Related by context. Frequent words. (Click for all words.) 52 illuminated 52 haloes 51 unaided eye 51 reddish hue 50 dun colored 50 refracting 50 bluish 50 luminous 50 inky black 49 Crab Nebula 49 obscured 49 shimmering 49 constellation Leo 48 faint glow 48 glimpsed 48 aurorae 48 reddish 48 smoke plumes 48 eerie glow 48 twinkles 48 billowing clouds 48 iridescent blue 47 blindingly bright 47 visible wavelengths 47 starbursts 47 planetary nebula 47 stippled 47 spotlit 47 starry sky 47 grayish 47 visible 47 comet tail 47 sunbeams 46 refracted 46 inky 46 blackish 46 luminescent 46 Hawking radiation 46 Andromeda galaxy 46 pinkish 46 ghostly 46 constellation Perseus 46 Gamma ray bursts 45 latticed 45 dimly 45 cerulean 45 iridescent 45 nebulae 45 glimmering 45 starlight 45 lightless 45 planetary nebulae 45 leafless trees 45 distant galaxy 45 constellation Orion 45 optical wavelengths 45 dappled 45 haloed 45 muzzle flashes 45 twinkling stars 45 azure 45 wispy clouds 45 diaphanous 45 Thick clouds 45 blueness 45 X ray emission 45 whorls 44 silvery 44 rectilinear 44 camera obscura 44 perfectly symmetrical 44 mottled 44 Cepheids 44 plainly visible 44 moonless 44 starlit 44 Oort Cloud 44 striations 44 smudgy 44 blackness 44 reddish color 44 lightning flashes 44 orbiting planets 44 tracery 44 shiny metallic 43 concentric rings 43 purplish 43 refracts 43 pockmark 43 tiny specks 43 Orion Nebula 43 sunbeam 43 sunlit 43 observable universe 43 blankness 43 bluish gray 43 dark 43 twinkling 43 cumulus 43 coppery 43 dimness