Related by context. Frequent words. (Click for all words.) 72 Large Magellanic Cloud 66 Orion Nebula 65 spiral galaxy 64 supernova remnant 63 Milky Way galaxy 63 Andromeda galaxy 63 dwarf galaxy 63 globular cluster 63 globular clusters 62 galaxy cluster 62 distant galaxy 62 Milky Way Galaxy 61 Andromeda Galaxy 60 planets orbiting 60 spiral galaxies 59 nebula 59 galaxies 59 dwarf galaxies 59 brown dwarf 59 distant galaxies 59 planet orbiting 59 quasar 59 quasars 59 Eta Carinae 58 X ray emission 58 galaxy 58 redshift 58 supermassive black hole 58 unaided eye 58 HD #b [002] 57 elliptical galaxies 57 brown dwarfs 57 magnetar 57 Milky Way 56 rocky planets 56 astronomical objects 56 infrared wavelengths 56 neutron star 56 GRBs 56 Betelgeuse 55 supernova explosion 55 Spitzer Space Telescope 55 Kuiper Belt 55 ejecta 55 galaxy clusters 55 terrestrial planets 54 optical telescopes 54 gamma ray burst 54 interstellar dust 54 XMM Newton 54 neutron stars 54 supernovae 54 super Earths 54 orbits 54 nebulae 53 auroral 53 supernova 53 X ray Observatory 53 pulsars 53 pulsar 53 exoplanet 52 exoplanets 52 interstellar medium 52 Solar System 52 hot Jupiters 52 Very Large Telescope 52 extrasolar planets 52 extrasolar planet 52 olivine 51 supermassive black holes 51 supernova explosions 51 interferometry 51 fainter 51 nuclei 51 ESO Very Large Telescope 51 spectroscopic 51 supernovas 51 Sedna 51 planets 51 celestial objects 51 silicates 51 astronomers 50 Gliese 50 gamma ray bursts 50 comet nucleus 50 Very Large Array 50 magnetosphere 50 Jupiter Saturn Uranus 50 WM Keck Observatory 50 optical telescope 50 ringed planet 50 NASA Chandra 50 meteoroids 49 telescopes 49 gamma rays 49 photometric 49 reddish 49 cosmic microwave background 49 wavelengths 49 starbursts 49 Cassiopeia