Have you ever looked up at the sky and wondered why it's that beautiful blue color? It's not just a random choice of nature, but the result of a fascinating interplay of light and atmosphere. Sunlight, as we see it, is actually made up of all the colors of the rainbow. When this light reaches Earth, it's scattered in all directions by tiny air molecules. This scattering, known as Rayleigh scattering, affects blue light more than other colors, giving our sky its characteristic hue.