Related by context. Frequent words. (Click for all words.) 67 Milky Way Galaxy 66 HD #b [002] 65 Alpha Centauri 64 planet orbiting 64 planets orbiting 64 distant galaxy 64 Large Magellanic Cloud 63 galaxy 61 orbits 61 Eta Carinae 61 supernova remnant 61 brown dwarf 60 Orion Nebula 60 spiral galaxy 60 dwarf galaxy 59 Milky Way 59 Milky Way galaxy 59 Betelgeuse 58 orbiting 58 brown dwarfs 58 Gliese 58 Sedna 57 supernova 57 supernova explosion 57 nebula 57 distant galaxies 57 planets 56 neutron star 56 quasar 56 extrasolar planet 56 gamma ray burst 56 globular clusters 55 galaxy cluster 55 exoplanet 55 XMM Newton 55 Andromeda 55 Solar System 55 Arcturus 55 pulsar 54 comet nucleus 54 quasars 54 galactic 54 redshift 54 fainter 54 rocky planets 54 exoplanets 54 suns 54 spiral galaxies 54 galaxies 54 unaided eye 53 GRBs 53 X ray emission 53 super Earths 53 supernovae 53 elliptical galaxies 53 extrasolar planets 53 planet 53 Pleiades 53 infrared telescope 52 Deneb 52 constellation 52 supermassive black hole 52 nebulae 52 dwarf galaxies 52 comet 52 Earth 52 Lutetia 52 supernova explosions 52 outer planets 52 terrestrial planets 52 gamma rays 51 infrared wavelengths 51 optical telescopes 51 universe 51 gravitationally 51 telescope 51 Uranus 51 circular orbit 51 supernovas 51 perigee 51 corona 51 Pluto 51 astronomers 51 ringed planet 51 Hubble Telescope 51 hot Jupiters 50 Cassiopeia 50 orbited 50 Spitzer Space Telescope 50 optical telescope 50 celestial objects 50 gamma ray bursts 50 planetary 50 orbiting telescope 50 neutron stars 50 Orbiting 49 interstellar dust 49 pulsars 49 celestial bodies 49 ecliptic 49 Scorpius