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?

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

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 ...

May’s rare blue moon is still ahead, giving skywatchers one more chance to catch a full moon before June arrives. The second full moon of the month — known as a blue moon — will rise May 31, marking ...

May's blue moon will illuminate the night sky this weekend, but don't expect the moon to actually look blue. On Sunday, May 31, a blue moon will occur, which means there will be two full moons during ...

What will we see in the southern sky in 2026? A total eclipse of the moon (at a convenient time), a blue moon and a supermoon, the two brightest planets close together, and Jupiter disappearing behind ...