Alfven waves 47 Galactic cosmic rays 47 HD# [002] 47 colliding protons 47 galactic bulge 47 Gondolo 47 comets asteroids 47 particle accelerators 47 ionised 47 heliospheric 47 neutrons 47 planets moons 47 oppositely directed 47 planetary embryos 47 sterile neutrino 47 atom smashers 47 planet transits 47 x ray beams 47 Platonic solids 46 gluon 46 Gliese #d 46 dust mote 46 electron orbits 46 Schwarzschild radius 46 gamma ray flares 46 RXTE 46 diffraction grating 46 microcavity 46 lepton 46 galactic nuclei 46 circularly polarized light 46 photons particles 46 meteoritic material 46 Rydberg atom 46 atoms 46 planetesimals 46 Spiral galaxies 46 gamma ray photons 46 nanometer sized 46 silicate mantle 46 magnetic dipole 46 quasicrystal 46 magnetic dynamo 46 globular star 46 polaritons 46 chemical abundances 46 CoRoT 9b 46 WIMPs 46 distant quasar 46 ionize 46 elongated orbit 46 submillimeter 46 visible wavelengths 46 Trojan asteroids 46 gaseous envelope 46 moons orbiting 46 Antennae galaxies 46 asteroseismology 46 CAIs 46 silicate grains 46 positrons 46 planets 46 Subatomic particles 46 polariton 46 neutrinos 46 Super Kamiokande 46 plasmasphere 46 pigment particles 46 superfluid 46 planet Uranus 46 meteoroids 46 spiral galaxy M# 46 Kepler #b 46 hadron collider 46 Tycho supernova remnant 46 solitons 46 Tauri Sb 46 faraway galaxy 46 Schrödinger cat 46 tau neutrinos 46 supernova SN 46 planets asteroids 46 dye molecules 46 entangled quantum 46 proton neutron 46 super Earths 46 colliders 46 HD #b [002] 46 rubidium atoms 46 neutrino particles 46 strange quark 46 perfectly spherical 46 optical spectra 46 Haumea 46 quark gluon plasma 46 galaxy supermassive black 46 magnetic monopoles 46 galaxy cluster 46 GQ Lupi 46 intermolecular forces 46 Brookhaven Relativistic Heavy 46 gravitational wave 46 Virgo Cluster 46 velocity dispersion 46 photons emitted 46 Orion constellation 46 masers 46 spiral galaxy Messier 46 superstrings 46 Crab Nebula 46 auroral displays 46 electron pairing 46 Comet Tempel Tuttle 46 coronal mass ejections CMEs 46 millimeter wavelengths 46 astrophysical 46 chemically reactive 46 Gal Yam 46 quasiparticles 46 hypervelocity 46 toroid 46 quantum tunneling 46 deuterium atom 46 antihelium 4 46 micrometre sized 46 X ray afterglow 46 Corot 9b 46 blackholes 46 observationally 46 zodiac constellations 46 cosmic ray protons 46 galaxy M# [001] 46 circular orbits 46 magnetically attracted 46 baryonic matter 46 Kuiper Belt Object 46 Z bosons 46 neutrino mass 45 lightwaves 45 x ray beam 45 fermionic condensate 45 graphene membranes 45 bosons 45 atomic particles 45 Distant galaxies 45 Fermi telescope 45 cosmic cannibal 45 fungal growths 45 oppositely charged 45 lunar maria 45 dynamical evolution 45 crustal plates 45 Sagittarius B2 45 radioactive nuclei 45 high redshift galaxies 45 crystal lattices 45 corona discharge 45 Terahertz waves 45 TGFs 45 galactic cosmic rays 45 Circinus X 1 45 Meteor showers 45 cadmium selenide 45 Geminid meteors 45 Triangulum 45 Rosette Nebula 45 superconductive 45 Comet Holmes 45 R#a# 45 moon Ganymede 45 Cherenkov radiation 45 electron emission 45 Cepheid variables 45 sonoluminescence 45 VB #b 45 extrasolar planetary 45 Helix Nebula 45 dense 45 axion 45 Galileo spacecraft 45 extrasolar planets orbiting 45 whiplike 45 submillimetre wavelengths 45 multi celled 45 spectroscopically 45 Milky Way galaxy 45 lunar crust 45 hydrogen atoms 45 carbonaceous chondrite meteorites 45 neutrino 45 Supernova #A 45 leptons 45 glowing blob 45 planetary magnetospheres 45 nanosized 45 ejecta 45 astrophysicists 45 silicate minerals 45 fissions 45 spiral galaxy 45 Comet Halley 45 electrons protons 45 lobate scarps 45 thermonuclear fusion 45 phonons 45 MG J# +# 45 helium atom 45 Evolution Explorer 45 proto planetary disks 45 atomic lattice 45 femtosecond laser pulses 45 Dumbbell Nebula 45 Coma cluster 45 Pluto Charon 45 conduction electrons 45 orbital angular momentum 45 radiofrequency waves 45 valence electrons 45 constellation Taurus 45 Bose Einstein condensate 45 planet Gliese #c 45 superfluid helium 45 ionise 45 brightnesses 45 Saturn outermost ring 45 radial velocity 45 outermost planets 45 GJ #b [002] 45 Hawking Radiation 45 