Understanding the Upcoming Blue Moon: What to Expect
Rare 'blue moon' appears tonight—but you may be disappointed

Image: Express
A Blue Moon will occur tonight, marking the second full moon in May 2026. However, astronomers clarify that it will not appear blue or different from a typical full moon. This event is a chance to educate the public about lunar cycles and the calendar system.
- 01A Blue Moon refers to the second full moon in a calendar month, not a color change.
- 02The full moon on May 31, 2026, will look like a regular full moon, not larger or brighter.
- 03True blue moons can occur due to atmospheric conditions but are unrelated to the calendar definition.
- 04Blue Moons happen approximately seven times every 19 years.
- 05Future Blue Moons are expected on December 31, 2028, and September 30, 2031.
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Tonight, stargazers will witness a Blue Moon, defined as the second full moon in a calendar month, occurring in May 2026. However, astronomers, including Evan Irawan Akbar from the Astronomy Research Group at Bandung Institute of Technology, clarify that this event will not result in a blue-hued moon. Instead, it will resemble a typical full moon. The term 'Blue Moon' originates from American naming conventions and gained modern popularity due to a misinterpretation in a magazine article. While true blue-colored moons are rare and can occur due to atmospheric conditions, they are not related to the calendar definition of a Blue Moon. These events happen about seven times every 19 years. Observers in the UK can view the full moon tonight, peaking around 9:44 a.m. British Summer Time, with no special equipment needed. Although the Blue Moon provides an opportunity for public education on lunar cycles, those hoping for a visually distinct lunar experience may be disappointed.
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The Blue Moon event provides a unique opportunity for public engagement and education about lunar cycles and astronomy.
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