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(Click for frequent words.) 69 accretion disk 68 protoplanetary disk 67 neutron star 67 gravitational interactions 67 dwarf galaxy 67 protostar 66 blue supergiant 65 dwarf galaxies 65 galactic disk 65 planetesimals 65 gravitational 64 gravitational attraction 64 ejecta 64 gravitationally bound 64 supermassive black hole 63 infalling 63 tidally 63 accreting 63 elongated orbits 63 galaxies 63 supermassive black holes 63 planets orbits 63 interstellar medium 63 accretion disks 62 merging galaxies 62 magnetosphere 62 sunlike star 62 ionized gas 62 eccentric orbits 62 protoplanets 62 supernova explosions 61 gravitational interaction 61 galaxy clusters 61 globular cluster 61 Wolf Rayet star 61 WASP #b 61 neutralinos 61 nebular 61 circumstellar disks 61 X ray emission 61 gravitational tugs 60 atoms 60 circumstellar disk 60 elliptical galaxy 60 neutron stars 60 interstellar dust 60 HM Cancri 60 protostars 60 solar nebula 60 active galactic nuclei 60 rotational axis 60 red supergiant 59 proto planetary disk 59 brown dwarfs 59 magnetic fields 59 spiral galaxies 59 Neutron stars 59 supernova explosion 59 Hot Jupiters 59 circular orbits 59 globulars 59 spherical halo 59 circumstellar 59 planetary nebulae 59 SMBH 59 planet WASP #b 59 retrograde orbit 59 gravitational pull 59 Eta Carinae 59 magnetar 59 Earth magnetosphere 59 protoplanet 59 AGNs 59 gravitational tug 58 galaxy cluster 58 particles 58 moonlet 58 hydrogen atoms 58 orbits 58 Upsilon Andromedae 58 millisecond pulsars 58 helium atoms 58 globular clusters 58 brown dwarf 58 rocky planets 58 blue straggler 58 distant galaxy 58 gravitational pulls 58 infall 58 icy moons 58 sodium atoms 58 Oort cloud 58 galactic clusters 58 nuclei 58 quasar 58 moonlets 58 atomic nuclei 57 millisecond pulsar 57 potassium atoms 57 X ray binary 57 galactic halo 57 interstellar clouds 57 Saturn magnetosphere 57 planetary orbits 57 supermassive 57 icy comets 57 protoplanetary disks 57 orbital resonance 57 HL Tau 57 gravitational tidal 57 silicate dust 57 stellar nurseries 57 gravitational tides 57 outer layers 57 deuterium atoms 57 microquasar 57 lithium atoms 57 Kuiper belt 57 galaxy 56 antiprotons 56 baryon 56 terrestrial planets 56 Kuiper Belt objects 56 ionized particles 56 elongated orbit 56 Epsilon Eridani 56 Milky Way halo 56 planets 56 pulsar 56 elliptical galaxies 56 galaxy M# [002] 56 hot Jupiters 56 Oort Cloud 56 Andromeda galaxy 56 AB Aurigae 56 interstellar cloud 56 red supergiants 56 Milky Way Galaxy 56 pions 56 Kuiper belt objects 56 Magellanic Clouds 56 superfluid 56 helium nuclei 56 silicon monoxide 56 comets orbiting 56 Planetary nebulae 56 photosphere 56 orbiting planets 56 SN#A 56 KBOs 56 Omega Centauri 56 galaxies collide 56 chondrules 56 CoRoT 7b 56 oxygen atoms 55 hydrogen nuclei 55 relativistic particles 55 infalling gas 55 cosmic ray particles 55 gaseous planets 55 muons 55 galactic bulge 55 spacetime 55 magnetotail 55 spiral galaxy 55 neutrons 55 metallicity 55 torus 55 WIMPs 55 active galactic nucleus 55 observable universe 55 quasars 55 exosphere 55 planet orbits 55 type Ia supernova 55 spherically symmetric 55 Large Magellanic Cloud 55 galactic cosmic rays 55 excitons 55 comet tail 55 electrons 55 galactic mergers 55 antimatter particles 55 HD#b 55 comet nucleus 55 galaxy formation 55 runaway thermonuclear 55 GRBs 55 exoplanet orbiting 55 magnetopause 55 nucleons 55 proto galaxies 55 Gravitational waves 54 nebula 54 Milky Way 54 Triangulum 54 planet HD #b 54 