The Cool Physical Properties Behind Sky Color

The great American man of letters, Ralph Waldo Emerson, said, “The sky is the daily bread of the eyes.” At some time or other, we’ve all found ourselves on our backs, marveling at the fathomless blue space above us and spotting shapes in the clouds.
But the ever-changing colors of the sky, from deep indigo to red-gold fire, are not only beautiful but also scientifically fascinating. Our exploration into the physics behind sky color will take us from the properties of light rays, to the unique sunset variations caused by the position of clouds.

Full post: The Cool Physical Properties Behind Sky Color