My mother used to use the phrase "once in a blue moon" quite a bit.  I bring that up because we have a "Once In A Blue Moon" event coming up that actually includes a Blue Moon!

Let's define terms.  According to the website moongiant.com, a Blue Moon is the second full moon within a calendar month.  How rare are they?  That depends.  There are two this year - January has full moons on the 2nd and the 31st and again in the month of March, also on the 2nd. and 31st - not so rare.

But 2019 has none, 2020 has one, 2021 & 2022 have none, 2023 has one and 2025 has none so in truth, they are rather rare but not nearly as rare as what's coming on Wednesday,  January 31st.

FOX News is reporting that's when, for the first time since 1886, a total lunar eclipse will occur with the blue moon which for good measure will also be a supermoon.  Blue, Super & Eclipse in the SAME event! That's a lunar trifecta!!

A supermoon occurs when the moon is at or near the closest point to Earth in its orbit, and therefore appears bigger and brighter than a regular full moon. According to NASA, due to the way the Earth's atmosphere bends light, the eclipsed moon is expected to take on a reddish hue .

If that sounds like something you don't want to miss you may have to head east for the best view.  Moonwatchers say partial phases of the eclipse should be visible under a clear sky in central North America, and you should look for it the morning of January 31st. (FOX)