Related by context. Frequent words. (Click for all words.) 64 nebula 63 nebulae 62 Orion Nebula 62 supernova explosions 62 magnetar 62 supernova remnant 62 X ray emission 61 supernova explosion 61 distant galaxies 61 planets 60 dwarf galaxy 60 GRBs 59 Large Magellanic Cloud 59 brown dwarfs 59 ejecta 58 rocky planets 58 elliptical galaxies 58 globular cluster 58 distant galaxy 58 quasars 58 galaxies 58 galaxy cluster 58 quasar 58 supernova 58 globular clusters 58 supernovae 58 galaxy clusters 58 dwarf galaxies 57 Saturn rings 57 gravitational lensing 57 auroral 57 brown dwarf 57 astronomical objects 57 Eta Carinae 57 spiral galaxy 57 spiral galaxies 57 starbursts 57 supernovas 57 super Earths 57 terrestrial planets 56 Milky Way galaxy 56 extrasolar planets 56 Betelgeuse 56 Iapetus 56 morphologies 56 hot Jupiters 56 meteoroids 56 Milky Way Galaxy 56 comets 56 planets orbiting 55 supermassive black holes 55 neutron star 55 Andromeda Galaxy 55 galaxy 55 magnetic fields 55 vortices 55 accreting 55 XMM Newton 54 HD #b [002] 54 infrared wavelengths 54 pulsars 54 interstellar medium 54 suns 54 silicates 54 neutron stars 54 comet 54 unaided eye 54 nuclei 54 Sunspots 54 Andromeda galaxy 54 heliosphere 54 exoplanets 54 torus 54 Cassiopeia 54 ringed planet 53 cosmic microwave background 53 gravitationally 53 Milky Way 53 gamma ray burst 53 supermassive black hole 53 moons 53 Spitzer Space Telescope 53 celestial bodies 53 astrophysical 53 gamma ray bursts 53 Earth magnetosphere 53 basalts 53 Sedna 52 aurora 52 Saturn moon Enceladus 52 quark gluon plasma 52 radioactive decay 52 auroras 52 coronal mass ejections 52 filaments 52 spacetime 52 cirrus clouds 52 gravitational waves 52 comet nucleus 52 magnetosphere 52 atomic nuclei