Tonight, an "exceedingly rare" Super Blue Moon is set to light up the night sky - and if you don't catch it this evening, you'll have a long time to wait until the next one occurs.
A whole 14 years to be exact, as the next Super Blue Moon isn't set to take place until 2037.
The Super Blue Moon is set to rise on Wednesday, August 30, and will be one of the biggest and brightest moons of 2023.
Despite being named a 'blue moon', it actually has nothing to do with the color the moon will appear in the sky, however, a blue moon refers to it being the second of two full moons within the same calendar month, with another supermoon having fallen on August 1.
A blue moon is pretty rare in itself, only occurring once every two or three years on average according to NASA, so a blue moon that is also a supermoon happens even less often.
While a Super Blue Moon can occasionally happen twice within two months, it can then be another 20 years before it repeats again due to the orbit pattern of the moon around Earth - which is an oval rather than a circular path - with a Super Blue Moon occurring on average once a decade.
After the one on August 30, we won't get to see another Super Blue Moon until January 2037 - in 14 years' time - followed by another in March 2037, according to NASA.
The Super Blue Moon will reach its peak on August 31 but will also appear full on the nights either side of it, on August 31 and September 1.
A supermoon occurs when the moon is full and it is closest to the Earth, however, the difference in size won't be perceptible by the naked eye.
According to David Moore, CEO of Astronomy Ireland, the phenomenon is "exceedingly rare", as he told RTE: "As there are 12 full moons every year, that means there have been 168 full moons to give one super blue moon."
As the moon's cycle takes 29.5 days from one full moon to the next, so some months experience two full moons as our calendar months are 30-31 days long - but not all blue moons are supermoons.
The last blue moon to occur happened on October 31, 2020 - suitably fittingly on Halloween, and the Super Blue Moon this month is actually the third supermoon of 2023, with another supermoon - the Full Corn Moon - set to happen on September 29, making it the fourth supermoon in a row.
The next supermoon will then not occur until September 18, 2024, with another set to happen on October 17, 2024.
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