Surely you've heard of the aurora borealis, also known as the northern lights. It's probably one of the most visually stunning scientific phenomenons there is, but do you know why it happens, or what makes it so colorful and spectacular? This list is full of aurora borealis facts that you probably didn't know. It explains how, where, and when these lights happen, and much more about their properties and their history.The aurora borealis pictures on this list are also stunning. You'll be ready to pack your bags and head to the Arctic to see the lights for yourself. But be sure to finish reading the list first for some helpful hints on the best times to catch them.