Why is the Sky Blue?
Why is the sky blue the presence of molecules in the atmosphere that serve to scatter away from the sun blue light more than the red light. When we take a look towards the sun in the course of sunset, we see orange red colors owing to the fact that the light that is blue in color has already been scattered away and out of the sight line. Transmitted light is made up of a spectrum of colors. The longest wavelengths of light are on the red end of the spectrum and the shortest wavelengths are on the blue/violet end of the spectrum.