The second full moon of May — a blue moon — will make an appearance this weekend.

A Rare blue moon and micromoon rises this weekend, giving skywatchers worldwide a chance to catch the year’s second full moon.

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. 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 rare celestial event is set to light up the night sky this weekend, as what is known as a blue moon rises on May 31. But despite its famous name, stargazers should not expect to see anything blue.

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, ...

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 ...