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 ...

On a bright, clear day, the sky stretches above us in a brilliant ... These molecules scatter light in all directions, but because blue light has a shorter wavelength, it is scattered much more ...

Sometimes the light runs right into one of them. In short, the sky looks blue because the blue portion of sunlight is much more likely to bounce off the molecules in the atmosphere than the ...