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Featured Explainer
Why is the sky blue?
Explore an interactive guide that shows how sunlight, air molecules, haze, and clouds work together to create blue afternoons and fiery sunsets.
What you’ll find inside
A live sky simulator, an explanation of Rayleigh scattering, a simple answer to “why not violet?”, and a comparison with the Moon and Mars.
Built for curious readers
This page is designed like a one-page learning experience, with the core explanation rendered in HTML and enhanced with custom JavaScript.
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