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What does once in a Blue Moon mean?
Why is there a Blue Moon?
When was the idiom 'once in a Blue Moon' first used?
Do blue moons ever happen?
Aug 24, 2012 · So, by the mid-19th century, it was clear that visibly blue Moons, though rare, did happen from time to time — whence the phrase "once in a blue Moon." It meant then exactly what it means today, a fairly infrequent event, not quite regular enough to pinpoint.
Nov 19, 2019 · “Once in a blue moon” is a common expression that has been used for a long time, and which means ‘not very often,’ or ‘very rarely.’. It often refers to an extra full moon; however, it has been used to describe the way the moon actually looked, when for different reasons it had turned a blueish color.
The moon - not necessarily full - can sometimes appear blue due to atmospheric emissions from large forest fires or volcanoes, though the phenomenon is rare and unpredictable (hence the saying “once in a blue moon”). [9][10][11] A calendrical blue moon (by Pruett's definition) is predictable and relatively common, happening 7 times in every 19 y...
Dec 31, 2020 · When the idiom appeared in the 19th century, in the publication of Real Life in London by Pierce Egan, once in a blue moon meant “close to impossible” or “rarely.”
The term blue moon originated from the 16th-century expression “the Moon is blue,” meaning something that was impossible. For two years following the eruption of the Krakatoa volcano in Indonesia in 1883, people around the world reported seeing strangely coloured sunsets and a Moon that appeared blue.
Mar 25, 2022 · ‘Once in a blue moon’ is derived from the scientific occurrence of blue moon. (Image: Sporcle) We often use the term ‘once in a blue moon’ to indicate a rare occurrence. This common idiom...
May 3, 2022 · In modern usage, the idiom “once in a blue moon” means “very rarely” and is used synonymously with “every once in a while.” It’s not quite as extreme as similar idioms like “when pigs fly” or “when hell freezes over” because if something happens once in a blue moon, it actually does happen, just not frequently.
