Enjoy the moon tonight!

How to see rare full 'blue moon' this weekend

https://abc7news.com/blue-moon-full-august-21-2021-when-is-the-in-tonight/10966241/

This weekend is your next chance to catch the rare full blue moon before it again becomes "just a memory" until 2024.

A blue moon is the third full moon in a season containing four full moons, rather than the usual three, according to Sky & Telescope magazine. The sky phenomenon has been a cultural muse for music, art and language – such as hit songs "When My Blue Moon Turns to Gold Again" and "Blue Moon," recorded by multiple artists including Elvis Presley, and the saying "once in a blue moon," which describes a rare event.

The full blue moon, which happens about once every 2.7 years on average, won't actually appear blue, though – that only happens even more rarely, when "volcanic eruptions or forest fires send lots of smoke and fine dust into the atmosphere," according to Sky & Telescope.

Additional link: https://www.the-sun.com/news/3517183/blue-moon-be-visible-tonight/

But there's a catch, as - despite the name - blue moons of this kind aren't actually blue.

The confusion is because the term originates in "blewe", the old English word for "betrayer"