Related by context. Frequent words. (Click for all words.) 59 supernovae 59 globular clusters 56 supernova explosions 56 elliptical galaxies 55 spectra 55 X ray emission 55 GRBs 54 dwarf galaxies 54 brown dwarfs 54 supernovas 54 dwarf galaxy 53 supernova explosion 53 nebulae 53 planets orbiting 53 ejecta 53 redshift 52 Eta Carinae 52 supernova 52 quasars 51 positrons 51 quasar 51 magnetar 51 distant galaxies 51 XMM Newton 51 abundances 51 galaxies 50 galaxy clusters 50 COROT 50 spiral galaxies 50 neutron star 50 galaxy cluster 50 nuclei 50 supernova remnant 50 brown dwarf 50 interstellar medium 50 neutron stars 49 distant galaxy 49 pulsations 49 exoplanets 49 neutrino 49 Orion Nebula 49 gamma rays 49 gamma ray bursts 49 pulsars 49 amplitudes 49 muons 48 rocky planets 48 interferometry 48 spectroscopic 48 pulsar 48 comet nucleus 48 cosmic ray 48 laser pulses 48 gamma ray burst 48 HD #b [002] 47 GRB 47 deuterium 47 astronomers 47 X ray Observatory 47 supermassive black holes 47 FRET 47 neutrinos 47 gravitational lensing 47 photons 47 interstellar dust 47 astrophysicists 46 Large Magellanic Cloud 46 subatomic particles 46 gravitational waves 46 anisotropy 46 cosmic rays 46 extrasolar planet 46 spectral 46 optical telescopes 46 planet orbiting 46 photon 46 hot Jupiters 46 magnetic fields 46 gravitational wave 46 WMAP 46 extrasolar planets 45 infrared wavelengths 45 planets 45 occultation 45 astrophysical 45 Cassiopeia 45 Fluorescence 45 magnetization 45 ESO Very Large Telescope 45 terrestrial planets 45 photometric 45 accreting 45 nebula 45 substorms 45 super Earths 45 supermassive black hole 45 Milky Way Galaxy 45 luminosity 44 quark gluon plasma 44 isotopic 44 unaided eye