Add Yahoo as a preferred source to see more of our stories on Google. May 31, 2026 at 4:43 a.m. ET brings us a rare Blue Moon—the second full Moon occurring within a single calendar month—making this ...

A second full moon in a calendar month will occur on May 31 and be best seen at moonrise on May 30. Why is the Blue Moon one of astronomy’s most misunderstood terms?

The Moon follows a cycle of eight phases, spanning a month − more precisely 29.5 days. Beyond its sheer size and glow, the full moon can hold deep spiritual significance, depending on the season or ...

This only happens once in a blue moon, literally. May's second full moon is almost here, and not only is it a rare blue moon, but it will also be a micromoon. The blue moon will take place soon, ...

Add Yahoo as a preferred source to see more of our stories on Google. A full sturgeon supermoon, also a blue moon, sets behind Rocca Calascio Castle in Calascio ...

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, ...