CRF Blog

The Physics of Sunsets

by Shruti Modi

In The Physics of Sunsets for National Geographic, Ethan Siegel discusses what creates a sunset.

The next time you watch the Sun descend through the sky, towards the horizon, you might marvel at how the Sun remains the same size all the way down. At just slightly over half-a-degree, the Sun appears to drop at a constant rate throughout the afternoon and into early evening. [more]

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