Related by context. Frequent words. (Click for all words.) 64 magnetar 61 supernova explosion 61 supernova remnant 60 Eta Carinae 59 quasars 59 supernova 58 galaxy cluster 58 X ray emission 58 XMM Newton 58 quasar 58 redshift 57 dwarf galaxy 57 COROT 57 HD #b [002] 57 pulsar 56 planet orbiting 56 supernovae 56 neutron star 55 distant galaxy 55 extrasolar planet 55 GRBs 55 Milky Way Galaxy 55 supernova explosions 54 distant galaxies 54 pulsars 54 gravitational wave 54 ESO Very Large Telescope 54 globular clusters 54 nebula 54 supernovas 54 gamma ray burst 54 Large Magellanic Cloud 54 gravitational lensing 53 comet nucleus 53 galaxy clusters 53 cosmic microwave background 52 supermassive black hole 52 galaxies 52 brown dwarf 52 ejecta 52 X ray Observatory 52 gamma ray bursts 52 supermassive black holes 52 elliptical galaxies 52 Milky Way galaxy 51 Saturn rings 51 brown dwarfs 51 Jupiter moons 51 spiral galaxy 51 infrared telescope 51 spectroscopic 51 galaxy 51 Milky Way 51 gravitational waves 51 Orion Nebula 51 quark gluon plasma 51 cosmic ray 51 spacetime 51 comet Wild 51 cosmic rays 50 Andromeda Galaxy 50 general relativity 50 neutron stars 50 Betelgeuse 50 astrophysical 50 Very Large Telescope 50 exoplanet 50 electron volts 50 Astrophysical Journal Letters 50 quantum gravity 50 interferometry 50 nebulae 50 neutrino 49 planets orbiting 49 spiral galaxies 49 extrasolar planets 49 NASA Chandra 49 torus 49 gamma ray 49 ringed planet 49 spectra 49 comet 49 Very Large Array 49 astronomers 49 gamma rays 49 neutrinos 49 cosmological 49 atomic nucleus 49 accreting 49 corona 49 optical telescopes 49 exoplanets 48 anisotropy 48 interstellar dust 48 ellipse 48 super Earths 48 rocky planets 48 astronomical observations 48 Mahler Symphony No. 48 WM Keck Observatory 48 spectrograph