Why is the sky blue, and what causes the colors during sunrise and sunset?

Question

The sky appears blue due to Rayleigh scattering, where shorter blue light wavelengths scatter more than other colors as sunlight passes through the atmosphere. During sunrise and sunset, the sun's rays pass through more of the atmosphere, scattering blue light away and allowing longer red and orange wavelengths to dominate. This creates the vibrant colors seen at these times.

Answer 1

The sky appears blue because of Rayleigh scattering, where shorter wavelengths of light (blue) are scattered more than longer wavelengths (red) by molecules in the atmosphere. During sunrise and sunset, the sun’s light passes through a thicker layer of atmosphere, scattering shorter wavelengths and allowing longer wavelengths (reds and oranges) to dominate, creating the colorful hues we see.

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Answer 2

The sky appears blue due to Rayleigh scattering, where shorter wavelengths of light (blue and violet) scatter more easily in the atmosphere than longer wavelengths (like red and yellow). During sunrise and sunset, the sun's light must pass through more of the Earth's atmosphere, scattering shorter wavelengths and allowing longer wavelengths (red, orange, and pink) to dominate, creating the vibrant colors seen at these times.