Why is the sky blue?
It has nothing to do with reflecting the ocean.
The answer
Rayleigh scattering causes shorter blue wavelengths of sunlight to scatter more in Earth's atmosphere than longer red wavelengths. This scattered blue light reaches our eyes from all directions, making the sky appear blue. At sunset, light travels through more atmosphere, scattering away most blue light and letting reds and oranges dominate.
Source: NASA Science
- physics
- light
- atmosphere
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