However, from a scientific point of view, this kind of scene occurs because the sun is obscured by clouds, and at the edge of the clouds, there is an iridescent color that can be easily seen by the naked eye due to diffraction.Usually, sunglasses should be worn when observing such colorful clouds to protect eyesight.
Most of the time, the colorful clouds will appear after the rain, due to the abundant moisture in the atmosphere and the refraction of the sun.
When the sunlight passes through a fine cloud and the water droplets are suspended in the particles, the water droplets diffraction the light in different directions, and the diffracted light interferes with each other. Bright light will be seen at the junction of light waves, and dark light will be seen at the offset.
Different colors have different diffraction angles, and the bright areas of one color appear in the dark areas of another color, gradually forming a color sequence. The farther away from the sun, the lighter the color. Because the clouds are distributed in irregular flakes, irregular flaky colored clouds are produced.
To put it simply, the principle of the formation of colorful auspicious clouds is that after the rain, the dark clouds dispersed, and the refraction produced by the sun formed such a scene, which is a physical phenomenon.