dipole moment 45 electron spins 45 barred spiral galaxy 45 sulfur atoms 45 atomically smooth 45 pinwheel shaped 45 constellation Lyra 45 Coronal mass 45 assumed planets circling 45 PSR J# 45 Perseus cluster 45 gravitational 45 quantum particles 45 electrons orbiting 45 vortices 45 gravitational microlensing 45 Gliese #c 45 HD #b [001] 45 ultracold 45 gravitational lens 45 exo planets 45 spherically 45 Gliese #e 45 thermonuclear reactions 45 solar prominences 45 periodic dimming 45 ultracold molecules 45 constellation Virgo 45 vibrationally excited 45 Andromeda galaxy 45 gaseous planets 45 thermally activated 45 manganese atoms 45 reactive molecules 45 electron volts 45 Microbursts 44 exciton 44 crystalline lattice 44 electric dipole 44 Beehive Cluster 44 exert gravitational pull 44 Wolszczan 44 Z boson 44 asteroids comets 44 comet Tempel Tuttle 44 collimated 44 ENAs 44 tidal bulge 44 synchrotron emission 44 Weakly Interacting Massive Particles 44 spherical 44 Pluto Eris 44 gravitational tidal 44 GRB #A 44 topological defects 44 Earth magnetosphere 44 PSR B# 44 rubidium atom 44 Neil Gehrels 44 potassium atoms 44 plasmon 44 infrared laser pulses 44 velocities 44 particle detectors 44 tidally 44 titania nanotubes 44 orbits 44 transiting exoplanet 44 extrasolar planet HD #b 44 nucleobases 44 Einsteinian 44 optical resonator 44 Einstein cosmological constant 44 subatomic 44 outer crust 44 solar nebula 44 colloidal crystals 44 coronal mass ejections 44 sized planets orbiting 44 Cosmologists 44 planets orbiting sun 44 ellipsoidal 44 magma ocean 44 interstellar dust 44 spectroscope 44 microscopic bubbles 44 interatomic 44 Densely packed 44 cosmic particles 44 moonlet 44 non baryonic 44 electron 44 rubbly 44 intracluster 44 magnetic excitations 44 Saturnian moons 44 fermions 44 hydrated minerals 44 quantum phenomena 44 constellation Carina 44 terahertz rays 44 supergiant 44 BaBar experiment 44 protons 44 nebula 44 cosmic ray 44 collagenous 44 G#.# +#.# 44 particles 44 submillimeter galaxies 44 mineral hematite 44 planet Gliese #g 44 nanomagnets 44 smallest exoplanet 44 exosphere 44 photon energies 44 Bose Einstein Condensate 44 RMC #a 44 luminosity 44 emits gamma rays 44 spinning pulsar 44 electron beams 44 cumulonimbus cloud 44 Cosmic Microwave Background CMB 44 baryon acoustic oscillations 44 micro meteorites 44 Kaluza Klein 44 comet Hale Bopp 44 cosmic 44 crystal lattice 44 molten magma 44 Filippenko 44 ultrananocrystalline diamond 44 icy comets 44 B meson 44 gravitational attraction 44 gamma ray flashes 44 spirals inward 44 optical wavelengths 44 sharp serrated teeth 44 paramagnetic 44 trans Neptunian objects 44 μm diameter 44 spheroids 44 luminous 44 magnetosphere 44 galactic 44 NGC #A 44 Large Magellanic Cloud 44 moon Dione 44 Peony nebula star 44 positronium atoms 44 gravities 44 optical lattices 44 solar corona 44 highly elliptical orbits 44 photon absorption 44 antiparallel 44 microscopic 44 hydrogen atom 44 Stassun 44 X ray spectroscopy 44 x ray scattering 44 celled organisms 44 Tectonic plates 44 valence electron 44 macroscopically 44 gravitational acceleration 44 ULP cepheids 44 Pegasi 44 Upsilon Andromedae b 44 hemoglobin molecules 44 optical telescopes 44 subwavelength 43 lunar craters 43 Gamma ray burst 43 quanta 43 planet magnetosphere 43 glow brightly 43 ultracool 43 Lyrids 43 parsec 43 electron bunches 43 GRB # 43 Alycia Weinberger 43 braneworld black 43 colloidal particles 43 habitable worlds 43 carbonaceous chondrites 43 orbits Saturn 43 cosmic microwave background 43 coronal holes 43 tholins 43 binary asteroids 43 micrometer scale 43 reionization 43 atomic nucleus 43 cosmic gamma rays 43 Kuiper Belt object 43 IRAS #-# 43 terahertz waves 43 Galaxy Evolution 43 isotropic 43 coronal loop 43 suns 43 x ray pulses 43 spin precession 43 Milky Way 43 coronal heating 43 cosmic ray particle 43 nonmagnetic 43 Kuiper belt 43 Higgs particle 43 X ray observatories 43 superheavy elements 43 ion collisions 43 elliptical shapes 43 cosmic dust 43 D meson 43 radial velocity method 43 SCP #F# 43 CLG J# # 43 magnetospheres 43 frequency comb 43 remanent 43 ultracold atoms 43 Komossa 43 micrometer sized 43 magnetic monopole 43 DNA helix