From: Why Is the Sky Blue but Sunsets Are Red?
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Want to see the most vivid sunsets?

Sunsets tend to be brighter and redder when there’s some dust or pollution in the air. That’s why sometimes after a dry, dusty day or volcanic eruptions, sunsets become extra colorful.

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Plan to watch sunsets on days after a dry spell or when the air is a bit hazy for stunning views.

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What else is in this exploration
3 evidence blocks3 perspectives3 visualizations3 media resources8 rabbit holes
evidence
The sky appears blue because blue light is scattered more than other colors by the tiny gas molec...
evidence
The same scattering process causes both the blue daytime sky and the red sunsets; the difference ...
evidence
Sunsets look red because the sunlight travels through more atmosphere, scattering away blue light...
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Why Is the Sky Blue but Sunsets Are Red?
Evidence, perspectives, rabbit holes, and more