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 blue moon peaked on May 31, but don't worry if you missed it. Here's when the next full moon will light up the sky.

The next full moon of 2026 will be the May flower full moon, set to rise in Scorpio, amid the Eta Aqauriids meteor shower and then give way to a rare second moon in the same month - the blue moon.

Is there a full moon tonight? Skywatchers won’t see one today, but a new moon is rising in Taurus this weekend instead. Here’s what to know about May's new moon phase and when the next blue moon will ...

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, ...

A rare blue moon peaks early Sunday morning. It is a micromoon, so it may appear smaller and dimmer than usual. What to know ...