Each month has a full moon, but because lunar cycles and calendar years are not completely synchronous, almost every three years we end up with two in the same calendar month.
The “once in a blue moon” phenomenon does not necessarily mean that the moon will appear blue on Halloween. Although the dark blue color of an evening sky may affect the color of our vision, the Earth’s satellite may not appear blue.
Typically, when a moon turns blue, it is caused by smoke or dust particles in the atmosphere, such as during a large volcanic eruption.
So if something weird happens to you on Halloween, there’s a good reason for it.
Kate Grenville is a contributor to Sproutwired.com, covering a broad range of topics including news, politics, business, technology, sport, entertainment and lifestyle. She focuses on delivering clear, balanced reporting that helps readers understand current events and developments that matter to everyday life. With an emphasis on accuracy, relevance and accessibility, Kate aims to provide useful information, timely updates and engaging stories that keep audiences informed about issues shaping Australia and the wider world.
