Related by context. Frequent words. (Click for all words.) 68 planet orbiting 66 distant galaxy 65 brown dwarf 65 HD #b [002] 64 planets orbiting 64 galaxy cluster 64 Orion Nebula 63 rocky planets 62 globular cluster 62 Andromeda galaxy 62 Eta Carinae 62 dwarf galaxy 62 Large Magellanic Cloud 62 supernova explosion 61 brown dwarfs 61 supernova remnant 61 spiral galaxy 61 X ray emission 61 elliptical galaxies 61 Sedna 61 quasar 60 super Earths 60 gamma ray burst 60 magnetar 60 celestial object 60 extrasolar planet 60 Milky Way Galaxy 60 Milky Way galaxy 60 redshift 60 extrasolar planets 59 globular clusters 59 XMM Newton 59 Andromeda Galaxy 59 Betelgeuse 59 nebula 59 neutron star 58 galaxy 58 orbits 58 supernova 58 exoplanet 58 galaxies 58 Gliese 58 dwarf galaxies 58 planets 57 GRBs 57 exoplanets 57 optical telescopes 57 quasars 57 COROT 57 Spitzer Space Telescope 57 terrestrial planets 56 constellation Leo 56 infrared wavelengths 56 unaided eye 56 constellation Perseus 56 distant galaxies 56 fainter 56 geologically active 56 Milky Way 56 infrared telescope 56 pulsar 56 supernova explosions 55 supernovae 55 Kuiper Belt 55 astronomers 55 Iapetus 55 X ray Observatory 55 olivine 55 galaxy clusters 54 Very Large Telescope 54 habitable planets 54 WM Keck Observatory 54 spiral galaxies 54 supermassive black hole 54 accreting 54 ringed planet 54 ionized gas 54 ejecta 54 orbiting 54 equatorial 54 moons 54 gravitationally 54 comet 53 astronomical objects 53 Mimas 53 pulsars 53 interstellar dust 53 optical telescope 53 neutron stars 53 starlight 53 comet nucleus 53 meteoroids 52 interstellar medium 52 spectra 52 hot Jupiters 52 spectroscopic 52 ESO Very Large Telescope 52 silicates 52 perigee 52 occultation 52 suns