Once in a blue moon

(photo from NASA article linked below)

The excerpt here is from today's Kim Komando newsletter. I thought it was interesting enough to pass on and the NASA article goes even deeper into the folklore and the astronomy of these moons.

Tonight is a special night for astronomy buffs. That’s because there will be a blue moon tonight.

We’ve all heard the expression “once in a blue moon.” We use this expression when talking about something that rarely happens.

Over the years, there have been many meanings to the term “blue moon.” But the modern definition of blue moon is the second full moon in a month.

Blue moons occur more frequently than one might think. In fact, they occur about every 2½ years. You can learn more at NASA's site by CLICKING HERE.

Kim Komando