Related by context. Frequent words. (Click for all words.) 67 supernova explosion 66 Eta Carinae 65 brown dwarf 65 Orion Nebula 65 planet orbiting 63 HD #b [002] 63 magnetar 63 brown dwarfs 63 Large Magellanic Cloud 62 globular cluster 62 distant galaxy 61 dwarf galaxy 61 super Earths 61 nebula 61 Betelgeuse 61 hot Jupiters 60 neutron star 60 ringed planet 60 galaxy cluster 60 supernova explosions 59 globular clusters 59 rocky planets 59 orbits 58 supernova remnant 58 planets orbiting 58 X ray emission 58 Andromeda Galaxy 57 extrasolar planet 57 galaxies 57 pulsar 57 galaxy 57 gravitationally 57 quasar 57 Milky Way 56 planets 56 spiral galaxy 56 elliptical galaxies 56 Gliese 56 Milky Way galaxy 56 dwarf galaxies 56 nebulae 56 supernova 56 ejecta 56 Milky Way Galaxy 56 terrestrial planets 56 supermassive black hole 55 gamma ray burst 55 accreting 55 gravitational tug 55 interstellar medium 55 orbiting 55 comet 55 comet nucleus 55 COROT 55 quasars 54 distant galaxies 54 Sedna 54 interstellar dust 54 Enceladus 54 extrasolar planets 53 exoplanet 53 XMM Newton 53 supernovae 53 Kuiper Belt 53 heliosphere 53 meteoroids 53 spiral galaxies 53 exoplanets 53 Spitzer Space Telescope 53 asteroid 53 unaided eye 53 suns 52 GRBs 52 supermassive black holes 52 Iapetus 52 corona 52 Cassiopeia 52 fainter 52 coronal mass ejection 52 Jupiter Saturn Uranus 52 Saturn rings 52 perigee 52 rover Opportunity 51 Itokawa 51 elliptical orbit 51 solar flares 51 comets 51 gamma rays 51 redshift 51 moon Titan 51 Solar System 51 outer planets 51 Earth magnetosphere 51 atomic nuclei 51 Uranus 51 silicates 51 galaxy clusters 51 radioactive decay 51 deuterium 51 magnetosphere 50 sunspot