Once in a Blue Moon

It only happens once in a blue moon...

It seems like a lot of impossible things have been happening lately. And the new year seems to hold even more whispers of impossibilities about to come true. So, the fact that this new year will be rung in with a blue moon seems extra fitting.

According to CNN:

It happens only once in a blue moon -- and scientists say a blue moon is exactly what we'll see in the skies this New Year's Eve.

Don't expect an azure glow over our lunar satellite, however. The term "blue moon" simply refers to the second full moon in a calendar month, something that hasn't happened on a New Year's Eve for nearly 20 years, NASA says.

So, after the big ball in NY drops, make sure to take a peek outside and check out that rare blue moon!