Why do some clouds turn pink around dusk?
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Tookie Clothespin is just that good.
ANSWERS: 2
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Ultimately, it's the same reason the sky is blue. At sunrise & sunset the sun's rays pass through much more atmosphere than at noon, so more blue light is scattered leaving red, orange & yellow hues to be seen directly. When the sun is just below the horizon & no longer visible from the ground, it still illuminates the clouds (especially high-altitude clouds) with those colors until it sinks further below the horizon.
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Sun light travels greater distance through atmosphere at dusk than it would if its shining directly above the head . As light (mixture of different colors) travels through the atmosphere other colors (shorter light waves like blue) scatter away and you receive what is left - longer light waves of red.
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