The "blue moon" comes as the second full moon in a month. That happens every two and a half years, hence the saying “once in a blue moon”. However, a Super Blue Blood Moon hasn't occurred Since March 31st, 1866. This will take place on January 31st, 2018, when the "Blue Moon," which is also a "Super Moon," coincides with a total lunar eclipse.
The best viewing will be just before dawn in the Central time zone. By about 7:15am ET the Earth’s reddish shadow will be clearly noticeable on the Moon. You'll want to wake a little earlier to watch the transition, which will begin around 5:51 am.
There's another full moon Jan. 31 and it's actually a blue moon, the name for a second full moon in a single month. This blue moon will be even more special since it will occur during a total lunar eclipse, which begins in the early morning of Jan. 31, according to NASA.
See stunning collision of three lunar sights The end of this month will see the beginning of one of the moon's most beautiful nights. The last couple of months have seen some strange evenings for the moon. But it will be 31 January that will be the most dramatic and strange of all, and the one that Nasa is advising people to make sure they catch. It will be a blood moon, a Supermoon and a total lunar eclipse – all on one night. Some people including Nasa are referring to it as a super blue blood moon, and whatever you call it, it will make for a beautiful, strange night.