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 ...