In layman’s terms: blue light is a higher frequency wave. Red light is low frequency. Higher frequencies get attenuated quicker with distance. This is essentially the same reason AM radio (low frequency) will travel further than FM radio (high frequency).
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Also, here is a picture that might help others to understand better. Easier to see that when the sun is directly over head, there is less atmosphere (i.e. less Rayleigh scattering) vs at sunset (more atmosphere = further distance).pic.twitter.com/WiziR9MxyU
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While on Mars sunsets are blue! Due to a thin atmosphere and lots of dust particles (less gravity), Mie Scattering dominates over Rayleigh scattering on Mars. As a consequence, Blue light is less deflected!pic.twitter.com/K2T8k6yhfV
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As a man who doesn't undestand physics at all this tweet was totally useless but thanks anyway
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Here, I gotchu. So basically during a sunset/sunrise,the light near horizon has to pass a thick atmospheric layer during which most the low wavelength light like the blue get scattered and only the high wavelength light (red) is able to reach our eyes. Hence the sun appears red
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Related question: why do we the observe every color in the sky except for green? Even though green isn't an extreme in either direction in terms of wavelength?
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Some stormy skies show lots of green
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