Blue Moon

My sister informed me that on New Years Eve we'll have a blue moon. Unfortunately, this does NOT mean it will actually be a pretty blue color like in this picture. There have been actual blue moons before as explained in this article but this definition just means it's the second full moon in the same month. Apparently blue moons aren't as rare as I thought. They happen once about every two and a half years. But the article did say we haven't had one on New Years Eve in over a decade. I'm thinking it would be good to let it inspire you to do something you only do once in a blue moon.