electrostatic repulsion 54 mesons 54 Earth radii 54 energetic electrons 54 foreground galaxy 54 meteoroids 54 silicates 54 R Coronae Borealis 54 baryonic 54 exoplanets orbiting 54 ionize 54 magnetars 54 jovian 54 planetesimal 54 GRB # 54 starburst galaxies 54 highly magnetized neutron 54 Virgo cluster 54 BP Psc 54 galactic cores 54 antiparticles 54 interstellar dust grains 54 planetary embryos 54 moon Mimas 54 gamma rays 54 magnetic flux 54 oppositely directed 54 coronal mass ejection 54 rotating neutron stars 54 gaseous planet 54 sized planets orbiting 54 particles WIMPs 54 moons orbiting 54 AU Mic 54 GQ Lupi 54 transiting planet 54 colliding galaxies 54 protoplanetary disc 54 baryonic matter 54 lensing galaxy 53 X ray binaries 53 bosons 53 supernova 53 phonons 53 Milky Way galaxy 53 CMB photons 53 extrasolar 53 emit X rays 53 orbitals 53 planemos 53 proplyds 53 tidal tails 53 SN #gy 53 filamentary 53 magma ocean 53 cosmic dust 53 transiting planets 53 distant galaxies 53 nucleosynthesis 53 Virgo Cluster 53 deuterium 53 Gliese #c 53 supergiant star 53 planet orbiting 53 martian atmosphere 53 gravity warps 53 gamma ray burst 53 sunlike stars 53 luminous galaxies 53 elliptical orbits 53 Beta Pictoris 53 proto cluster 53 X ray emitting 53 planets moons 53 XTE J# 53 Trojan asteroids 53 blazars 53 gravitons 53 Enceladus 53 magnetic reconnection 53 weakly interacting 53 proto planetary disks 53 GJ #b [002] 53 SMBHs 53 Bok globules 53 planetary nebula 53 V# Mon 53 sterile neutrinos 53 Gliese #e 53 HD #b [002] 53 spinning neutron 53 starburst galaxy 53 hypervelocity stars 53 dye molecules 53 quantum mechanically 53 Type Ia supernova 53 Kuiper Belt Objects 53 Bullet Cluster 53 ionised 53 electron density 53 exoplanetary 53 Wolszczan 53 reflection nebula 53 photons 53 Fomalhaut b 53 heliosphere 52 comet 52 TrES 4 52 P/# A2 52 carbonate minerals 52 Earths orbiting 52 Supernovae 52 interstellar dust clouds 52 filamentary structure 52 Type 1a supernovae 52 RS Ophiuchi 52 planet magnetosphere 52 Zeta Ophiuchi 52 eclipsing binary 52 superdense 52 supernova remnants 52 Yarkovsky effect 52 Henize #-# 52 highly elliptical orbits 52 comets 52 supernovae 52 supermassive stars 52 positrons 52 solar corona 52 tidal bulge 52 moon Io 52 unpaired electrons 52 Geminga 52 fermions 52 galaxy M# [001] 52 wavefunction 52 ions 52 shorter wavelengths 52 galaxy NGC 52 Arches Cluster 52 antiproton 52 Earthlike planets 52 redshifted 52 dense clumps 52 type Ia supernovae 52 hydrogen helium 52 coronagraph 52 cosmic cannibal 52 Saturn rings 52 gaseous envelope 52 Kuiper belt object 52 star Gliese 52 fainter objects 52 interstellar particles 52 asteroidal 52 thermonuclear reactions 52 retrograde orbits 52 Jupiter magnetosphere 52 W boson 52 spheroidal 52 molten magma 52 X ray wavelengths 52 interacting galaxies 52 graphene layers 52 strange quark 52 BP Piscium 52 lithosphere 52 Supermassive black 52 dust particles 52 maser emission 52 emission nebula 52 moon Ganymede 52 rubidium atoms 52 gamma ray emission 52 blazar 51 super Earths 51 Mimas 51 cesium atoms 51 Io volcanoes 51 binary asteroids 51 helium ions 51 hydrogen atom 51 corona 51 Beta Pictoris b 51 sulfate aerosols 51 bosonic 51 antiparticle 51 elliptical galaxy NGC 51 polar vortex 51 impactors 51 Sedna 51 dwarf spheroidal galaxies 51 orbiting 51 Hyades cluster 51 SN #A 51 Scheila 51 XO 3b 51 collisional 51 nucleobases 51 Hubble observations 51 Proxima Centauri 51 angular momentum 51 silicate mantle 51 constellation Taurus 51 Toutatis 51 