Photographers around the world pointed their cameras to the skies last night for a rare "blood moon" total lunar eclipse.
Total lunar eclipses occur when a full moon passes through Earth's darkest, innermost shadow, called the umbra. As only redder-colored light is able to penetrate our planet's atmosphere, the moon is cast in a blood-like hue that's often called a "blood moon". The U.S. was treated to a spectacular "blood moon" in March, but this time it was only visible in Europe, Africa, Asia and Australia.
