Related by context. Frequent words. (Click for all words.) 54 glow 53 orange glow 51 unaided eye 51 rays 50 sunlight 49 glows 49 infrared radiation 48 twinkles 47 luminous 47 distant galaxy 47 X ray emission 46 sun 46 luminescence 46 golden glow 46 starlight 46 dimmest 45 warm glow 45 flicker 45 flickering 45 infrared 45 brightness 45 infrared wavelengths 45 fluorescence 45 aurora 44 dimness 44 dim 44 radiance 44 galaxy cluster 44 darkening sky 44 shimmer 44 starry sky 44 blackness 44 HD #b [002] 44 luminosity 44 smoke plumes 44 fireflies 43 ambient light 43 interferometry 43 supernova remnant 43 cloudy sky 43 glimmering 43 gamma rays 43 clouds 43 UV light 43 yellowish 43 bluish 43 misty 43 shines brightly 43 squints 43 sun rays 42 bioluminescent 42 pale blue 42 flickers 42 lightning flashes 42 squinted 42 bright sunlight 42 infra red 42 cosmic microwave background 42 photons 42 moonlight 42 gazing 42 twinkled 42 ultraviolet light 42 fluoresce 42 darkness 42 glowed 42 radiant 41 illumination 41 gaze 41 cloudy 41 dimly 41 faint 41 squinting 41 Eta Carinae 41 inky black 41 gazes 41 radiating 41 sky 41 reflectivity 41 sunlit 41 darkening 41 NASA Aqua 41 sun shining 41 dark 41 shining 41 smoky haze 41 XMM Newton 40 grayness 40 mist 40 Betelgeuse 40 ultraviolet radiation 40 nebula 40 shimmering 40 florescent 40 iridescent 40 shadows 40 greenish 40 refracted 40 shimmers 40 Perseid meteor shower 40 whitish