We're seeing the second blue moon of the year tonight, and it's even more special because it will be a Paschal Moon, which only happens leading into the Easter holiday.
The weekend event is also the first full moon of spring - making it not only a Blue Moon, but a Paschal Moon.
The moon will certainly show up complete both Friday as well as Saturday evenings.
This is due to where February was situated in relation the synodic months, so there was no full moon that month and they fell at the end of January and start of March instead.
The last time we had a Blue Paschal Moon was in 1999. Thirdly, it is only in 2037 that a "Double Blue Moon" will light up the sky.
However, don't let the name blue moon fool you.
The fourth full moon of the year is also known as a sap moon, because it marks the time of year sap is harvested from trees, according to The Old Farmer's Almanac. The next blue moon will rise again on Halloween night in 2020.
The exact time the moon will be full will be at 1.36pm BST, although obviously this won't be visible to us.
The full moon on March 31, 2018, officially reaches a maximum at 8:37 a.m. EDT as it rises.
There's nearly always a full moon in February.
Contrary to its name, the forecasted lunar event will not actually be blue.
Last Quarter: March 9, 6:20 A.M.
First Quarter: March 24, 11:35 A.M. "Squeezing a second full moon into a calendar month doesn't change the physical properties of the moon itself, so the color remains the same". In this video, learn about the Full Worm Moon, Moon illusions, and when and why the Moon rides high or low in the sky.