I’ve always heard about “scattering” and that blue light is “scattered more,” but what does that really mean? Why can the sky become red/orange as well then?
In: Physics
The color if the sky is caused by light hitting the air molecules. When the sun is directly overhead, the thickness of the atmosphere causes it to mostly scatter blue light.
As the sun is rising or setting, to look at it, you are looking through much more atmosphere (since you’re not going through the atmosphere in a straight line). The extra thickness of the atmosphere means that it will cause other colours of light to scatter, giving us those yellow/orange/red sunsets.
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