Why is the sky blue?

The blue color of the sky is due to the scattering of sunlight by the gases and particles in the Earth's atmosphere. This scattering, known as Rayleigh scattering, causes shorter (blue) wavelengths of light to be scattered more than longer (red) wavelengths. As a result, the blue light is scattered in all directions and makes the sky appear blue to our eyes. This phenomenon is a fundamental concept in the field of physics and helps us understand the behavior of light in the atmosphere.

Understanding the science behind the color of the sky gives us a fascinating insight into the interaction between light and matter in our natural environment.