Why Is the Sky Blue? | Britannica
https://www.britannica.com/story/why-is-the-sky-blue
WEBShorter wavelengths of light, such as violet and blue, are more easily absorbed by air molecules than light from longer wavelengths (that is, from red, orange, and yellow bands in the spectrum). Air molecules then radiate violet and blue light in different directions, saturating the sky.
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