The full moon on Sept. 7 coincides with a total lunar eclipse, meaning the sun, moon and Earth align in a straight line, causing the moon to be bathed in a copper, reddish light.

If you didn't catch the " blood moon " Sept. 7-8 from your backyard in the United States, there's a perfectly good explanation — it wasn't visible in North America. The moon took on a striking red color for millions of people in Europe, Africa, Asia and Australia thanks to a total lunar eclipse.