For those of you that are unfamiliar with what a blue moon is, it is when a full moon occurs twice in the same month. The first blue moon in December was on the 2nd.
A normal blue moon happens every 2.5 years, with a New Year's blue moon happening only once every 19 years. This means that the next one won't be until 2028.
So this New Year's Eve, put on your blue suede shoes, and drink your Blue Moon beer to celebrate this rare celestial occurrence!
For more information on the blue moon, click here.