[Ed. – Not to worry, LU Nation. I feel good that we’ll have researched for you what happened during the global Blue Moon of 1944, by the time 2020’s rolls around. I think there’s also an asteroid CPA-ing the Earth the next day (1 November, known on the Christian liturgical calendar as All Saints’ Day), which of course is two days before the election. The spooky factor is off the charts. The asteroid may finally do something like ruffle our hair in the breeze. We’ve been having a pretty lame run of asteroids recently.]
At the end of October, an actual, rare blue moon will occur – on Halloween.
[T]he second full moon in any given month is known as the Blue Moon; there are seven every 19 years. The name is something of a placeholder, given in order to keep the year’s other full moons in their rightful place. This is because the moon completes 12 full cycles of its phase in 354 days, eleven short of the full solar calendar year of 365 days.
This year’s is particularly unusual as it is the first full moon to occur across all time zones since 1944, although there is a full moon on Halloween somewhere in the world every 19 years – meaning that the next one to occur will be in 2039, followed by 2058 and 2077.