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Blue Moon
- Blue Moon – not quite, there isn’t a Blue Moon in May 2026.
o - A “Blue Moon” doesn’t actually mean the Moon turns blue, it’s a term about timing, not colour.
o - This meaning a Blue Moon is most commonly as the second full moon in a single calendar month.
o - Because full moons happen about every 29.5 days, sometimes the calendar “fits in” an extra one (Twice Full Moon in the same month) that’s what gets called a Blue Moon.
o - The next monthly Blue Moon will be in December 2028.
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Back to 2026 May Highlights
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