Related by context. Frequent words. (Click for all words.) 73 Eta Carinae 71 magnetar 70 supernova explosion 70 supernova 70 dwarf galaxy 70 GRBs 69 quasar 69 X ray emission 68 supernovae 68 supernova remnant 68 distant galaxy 68 gamma ray burst 67 supernovas 67 globular cluster 66 Orion Nebula 66 neutron star 66 nebula 66 globular clusters 66 spiral galaxy 65 elliptical galaxies 65 gamma ray bursts 65 HD #b [002] 65 supernova explosions 65 XMM Newton 65 galaxy cluster 64 pulsar 64 spiral galaxies 64 Saturn rings 64 neutron stars 64 quasars 63 pulsars 63 planet orbiting 63 Andromeda galaxy 63 brown dwarf 63 redshift 62 nebulae 62 Andromeda Galaxy 62 gravitational lensing 62 Large Magellanic Cloud 61 galaxies 61 supermassive black holes 61 brown dwarfs 61 galaxy clusters 61 Milky Way Galaxy 61 dwarf galaxies 61 Betelgeuse 61 planets orbiting 60 comet nucleus 60 Milky Way galaxy 60 supermassive black hole 60 astronomers 60 NASA Chandra 60 auroral 60 ejecta 60 celestial object 59 distant galaxies 59 interferometry 59 cosmic microwave background 59 astronomical objects 59 Milky Way 59 extrasolar planets 59 quark gluon plasma 59 extrasolar planet 58 comet 58 exoplanets 58 Spitzer Space Telescope 58 galaxy 58 gravitational wave 58 spacetime 57 gravitational waves 57 gamma rays 57 corona 57 accreting 57 rocky planets 57 cosmologists 57 exoplanet 57 interstellar dust 57 torus 56 interstellar medium 56 neutrino 56 COROT 56 spectra 56 spectroscopic 56 planets 56 gamma ray 56 ESO Very Large Telescope 56 positrons 56 astrophysical 56 WIMPs 56 astrophysicists 56 nuclei 55 atomic nuclei 55 X ray Observatory 55 occultation 55 morphologies 55 super Earths 55 photonic crystal 55 subatomic particles 55 substorms 55 muon 55 unaided eye