Related by context. Frequent words. (Click for all words.) 66 magnetars 64 Gamma ray bursts 64 WASP #b 64 active galactic nuclei 63 planetary nebulae 62 Gamma rays 61 magnetar 60 elliptical galaxies 59 supernova remnants 59 X ray emission 58 supernova explosion 58 supernova explosions 58 globular cluster 58 neutron star 58 supernovas 57 Cosmic rays 57 nebulae 57 redshifts 57 Oort Cloud 57 HD #b [002] 57 supernovae 57 solar nebula 57 brown dwarfs 57 neutron stars 56 hot Jupiters 56 subatomic particle 56 Orion Nebula 56 Type Ia supernovae 56 planetary nebula 56 GRBs 56 quasars 56 solar corona 56 galaxy clusters 56 planet orbits 56 galaxies 56 shorter wavelengths 56 globular clusters 55 Eta Carinae 55 super Earths 55 nanosized 55 colliding galaxies 55 accreting 55 gamma ray bursts 55 pulsars 55 kelvin 55 subatomic particles 54 Milky Way Galaxy 54 astrophysical 54 astronomical objects 54 Pulsars 54 quark gluon plasma 54 planets circling 54 distant galaxies 54 Crab Nebula 54 ionized gas 54 accretion disk 54 planets 54 supernova 54 gamma ray burst 54 WIMPs 54 rocky planets 54 dwarf galaxy 54 GeV 54 Cepheids 54 Cancri 53 Neutrinos 53 auroral 53 observable universe 53 muons 53 Hawking radiation 53 neutrinos 53 gamma rays 53 Galaxy Evolution 53 brown dwarf 53 visible wavelengths 53 distant galaxy 53 atomic nucleus 53 galaxy formation 53 quasar 53 extrasolar planet 53 magnetic fields 53 spiral galaxies 53 galaxy cluster 53 galaxy 52 suns 52 bosons 52 particle detectors 52 optical telescopes 52 proton collisions 52 planets orbiting 52 Astrophysicists 52 planet orbiting 52 particle accelerators 52 nuclei 52 excitations 52 dwarf galaxies 52 supernova remnant 52 fermions 52 starbursts 52 cosmic rays 52 fluorescing