The Secret Science Behind Our Brilliant Blue Skies

Have you ever gazed at the heavens and wondered why they appear such a brilliant shade of azure?

The sun's light might seem white, but it actually consists of all the colours of the rainbow mixed together.

As this light enters Earth's atmosphere, it interacts with tiny gas molecules and scatters in every direction.

Because blue light travels in shorter, smaller waves, it is scattered much more easily than the other colours.

This process, known as Rayleigh scattering, is the reason the sky looks so vibrant on a clear afternoon.