SALT LAKE CITY — A light show by the moon will make Halloween extra spooky this year.
On Oct. 31, a rare blue moon will rise on All-Hallow's Eve, an occurrence that happens once every 18-19 years.
Now, the moon won't actually appear to be the color blue when it appears in the sky. Because it's the second full moon of the month, it is called a "blue moon."
While blue moon's occur every two-and-a-half years, this is the first time in a long time that one actually arrived on Halloween.
If you miss this year's Halloween blue moon, don't worry, it'll show up on the holiday again in 2039, 2058, 2077 and 2099, according to the Farmer's Almanac.