Purple: It's the color of Barney the dinosaur, certain iris blooms, and eggplant. However, scientists now say that the color we know as purple may not actually exist. That is going to come as ...

Add Yahoo as a preferred source to see more of our stories on Google. Telescopes of all varieties gather information from the electromagnetic spectrum to make their images. Some of that light is ...

We have always thought or imagined that the Sun is yellow, or even red. But if you stand outside on a clear afternoon, you’ll notice something fascinating: the sunlight around you feels almost ...

Before going synthetic, dyeing clothes was like alchemy: it involved heating a cauldron of water, dye, fabric, and fixatives (often vinegar or urine) to bind pigments to the cloth. With a strong ...