The sky isn't just blue by chance. It takes all the colors of the rainbow for us to see it that way. It happens because of something called the Rayleigh effect, or Rayleigh scattering, named after a ...

Most of us have heard the weather proverb “red skies at night, sailors delight; red skies at morning, sailors take warning.” I certainly enjoy watching a beautiful red sunset, but for those of us in ...

When the sun is straight up at noon, you see blue sky because all the other colors in the spectrum up until blue and purple are scattered away. This is known as the Rayleigh effect. We usually don't ...

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists. T he sky isn't just blue by chance. I t takes ...