Related by context. Frequent words. (Click for all words.) 67 Milky Way Galaxy 67 Andromeda galaxy 67 constellation Leo 67 HD #b [002] 66 Andromeda Galaxy 65 Betelgeuse 64 constellation Perseus 64 distant galaxy 63 Orion Nebula 62 globular cluster 62 planet orbiting 62 galaxy cluster 62 supernova remnant 61 Eta Carinae 61 nebula 61 spiral galaxy 61 Milky Way 60 Milky Way galaxy 60 planets orbiting 60 magnetar 60 accretion disk 59 supernova explosion 59 X ray emission 59 quasar 59 Large Magellanic Cloud 58 spiral galaxies 58 ecliptic 58 dwarf galaxy 58 celestial object 58 Deneb 58 ringed planet 57 galaxy 57 ionized gas 57 gamma ray burst 57 brown dwarfs 57 extrasolar planet 57 brown dwarf 56 Scorpius 56 nebulae 56 Kuiper belt 56 Gliese #g 56 elliptical galaxies 56 neutron star 56 supermassive black hole 56 rocky planets 56 Arcturus 56 infrared wavelengths 56 planets 55 suns 55 distant galaxies 55 Gliese 55 GeV 55 quasars 55 Very Large Telescope 55 super Earths 54 supernova 54 orbiting 54 exoplanets 54 unaided eye 54 Cassiopeia 54 WM Keck Observatory 54 Opportunity rover 54 Sedna 54 globular clusters 54 extrasolar planets 54 galaxy clusters 54 COROT 54 Iapetus 54 galactic 54 galaxies 54 pulsar 53 GRBs 53 Spitzer Space Telescope 53 supernova explosions 53 Saturn moon Enceladus 53 terrestrial planets 53 XMM Newton 53 neutron stars 53 exoplanet 53 elliptical orbit 53 Mimas 53 fainter 53 constellation 53 redshift 52 hot Jupiters 52 gamma ray bursts 52 Enceladus 52 habitable planets 52 orbits 52 moon Charon 52 celestial objects 52 Jupiter moons 52 Pleiades 52 comet nucleus 52 X ray Observatory 52 gamma rays 52 ejecta 52 astronomical objects 52 supernovas 52 Earth magnetosphere 52 Little Dipper