It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation ...

However, these snowflakes were falling out of a clear blue sky! That’s right, there was not a single cloud from horizon to horizon. The air was calm (so they weren’t blowing off the roof or ...

On a clear, sunny day, the sky above us often glows a brilliant blue, a sight so commonplace ... When the Sun is low on the horizon, its light must pass through a thicker layer of the atmosphere.

but the other planets will linger in the night sky. For the best view, head to a location with minimal light pollution and a clear view of the horizon. Clear skies will also be necessary to see ...