"Blue Moon 2026"

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...

See the best images of the Blue Moon from around the world as a second dramatic moonrise occurred in the same month in a rare sky event.

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.

North America’s celestial highlights for the weekend ahead, which also apply to mid-northern latitudes in the northern hemisphere. This week...

New Yorkers are in for a rare double celestial treat this weekend as a “Blue Moon” coincides with the first “Manhattanhenge” sunsets of 2026...