If The Sky's Blue...why are Sunsets Red?

If the sky is blue, why are sunsets red?

Imagine you're playing with a big bucket of water and tiny colorful beads, like the ones you use to make bracelets. When it's daytime, the sunlight travels straight through the air, and we see the blue beads most clearly, that’s why the sky looks blue.

But when the sun is setting, the light has to travel much farther through the air, almost like going around a big maze. This long trip means more of the blue beads get scattered away, leaving behind the bigger, heavier red and orange beads. That’s why the sky turns red or orange during sunset, it's just the big beads left in our view!

Think about looking at a glass of water with different colored candies inside. When you look straight through, you see the small candies first. But if you tilt the glass so the light has to go around more candy, the bigger ones show up instead.

So even though the sky is blue most of the time, during sunset it’s like we're seeing a special mix, the big beads that stay behind after all the little ones have been scattered!