Related by context. Frequent words. (Click for all words.) 68 Eta Carinae 68 supernova explosion 67 distant galaxy 67 nebula 66 globular cluster 66 supernova remnant 66 X ray emission 66 magnetar 65 spiral galaxy 64 Milky Way Galaxy 64 Andromeda galaxy 64 Large Magellanic Cloud 64 galaxy cluster 64 dwarf galaxy 64 Orion Nebula 63 Betelgeuse 63 quasar 63 Andromeda Galaxy 62 gamma ray burst 62 quasars 62 galaxy 62 GRBs 62 nebulae 61 ionized gas 61 XMM Newton 61 supermassive black hole 61 planet orbiting 61 supernova 61 supernova explosions 61 distant galaxies 61 Milky Way galaxy 60 constellation Leo 60 supernovae 60 interferometry 60 neutron star 59 astronomical objects 59 HD #b [002] 59 brown dwarf 59 neutron stars 59 infrared wavelengths 58 celestial object 58 unaided eye 58 planets orbiting 58 redshift 58 GeV 58 astrophysical 58 ESO Very Large Telescope 57 gamma ray bursts 57 luminosity 57 supernovas 57 galaxies 57 elliptical galaxies 57 corona 57 dwarf galaxies 57 pulsar 57 globular clusters 57 spiral galaxies 57 supermassive black holes 56 starbursts 56 extrasolar planet 56 gamma rays 56 Scorpius 56 galaxy clusters 56 gravitational wave 56 gamma ray 56 fainter 56 Milky Way 56 rocky planets 56 ejecta 56 Very Large Telescope 56 brown dwarfs 56 COROT 55 X ray Observatory 55 auroral 55 exoplanets 55 extrasolar planets 55 accreting 55 ringed planet 55 gravitational lensing 55 pulsars 55 exoplanet 55 Iapetus 55 WM Keck Observatory 55 planets 55 optical telescope 55 spacetime 55 celestial objects 55 terrestrial planets 55 Solar System 54 comet nucleus 54 Earth magnetosphere 54 Mimas 54 habitable planets 54 substorms 54 suns 54 heliosphere 54 torus 54 constellation 54 optical telescopes 54 orbiting 54 galactic