T he sky isn't just blue by chance. I t takes all the colors of the rainbow for us to see it that way. I t happens because of something called the Rayleigh effect, or Rayleigh scattering ...

To uncover the mystery of the sky’s blue hue, we first need to understand sunlight. Though it appears white to our eyes, sunlight is a blend of all the colors of the rainbow. Each color ...

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation for why the sky is blue: blue light from the sun is scattered the most when ...