Moongazers are in for a busy 2026, with 13 full moons lighting up the night sky instead of the usual 12. Beginning with a dramatic Wolf Supermoon in January and ending with the biggest supermoon for 19 years, 2026 will bring a rare blue moon in May as well ...

You’ve probably heard the phrase “once in a blue moon.” Maybe you’ve even used it to describe an occasional occurrence in your life — the frequency with which you buy a new cellphone, for example. But this weekend will bear witness to a true blue moon: the second full moon to appear in the sky in a single month.

Blue moons only happen once in a while, but there's a difference between a calendrical blue moon and a zodiacal one, according to an astrologer.