Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.Jump to contentThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged inAllNewsSportCultureLifestyleA blue moon is set to appear on 31 May in the UK, the first of its kind since August 2024.By definition, a blue moon refers not to its colour but to either the second full moon in a calendar month, or the third of four full moons that are seen in one season.According to Royal Observatory Greenwich, blue moons only take place every two or three years, although two occurred in 2018 alone.This month’s blue moon is believed to take place at 9:45am, the Observatory has said.The next blue moon is scheduled to take place on 20 May 2027.Thank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in

The sky this week does something it only occasionally manages without fussing about it too much. A second full moon arrives inside the same calendar month, the sort of timing…

In Australia, May will be rounded out gracefully with a Blue Moon gracing the night skies. Prepare yourself for a rare celestial event.

A rare Blue Micromoon will appear on May 31, 2026, giving skywatchers a chance to witness one of the years most unusual lunar events. A Blue Moon refers to the second full moon…