iOS app Android app

Sky Color

Out of the Clear Blue Sky

Mario Livio | Posted 09.10.2012 | Science
Mario Livio

First, mathematics aside, was Lord Rayleigh truly the first person to understand such a basic phenomenon as the blueness of the sky? Second, violet light has an even shorter wavelength than blue, so why isn't the sky violet? And third, were the skies on Earth always blue?