The Surprising Truth About the Blue Sky

The sky looks beautiful and blue today.

Many people think the sky is always this color.

However, the sky actually has no color at all.

It looks blue because of the bright sun.

Sunlight travels from space to our planet.

This light looks white to our eyes.

But white light contains all the colors of the rainbow.

Our atmosphere is full of many different gases.

The light hits these gases and moves in all directions.

Blue light moves in short, small waves.

These blue waves scatter more than other colors.

Our eyes see this blue light all over the sky.

Space is actually very dark and clear.

Without the sun, the sky has no color.

Now you know the secret of the blue sky!