coronal mass ejections CMEs 51 exciton 51 Antennae Galaxies 51 gravitational radiation 51 Epsilon Indi 51 electron spins 51 supernova remnant 51 hypernova 51 Epsilon Aurigae 51 VY Canis Majoris 51 gravitational lens 51 Sagittarius dwarf galaxy 51 filaments 51 constellation Cassiopeia 51 Type Ia supernovae 51 ionized 51 galactic magnetic 51 planets orbiting stars 51 vortices 51 aerosol particles 51 supernovae explosions 51 Galaxies 51 proton 51 stellar occultation 51 electron neutrinos 51 Phoebe orbits 51 magnetic particles 51 high redshift galaxies 51 comets asteroids 51 Cosmic rays 51 cosmic rays 51 pulsars 51 zodiacal dust 51 Churyumov Gerasimenko 51 Io Europa 51 constellation Ursa Major 51 oppositely charged 51 ionized hydrogen 51 relativistic protons 51 electrons orbiting 51 W bosons 51 distant quasar 51 neighboring Andromeda galaxy 51 Corot 9b 51 Alfven waves 51 inner moons 51 Red Rectangle 51 coronal mass ejections 51 GJ#b 51 asteroid 50 Pluto Charon 50 neutralino 50 gravitational perturbations 50 magnetically 50 cometary material 50 Comet Tempel Tuttle 50 asteroids 50 Supernova #A 50 nucleon 50 ionised gas 50 SN #C 50 exo planets 50 Fornax cluster 50 evanescent waves 50 Hawking radiation 50 Cancri e 50 cosmic strings 50 Cepheids 50 atomic particles 50 gamma rays emitted 50 excitations 50 Orion nebula 50 intrinsic brightness 50 Andromeda Galaxy 50 giant elliptical galaxy 50 superdense neutron star 50 Mandushev 50 giant elliptical galaxies 50 outer planets 50 redshift 50 interstellar magnetic 50 SN #E 50 NGC #A 50 baryons 50 kaons 50 optical wavelengths 50 novae 50 Earth ionosphere 50 Higgs bosons 50 Komossa 50 inhabitable planets 50 gravitational slingshot 50 organic molecules 50 Iapetus 50 GeV 50 protons 50 galactic nuclei 50 Orion Nebula 50 Phaethon 50 rotating neutron 50 luminosities 50 prominences 50 electron 50 X ray observatories 50 axions 50 CoRoT #b 50 Rosette Nebula 50 Photons 50 NGC# 50 substorm 50 trans Neptunian objects 50 Jovian moon 50 habitable zones 50 Carina Nebula 50 gravitational lensing 50 Kepler #b 50 occultations 50 olivine 50 orbits Saturn 50 Alfvén waves 50 albedo reflectivity 50 outermost planets 50 galaxy NGC# 50 Carina constellation 50 dimers 50 globular star 50 positronium atoms 50 dwarf spheroidal 50 solitons 50 chromosphere 49 electrons positrons 49 dynamical 49 Saturnian moon 49 rubidium vapor 49 Martian dust 49 neutrinos 49 regolith 49 Saturn Uranus 49 exosolar planets 49 volcanic magma 49 Wolf Rayet stars 49 Keck Interferometer 49 dynamical evolution 49 cometary debris 49 comet Tempel Tuttle 49 comet orbit 49 Jupiter gravitational pull 49 polaritons 49 nebulae 49 ultraviolet photons 49 gravitational waves 49 starlight 49 planets orbiting 49 Bug Nebula 49 magnetospheric 49 silicate minerals 49 brane 49 silicon atoms 49 emitting gamma rays 49 distant supernovae 49 GJ #b [001] 49 alpha particles 49 planets Uranus 49 Earthlike 49 fermionic atoms 49 Upsilon Andromedae b 49 CMEs 49 periodic dimming 49 Solar System 49 ULIRGs 49 planet Gliese #g 49 highly elliptical orbit 49 nitrogen atoms 49 spicules 49 relativistic jets 49 uncharged particles 49 branes 49 crystal lattice 49 velocity dispersion 49 ionized gases 49 Rydberg atoms 49 RX J# 49 B mesons 49 astrophysical objects 49 rubidium atom 49 Kuiper Belt object 49 inner asteroid belt 49 diffraction pattern 49 nanocrystals 49 Gal Yam 49 distant quasars 49 OGLE TR #b 49 Corot 7b 49 constellation Virgo 49 extrasolar planetary systems 49 lunar crust 49 gamma ray bursts 49 MG J# +# 