If Earth had no atmosphere like the Moon there would be no scattering, and the sky would remain black, even in daylight ...

Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we ...

In Black in Blues, Imani Perry reaches to the height of the sky and the depth of the ocean, casting the history of blue as one of both triumph and tragedy, possibility and limitation.