A previously unknown painting by Pablo Picasso has emerged from the shadows of history, hidden beneath a Blue Period ...

Here's a philosophical question for you. If a color doesn't have a name, can we still see it? Many years ago, the human eye evolved to give us the ability to see about a million colors. That's a lot.

Do you have blue eyes? We talked to experts to discover curious facts about baby blues, including whether your biological family is bigger than you ever imagined.