49 silicate rocks 49 occulted 49 Gamma rays 49 emits X rays 49 non baryonic 49 asteroid belt 49 constellation Aquarius 49 transiting exoplanet 49 permanently shadowed craters 49 molecules 49 van der Waals forces 49 reionization 49 plasmasphere 49 extrasolar planetary 49 ferromagnet 49 energetic gamma rays 49 colloidal particles 49 X ray pulses 49 chondrites 49 particle 49 nanopillars 49 boson 49 thermosphere 49 Small Magellanic Cloud 49 Cassini ion 49 Puppis 49 massless particles 49 olivine mineral 49 ionizes 49 astrophysicists 49 crystal lattices 48 gelatinous mass 48 oblate spheroid 48 Monoceros 48 PZ Tel 48 magnetization 48 exoplanets 48 X ray Observatory 48 Galactic cosmic rays 48 reentry capsule 48 electron orbits 48 X ray telescopes 48 IRAS #-# 48 V# Sgr 48 Trapezium 48 substorms 48 meteoroid 48 filamentary structures 48 galactic 48 stony meteorites 48 micelles 48 GRB# 48 constellation Hercules 48 YORP effect 48 Spiral galaxies 48 strangelet 48 cosmological distances 48 supersymmetric particles 48 Filippenko 48 exoplanet 48 protoplanetary discs 48 PSR J# 48 planet transits 48 Tauri Sb 48 magnetic dynamo 48 dimer 48 KH #D 48 radial velocity 48 oppositely 48 conduction electrons 48 viscous fluid 48 Nasa spacecraft 48 Gravitational lensing 48 radially 48 habitable planets 48 Gliese #d 48 gravitational lenses 48 hydrocarbon molecules 48 Pluto Eris 48 supergiant stars 48 J# +# [002] 48 Trifid 48 strangelets 48 spherical shape 48 spherical particles 48 infrared photons 48 ionise 48 subsurface ocean 48 meteoroid impacts 48 innermost planet 48 submillimeter galaxies 48 planetoid 48 tetrahedra 48 quanta 48 mantle plumes 48 celestial object 48 magnetised 48 solar flares 48 fermion 48 muon 48 phonon 48 CoRoT 9b 48 heliosheath 48 heliospheric 48 astronomers 48 spacecraft flyby 48 CoRoT 48 coronal loop 48 planets orbiting distant 48 comet dust 48 valence electrons 48 antiquarks 48 magnetic monopoles 48 cosmic phenomena 48 chemical abundances 48 cosmic ray 48 tau neutrinos 48 HIP #b 48 neutrino 48 mu Arae 48 Jovian moons 48 electron beams 48 xenon ions 48 manganese atoms 48 quantum particle 48 hadrons 48 Andromeda 48 hydrogen ions 48 planetoids 48 gluons 48 Muons 48 telescope eyepiece 48 lavas 48 IRAS 4B 48 interstellar grains 48 barred spiral galaxy 48 CAIs 48 hydrogens 48 TrES 48 volcanic moon Io 48 binary asteroid 48 Electrons 48 Particles 48 supersolid 48 R#a# 48 galactic collisions 48 electron flux 48 geomagnetic storms 48 dwarf novae 48 oxygen ions 48 dipoles 48 neutrino particles 48 helium atom 48 gravitation 48 water vapor 48 cobalt atom 48 ferrofluid 48 circular orbit 48 mineral olivine 48 toroid 48 outermost layers 48 infalling matter 48 muon neutrinos 48 extrasolar planet 48 phyllosilicates 48 oxygen atom 48 positron 48 spectral measurements 47 sterile neutrino 47 longer redder wavelengths 47 Kuiper Belt Object 47 gaseous 47 actin filaments 47 protoplanetary 47 constellation Cetus 47 atomic nucleus 47 thermonuclear explosion 47 faraway galaxies 47 Uranus 47 Kepler 9c 47 droplets 47 prograde 47 sunward 47 moon Deimos 47 B meson 47 Seyfert galaxies 47 Venusian atmosphere 47 diffracted 47 Pegasi 47 Casimir cavity 47 Eagle Nebula 47 energetic cosmic rays 47 Spitzer infrared spectrograph 47 habitable worlds 47 reactants 47 Saturnian moons 47 basaltic rocks 47 Hanny Voorwerp 47 quasicrystal 47 ring resonators 47 holes subatomic versions 47 blackholes 47 crustal rocks 47 coronal heating 47 Saturn outermost 47 Type 1a supernova 47 coronal holes 47 RY Sagittarii 