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 ...

A rare blue moon rises May 31, but it will not look blue. Here is what it means and the best time to see it.

The blue moon happens once every two to three years, and the next one won't occur into December 2028.

Do they really happen "once in a Blue Moon?” ...

The second full moon of May rises this weekend — here’s exactly when and where to see the so-called Blue Moon at its best.

CLEVELAND, Ohio — Skywatchers in Northeast Ohio and beyond will get a “once in a blue moon” moment this weekend — but don’t ...

The second full moon of May takes to the night sky tonight. Here's what to expect.

A rare celestial event is coming this weekend as a blue moon makes its appearance for the first time in 2.5 years.

The blue moon will be the second of two full moons in the same month, a coincidence that only takes place about every two and ...

A rare Blue Moon, the second full moon in May, will also be a "micromoon" near its farthest point from Earth.

A blue Moon isn't actually blue, but it is fun to experience. (gchapel/iStock/Getty Images Plus) Who needs trainspotting when ...

blue moons happen every 2 to 3 years, meaning they're not that rare. However, there will be a blue micromoon on May 31, making it a unique occurrence.