Like a moth drawn to a flame.. Oh wait, in this case the sun. (3 Images)

Moths are drawn to light due to a phenomenon called positive phototaxis. This means they instinctively move toward light sources. The most widely accepted theory is that moths use natural light (like the moon) for navigation. They maintain a constant angle to the light source to fly in a straight line. However, artificial lights confuse them, causing them to spiral around or head straight into the source just like the rest of us...