Discover the strange reason Sir Isaac Newton included indigo in the rainbow! Uncover the mystical, historical, and scientific journey of this controversial color and its surprising impact.

It looked like a painting!" Screenshots from Paviola's video of the rare rainbow clouds above Finland. Screenshots from Paviola's video of the rare rainbow clouds above Finland. Rebecca Paviola ...

But when the light hits it just right, its body flickers with shimmering rainbow colors. Now, scientists have figured out how this fish — called the ghost catfish — creates its iridescent glow.

PADRE ISLAND, Texas — While, technically, there is no "end" to a rainbow since they are actually full circles of light being refracted, one woman caught an amazing photo of what looked like the ...