What Causes the ‘Spots’ in a Sunset?

The ‘spots’ in a sunset are caused by tiny particles in the air, like dust or water droplets.

Imagine you’re looking at the sun through a window that has some smudges on it. The smudges make parts of the sun look brighter or darker. In a sunset, the same thing happens, but instead of smudges on glass, there are tiny particles floating in the air. These act like little filters, making certain parts of the sun shine more brightly than others.

When sunlight passes through these tiny particles, they scatter the light. Some colors get scattered more than others, especially red and orange, which are why sunsets look so pretty. But if there are lots of different particles, some spots might be brighter or darker depending on how many particles are in that path.

Think of it like a magic curtain, when you peek through the holes in the curtain, you see only parts of what’s behind it. The same way, the tiny particles act like a magical curtain, letting some light through and making ‘spots’ appear in the sunset.