Related by context. Frequent words. (Click for all words.) 60 supernova explosions 60 WASP #b 59 supernova explosion 57 Gamma ray bursts 57 accreting 57 dwarf galaxy 56 planet orbits 56 active galactic nuclei 56 Pulsars 55 supernova remnants 55 neutron star 55 planetary nebulae 55 globular cluster 55 magnetar 55 colliding galaxies 54 magnetars 54 planetary nebula 54 gravitationally 54 accretion disk 54 ionized gas 54 Eta Carinae 53 X ray emission 53 Cosmic rays 53 nebulae 52 globular clusters 52 gravitational attraction 52 spiral galaxies 52 neutron stars 52 planetesimals 52 Crab Nebula 52 solar nebula 51 supernovas 51 Andromeda galaxy 51 interstellar medium 51 Cepheids 51 supernova remnant 51 galaxies 51 pulsar 51 GRBs 51 galaxy 51 supermassive black holes 51 Type Ia supernovae 50 pulsars 50 supernova 50 Milky Way Galaxy 50 hot Jupiters 50 supernovae 50 star Gliese 50 gravitational tug 50 orbits 50 moonlets 50 orbiting planets 50 supermassive black hole 50 galaxy formation 50 gamma ray bursts 50 gamma ray burst 50 Gamma rays 49 constellation Leo 49 brown dwarf 49 outer layers 49 polar vortex 49 galaxy clusters 49 Phaethon 49 elliptical galaxies 49 interstellar dust 49 outer crust 49 constellation Perseus 49 lithosphere 49 super Earths 48 Kyles puts local 48 GRB # 48 Oort Cloud 48 observable universe 48 spiral galaxy 48 Gliese #g 48 ejecta 48 planet orbiting 48 comet tail 48 brown dwarfs 48 quasar 48 orbiting 48 Saturn moon Enceladus 48 atomic nuclei 48 galaxy cluster 48 dwarf galaxies 48 Galaxy Evolution 47 Saturn rings 47 meteoroids 47 coronal mass ejection 47 Jupiter Saturn Uranus 47 subatomic particles 47 supercontinent 47 pyroclastic flow 47 Betelgeuse 47 Large Magellanic Cloud 47 Milky Way 47 Orion Nebula 47 Kuiper belt 47 Cancri 47 Milky Way galaxy 47 constellation Orion