Why do sunsets have different colors?

Sunsets have different colors because light travels through more air when the sun is low, and that changes how we see it.

Imagine you're drinking a glass of fruit punch. When the glass is full, the color looks bright and clear. But if you pour out most of the punch, the remaining liquid might look darker or more purple, even though it's still the same drink. That’s because there’s less liquid to make the color shine through.

Light works like that too. During the day, sunlight comes straight down, so we see its bright white color. But at sunset, the light has to travel through a lot more air, just like that fruit punch. The air acts like a filter, it takes away some of the colors and leaves others behind.

• When there's more red and orange left in the light, we see a warm, fiery sunset.
• If there are more blue or purple colors left, the sky might look cooler or even purple.

Sometimes, the weather helps too. Clouds can catch and scatter light like a sponge, making sunsets look bigger and brighter than usual!