On Twitter, the Met Office explained: “This is likely to be caused by the SpaceX Falcon 9 rocket, launched earlier today. The ...

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation for why the sky is blue: Blue light from the Sun is scattered the most when ...

O n a clear, sunny day, the sky above us often glows a brilliant blue, a sight so commonplace that many of us rarely stop to question why.While this natural phenomenon might seem simple to explain ...

Of course, the sky is not always blue. And Rayleigh scattering also explains why the sky tends to be reddish when the sun is close to the horizon – at sunrise and sunset.

You might think that explaining why the sky is blue would be kind of simple. But even a brief explanation of it requires a lot of science. The colors of everything you see are produced in ...