Another display of the northern lights could be visible this weekend in several U.S. states following a severe solar storm.

and that's why you get the full spectrum of colours from the white light of the sun. And it's this light that paints the Earth. There are seven colours of the visible light spectrum. In order of ...

Discover where black falls on the color spectrum and how human perception of colors is subjective and context-dependent in this insightful article.