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Short, accurate explanations of how the moon actually behaves — including the parts most people get wrong.
- 01FundamentalsWhy the Moon Has PhasesThe phases are a trick of viewing angle, not a shadow — and the difference matters.
- 02PhenomenaSupermoons, Explained HonestlyReal, measurable, and considerably less dramatic than the headlines suggest.
- 03PhenomenaThe Blue Moon Was a MistakeThe modern definition of a blue moon comes from a misreading published in 1946.
- 04EclipsesWhy an Eclipsed Moon Turns RedEvery sunrise and sunset on Earth, projected onto the moon at once.
- 05FundamentalsThe Moon Rocks Back and ForthWe see 59% of the lunar surface, not 50% — because the moon nods and wobbles as it goes.
- 06PerceptionThe Moon IllusionA low moon looks enormous. It is not. The effect has resisted explanation for two thousand years.