There’s a full moon coming this Friday that is unlike anything we’ve seen since 2012 and won’t see again until early 2018 — it’s called a blue moon.
The colour of the moon will not change. This full moon is special because it’s the second one to occur this month — that’s what a “blue moon” is. The first full moon happened on July 2.
The chances of seeing two full moons within the same month is a rare phenomenon that only takes place about once every 2 1/2 years. The next blue moon won’t come until January 2, 2018.