The sky is blue because light from the sun is scattered by our atmosphere, similar to how light is scattered by a prism. Different colours of light have different wavelengths and are scattered differently, blue happens to be the colour that is scattered towards the surface of the earth.
The sky is blue because of the way that the atmosphere bends the light when it hits the atmosphere. Light is a mixture of lots of different colours of light and it doesn’t all bend in the same way. Blue bends the best though and so that is why it reaches the earth and so the sky appears blue.
Comments