Why is the Sky Blue and Sunsets Red?

Sunlight travels through Earth’s atmosphere where it is redirected by gas molecules and small particles into various directions, with blue wavelengths becoming scattered more readily than others, giving the sky its characteristic color during daylight hours. Sunrise and sunset sunlight must pass through more of the atmosphere, leading to more blue being scattered away and…

Physics – Why is the Sky Blue and Sunsets Red?

As sunlight travels through the atmosphere, its light is scattered by air molecules and particles, with shorter wavelengths such as violet and blue being dispersed more widely than longer ones (red). Sky blue color comes from sunlight which has passed through our atmosphere; lunar illumination does not have this same impact, since its beam hasn’t…