This years Halloween will be slightly different to previous years, as the night skies will be lit up by not one, but two full moons in the same month, according to NASA’s National Space Science Data Center.
Every month throughout the year has a full moon, however, because the the lunar cycle and the calendar aren’t perfectly synched up, around every three years we end up with two full moons in the same month, and this October that rare phenomenon is scheduled to happen.
Octobers first full moon is known as the harvest moon and will illuminate the night skies on the first day of the month. The second full moon, or blue moon as its more commonly known will be visible towards the end of the month, around 31 October. According to EarthSky, the last Blue Moon to occur by this definition took place on 31 March, 2018.
Don’t expect the moon to be an odd shade of blue though, as the term ‘blue moon’ was first originally used in the early 1900s in places such as the Maine Farmer’s Almanac to refer to a rare phenomenon. According to the the Smithsonian, the term was first used when four full moons occurred within a given season.
— Mark Tarello (@mark_tarello) September 20, 2020
Strangely enough, this October will also be the first time a full moon can be seen by all time zones around the world since 1944. Countries that will sadly miss out on viewing a full moon this Halloween will include Central Australia, Eastern Australia, New Zealand, Eastern Indonesia, New Guinea, Japan, Fiji, or Eastern Russia. However, every time zone east of GMT +8 time zones will have he pleasure of seeing this rare even occur with the rest of the world, according to SlashGear.