Frequently asked questions
The blue color of the sky is primarily due to a phenomenon called Rayleigh scattering. Rayleigh scattering occurs when sunlight, which is composed of various colors of light, interacts with the molecules and particles in Earth’s atmosphere.
The reason the sky is not red during the daytime is because the shorter blue and violet wavelengths are scattered in all directions, and they dominate our view of the sky. While some red and yellow light is also scattered, it is scattered less efficiently, and most of it continues through the atmosphere without significant scattering. As a result, the sky appears predominantly blue.
To change the color of the sky to purple, you would need to significantly alter the atmospheric conditions and the way light scatters. This would likely require advanced technology and would be beyond the capabilities of any known human activity.