Related by context. Frequent words. (Click for all words.) 70 supernova explosion 69 Eta Carinae 69 neutron star 69 dwarf galaxy 65 supermassive black hole 65 supernova 64 supernova explosions 63 HD #b [002] 63 Milky Way Galaxy 63 X ray emission 63 nebula 62 galaxy 62 quasar 62 supernovae 62 brown dwarf 61 supernovas 61 globular clusters 61 gravitationally 61 planet orbiting 61 ejecta 60 elliptical galaxies 60 galaxy cluster 60 supermassive black holes 59 GRBs 59 galaxies 59 interstellar medium 58 dwarf galaxies 58 Large Magellanic Cloud 58 distant galaxy 58 super Earths 58 quasars 58 neutron stars 58 spiral galaxy 58 gamma ray burst 58 pulsar 57 brown dwarfs 57 spiral galaxies 57 Milky Way 57 galaxy clusters 57 Milky Way galaxy 56 comet 56 planets 56 suns 56 nebulae 55 Orion Nebula 55 spacetime 55 orbits 55 accreting 55 extrasolar planet 55 planets orbiting 55 gamma rays 55 olivine 55 exoplanets 54 interstellar dust 54 outer layers 54 hot Jupiters 54 comet nucleus 54 deuterium 54 nuclei 54 rocky planets 54 gamma ray bursts 54 Betelgeuse 53 convective 53 pulsars 53 terrestrial planets 53 superfluid 53 Gliese 53 corona 53 exoplanet 53 Saturn rings 53 comets 52 coronal mass ejections 52 fainter 52 Enceladus 52 sunspot 52 orbiting 52 magnetosphere 52 ringed planet 52 gaseous 52 extrasolar planets 52 redshift 52 solar flares 51 angular momentum 51 cosmic ray 51 universe 51 quark 51 orb 51 Sedna 51 binary 51 Kuiper Belt 51 asteroid belt 51 distant galaxies 51 neutrons 51 nova 51 X ray Observatory 50 Jupiter moons 50 luminosity 50 XMM Newton 50 Uranus 50 neutrino 50 positrons