Why is the sky blue? (100% serious question!)

The sky appears blue because of a phenomenon known as Rayleigh scattering. When sunlight enters the Earth's atmosphere, it collides with gas molecules such as nitrogen and oxygen. These collisions cause the sunlight to scatter in all directions.

The blue color of the sky is a result of the shorter wavelength blue light being scattered more than the other colors in the spectrum. This means that blue light is dispersed in all directions and reaches our eyes from all parts of the sky. As a result, the sky appears blue to us.

It's worth noting that the color of the sky can change depending on various factors such as the time of day, the weather, and the location. For example, during sunrise and sunset, the sky can appear more red or orange due to the scattering of longer wavelength colors.

Source: Some or all of the content was generated using an AI language model