Related by context. Frequent words. (Click for all words.) 70 magnetar 68 Eta Carinae 67 X ray emission 66 supernova 66 GRBs 65 supernova explosion 64 elliptical galaxies 64 dwarf galaxy 63 accretion disk 63 gamma ray burst 63 planet orbiting 62 distant galaxy 62 supernovae 61 globular clusters 61 supernova remnant 61 supernova explosions 61 neutron star 61 supernovas 60 brown dwarfs 60 globular cluster 60 quasars 60 ejecta 60 HD #b [002] 60 dwarf galaxies 60 gamma rays 59 redshift 59 gamma ray bursts 59 neutron stars 59 cosmic ray 59 pulsars 59 galaxy clusters 59 spiral galaxies 59 pulsar 58 quark gluon plasma 58 brown dwarf 58 galaxies 58 neutrino 58 quasar 58 extrasolar planet 58 meteoroid 58 positrons 58 gravitational wave 57 WIMPs 57 muon 57 galaxy cluster 57 distant galaxies 57 nebula 57 supermassive black hole 57 celestial object 57 Large Magellanic Cloud 57 gravitational lensing 56 galaxy formation 56 astronomical objects 56 habitable planets 56 rocky planets 56 Gliese #g 56 atomic nuclei 56 Bose Einstein condensate 56 aerosol particles 55 positron 55 Betelgeuse 55 cosmic rays 55 luminosity 55 accreting 55 supermassive black holes 55 interstellar medium 55 gravitationally 55 muons 55 gravitational waves 55 Milky Way Galaxy 55 supersymmetry 55 hot Jupiters 55 auroral 55 Kuiper belt 55 super Earths 54 ionized gas 54 XMM Newton 54 Saturn rings 54 astrophysicists 54 terrestrial planets 54 atomic particles 54 nuclei 54 spiral galaxy 54 interstellar dust 54 X ray Observatory 54 Orion Nebula 54 Andromeda Galaxy 54 WMAP 54 planets orbiting 54 atomic nucleus 54 cosmic microwave background 54 astronomical observations 54 Andromeda galaxy 54 radioactive decay 54 olivine 54 neutrinos 54 spacetime 53 substorms 53 morphologies 53 infrared radiation 53 exoplanets