Here are the latest updates on “blue moon” as of now.
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What a blue moon is
- The term most commonly refers to the second full moon in a calendar month, a relatively rare event happening roughly every 2.7 years on average. This is a well-established convention for describing monthly moon cycles [cite ].
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Recent and upcoming blue moons
- May 30–31, 2026: EarthSky reports a blue moon occurring at the end of May 2026, noting it as the smallest full moon of 2026 and about 7% dimmer than a typical full moon. This aligns with the common definition but highlights its micromoon characteristics due to distance. This is a current observation from EarthSky published May 25–30, 2026 [cite ].
- There have been historical blue moons tied to notable lunar events (e.g., supermoons or eclipses) in other years, but the May 2026 event is the most current blue-moon occurrence being discussed in mainstream astronomy outlets [cite ].
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Visual and observational notes
- True blue-colored moons (where the moon appears bluish) are rare and occur when atmospheric particles scatter light in a way that preferentially removes red wavelengths; this is a separate phenomenon from the calendar-based blue moon and is usually linked to events like large fires or volcanic eruptions. EarthSky describes these cases and context for why a moon might appear blue, distinct from the calendar definition [cite ].
- In general, a blue moon is best observed around local moonrise/moonset times on clear nights; check a local almanac or astronomy app for exact rise/set times for your location in Miami, FL [cite ].
If you’d like, I can tailor a quick viewing guide for Miami tonight (best times, light pollution considerations, and simple skywatching tips) or pull a short timeline of upcoming blue moons in the next few years. I can also add a chart showing the occurrence pattern of blue moons over the past few decades. Would you prefer a viewing tip sheet or a compact chart?
Citations:
- EarthSky overview on blue moon timing and micromoon context (May 25–30, 2026).[2]