47 crystalline silicates 47 spiral nebulae 47 graphene sheet 47 UV photons 47 supernovas 47 cosmological constant 47 VHE gamma rays 47 nanobubbles 47 afterglows 47 dense neutron stars 47 meteoritic material 47 Coma Cluster 47 zinc ions 47 Evolution Explorer 47 colloidal crystals 47 highly collimated 47 spinning pulsar 47 laser pulse 47 axial tilt 47 ionosphere 47 Rydberg atom 47 GRB #B 47 Sagittarius B2 47 tidally locked 47 spiral galaxy NGC 47 meteorite impacts 47 HD# [002] 47 Jupiter Ganymede 47 supercontinents 47 De Pontieu 47 Tempel 1 47 electrostatic attraction 47 ENAs 47 extrasolar planets 47 inner Oort Cloud 47 Cepheid variable 47 Jupiter Saturn Uranus 47 gravitational wobbles 47 ionized molecules 47 moon Enceladus 47 redshifts 47 visible wavelengths 47 Bose Einstein condensate 47 Earth magnetotail 47 Cabeus crater 47 magma molten rock 47 Pleiades cluster 47 Saturn Cassini 47 slender crescent 47 planet Uranus 47 APXS 47 Gemini constellation 47 Galileo spacecraft 47 solar prominences 47 dipole moment 47 Jupiter moon Io 47 heavily cratered 47 impactor 47 electron pairs 47 quasiparticle 47 subatomic 47 star Proxima Centauri 47 earthlike planets 47 precessing 47 cesium ions 47 Orionids 47 ultracold atoms 47 Saturn moon 47 spherules 47 comet particles 47 SOHO spacecraft 47 X ray observatory 47 galactic cosmic ray 47 electron pairing 47 Kazantzidis 47 singularities 47 chlorine monoxide 47 meridional flow 47 antihydrogen 47 particle acceleration 47 #P/Churyumov-Gerasimenko 47 infrared laser beam 47 poly dA 47 Hipparcos 47 superstrings 47 Earthlike planet 47 quark gluon plasma 47 Crab Nebula 47 starquakes 47 Super Earths 47 Epimetheus 47 quantum tunneling 47 interstellar dust particles 47 Cosmic Microwave Background 47 masers 47 gravitational microlensing 47 HII regions 47 optical lattice 47 moons Phobos 47 Galilean moons 46 lightwaves 46 constellation Sagittarius 46 ice crystals 46 photons emitted 46 gamma ray flares 46 colliding asteroids 46 IBEX spacecraft 46 moon Mab 46 asteroids comets 46 Cat Paw Nebula 46 Type Ia supernovas 46 planets orbiting sun 46 cosmic ray collisions 46 moons Io 46 radioactive decay 46 lepton 46 infrared wavelengths 46 macroscopically 46 brightest meteors 46 Higgs singlet 46 HD #b [001] 46 Saturn Jupiter Uranus 46 dipolar 46 riboswitch 46 Tau Ceti 46 coronal loops 46 diamagnetic 46 antihydrogen atoms 46 strange quarks 46 Stephan Quintet 46 Haumea 46 subatomic particles 46 infrared radiation 46 carbonaceous chondrite 46 Gamma ray bursts 46 Dwarf galaxies 46 Bose Einstein Condensate 46 gravitational instabilities 46 Voorwerp 46 dusty disks 46 quarks 46 waxing gibbous moon 46 hemoglobin molecules 46 phytochrome 46 SN #D 46 planetary Transits 46 stellar occultations 46 mesosphere 46 planet HD#b 46 chlorophyll molecules 46 LCROSS 46 strontium titanate 46 Schwarzschild radius 46 radiative 46 Globular clusters 46 RHESSI 46 solar minima 46 quantum particles 46 nebulosity 46 plutons 46 hydrothermal fluids 46 deuterium atom 46 planets asteroids 46 Cold Dark Matter 46 distant galaxy clusters 46 relativistic speeds 46 galaxy supermassive black 46 Comet Holmes 46 electron positron pairs 46 Cassini flybys 46 moon gravitational pull 46 spectrographs 46 ESA XMM Newton 46 planetary 46 auroral 46 planets circling 46 eclipsing binaries 46 Comet Halley 46 cometary dust 46 meson 46 Coma cluster 46 electroweak 46 antineutrinos 46 Doppler shifts 46 binaries 46 moons 46 tholins 46 topological defects 46 gamma ray telescopes 46 ribozyme 46 comet McNaught