Related by context. Frequent words. (Click for all words.) 64 dwarf galaxy 64 distant galaxy 63 supernova remnant 63 spiral galaxies 63 galaxy cluster 63 quasar 62 spiral galaxy 62 globular cluster 62 Andromeda Galaxy 62 Eta Carinae 62 Orion Nebula 61 elliptical galaxies 61 globular clusters 61 GRBs 61 Andromeda galaxy 61 X ray emission 60 HD #b [002] 60 distant galaxies 60 Large Magellanic Cloud 59 XMM Newton 59 planets orbiting 59 supernova explosion 59 planet orbiting 59 nebulae 59 galaxies 58 galaxy clusters 58 astronomical objects 58 brown dwarfs 58 extrasolar planets 58 rocky planets 57 nebula 57 magnetar 57 supernovae 57 infrared wavelengths 57 dwarf galaxies 57 Mimas 57 brown dwarf 57 quasars 56 gravitational lensing 56 Saturn rings 56 exoplanets 56 neutron stars 56 Milky Way Galaxy 56 supernova 56 supermassive black hole 56 gamma ray bursts 56 supermassive black holes 55 supernova explosions 55 Spitzer Space Telescope 55 super Earths 55 gamma ray burst 55 constellation Leo 55 galaxy formation 55 supernovas 55 redshift 55 auroral 54 WIMPs 54 Milky Way galaxy 54 unaided eye 54 hot Jupiters 54 ringed planet 54 neutron star 54 starbursts 54 ESO Very Large Telescope 54 Milky Way 54 Kuiper belt 54 interferometry 54 extrasolar planet 54 muons 54 Saturn moon Enceladus 54 ionized gas 54 ejecta 53 celestial object 53 X ray Observatory 53 GeV 53 ecliptic 53 pulsars 53 positrons 52 orbits 52 astronomers 52 spectroscopic 52 optical telescopes 52 COROT 52 comet nucleus 52 Betelgeuse 52 Pleiades 52 interstellar dust 52 NASA Cassini spacecraft 52 planets 52 galaxy 52 gravitationally 52 Very Large Telescope 52 habitable planets 51 gravitational waves 51 celestial objects 51 Leonids 51 spectra 51 infrared telescope 51 pulsar 51 filaments 51 auroras