The rarity of events and celebrations such as milestone birthdays and cosmic happenings makes them special. The phrase “once in a blue moon” exists because it is not an everyday occurrence. This year, ...

This coming weekend, the only blue moon of 2026 will take place, and it will be the last one for a few years. The second full moon of the month will arrive on May 31, making it a blue moon, as it is ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The so-called Blue Moon rose at dusk on Saturday, May 30, ...

May is double the fun for Full Moon and space fans because we’re getting two in one month. The first took place on May 1 and the second will be on May 31. This phenomenon is called a Blue Moon. And no ...

The second full moon in a single calendar month is known as a calendrical blue moon. May's blue moon will also be a micromoon, appearing slightly smaller and dimmer than usual. The term "blue moon" ...

When people say something happens “once in a blue moon,” they’re expressing that it’s a rare occurrence — and that’s exactly the kind of unique and timely magic that’s radiating from the upcoming full ...