why do the sky turn blue during the day

Question: why do the sky turn blue during the day
- Keywords:
  sky
Asked by base20fen to Arnold, Edna, Elkana, Gliday, Jacinta, Michael, Mike, Mmboyi, Sally on 17 Jul 2025.
- Michael Kimwele answered on 17 Jul 2025:
  
  The sky appears blue during the day because of a phenomenon called Rayleigh scattering. When sunlight enters Earth’s atmosphere, it collides with tiny air molecules. These molecules scatter the light in all directions. Blue and violet light, having shorter wavelengths, are scattered more strongly than other colors, making the sky appear blue. Our eyes are also more sensitive to blue light, further contributing to the perception of a blue sky.

Question: why do the sky turn blue during the day