Why Does the Sky Have so Many More Colors Than Blue?

Tatanka, 2015.”Light rays will tell you the story.
There is another alphabet
Whispering from every leaf,
Singing from every river,
Shimmering from every sky.”

Dejan Stojanović, Forgotten Home

During twilight, meaning the periods between dawn and sunrise as well as between sunset and dusk, the sun is not at its zenith but near the horizon. Therefore, the sun’s light has to travel much further through the atmosphere because of the curvature of the earth. The longer light travels, the more light with longer wavelengths gets scattered, causing yellow and reddish hues to dominate over the blue. This is why the sky is sometimes colorful and spectacular during these times of the day.