The colors of the rainbow always show up in the same order: red, orange, yellow, green, blue, indigo and violet. It's organized by wavelength. Red, with the longest wavelength, is on the outside ...

An exotic colour at the far end of our visible spectrum and often associated with royalty, purple is relatively rare in nature. But some vibrant plants, animals and fungi do show off a regal purple, ...

It takes all the colors of the rainbow for us to see it that way ... and tiny gas molecules in our atmosphere, however blue and violet are scattered the most. That's because blue and violet ...