Related by context. Frequent words. (Click for all words.) 52 nebula 50 supernova explosion 50 supernova 49 spiral galaxy 49 nebulae 49 ellipse 48 hexagon 48 multicolored 48 galaxies 47 vortices 47 pinwheel 47 auroras 47 galaxy cluster 46 globular 46 neutron star 46 spiral galaxies 46 gamma ray burst 46 supernovas 46 corona 46 geometric patterns 46 aurora 46 supernovae 46 elliptical galaxies 45 galaxy clusters 45 neutron stars 45 distant galaxy 45 donut shaped 45 multicolor 45 tiger stripes 44 quasar 44 neon 44 gamma rays 44 filaments 44 Milky Way Galaxy 44 florescent 44 orb 44 luminosity 44 galaxy 44 sunspot 43 comet 43 supermassive black hole 43 sunburst 43 cosmic microwave background 43 quasars 43 gravitational lensing 43 supermassive black holes 43 spherical 42 Milky Way galaxy 42 hexagons 42 ringed planet 42 saucer shaped 42 laser pulse 42 oblong 42 luminous 42 magnetic fields 42 suns 42 swirly 42 petal 42 iridescent 42 concentric rings 42 lobes 42 nuclei 42 colored dots 42 rectangles 42 bright orange 41 spacetime 41 solar flares 41 Iapetus 41 squiggles 41 contrasting colors 41 magnetosphere 41 distant galaxies 41 concentric 41 Saturn rings 41 halos 41 GRBs 41 cosmic 41 filament 41 reddish orange 41 teardrop shaped 41 Milky Way 41 fluorescent dye 41 NASA Chandra 40 conical 40 brightly colored 40 blobs 40 aurora borealis 40 luminescence 40 gamma ray bursts 40 lattice 40 cigar shaped 40 moons 40 Betelgeuse 40 turquoise 40 crescent moon 40 fluorescent 40 twinkles 40 rectangle 40 spangled 40 anemone 40 violet