
Why Some Skies Look Bluer Than Others
The sky’s color is more than a scenic backdrop. New reporting highlights how atmospheric physics, aerosols and pollution can turn deep blue skies milky white, making visible what is suspended in the air around us.
- Blue skies arise from Rayleigh scattering, which favors shorter wavelengths of light.
- Larger particles such as aerosols, smoke and moisture produce Mie scattering that can make skies appear white or hazy.






