Why does the Moon sometimes appear so big and bright that we call it a "Supermoon?" It's because the Moon's orbit is not a perfect circle, so it comes closer to the Earth about 4-6 times each year.
Whenever a New Moon or a Full Moon makes its closest approach to the Earth, the result is a "Supermoon" that is 14 percent bigger and 30 percent brighter than a typical Full Moon!
The next Supermoon will be especially rare, occurring on September 27, 2015 -- the biggest and brightest Full Moon of 2015. But there will also be a Lunar Eclipse on this Supermoon -- and this hasn't happened in over 30 years!
What's going to happen?
The Moon rules emotions, which are always most extreme during a Full Moon. So the Supermoon will affect our moods and feelings, making us extra sensitive and dramatic. It will also make the ocean tides higher and stronger in coming days and weeks!
Click the image below to see more fun facts about the Supermoon!