Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we see only blue, despite it all starting with a rainbow of colors.

From ocean to sky, blue is seemingly everywhere - but it's one of the most difficult colours for nature to produce using pigments. Animals usually appear blue to the human eye because of microscopic ...

In a nod to the company's first eight crayon box launched in 1903, the color collection will be available as a Limited ...

The rainbow eucalyptus is a tree with a trunk that's a natural rainbow of colours ...