Autumnal Equinox: Why First Day of Fall 2010 Is Different

Wednesday, September 22, 2010 - 11:49 in Astronomy & Space

Wednesday, for the first time in more than a decade, the full moon will shine over the first day of fall. Get the facts in our autumnal equinox explainer. Equinox - Full moon - Autumn - Earth - Planet

Read the whole article on National Geographic

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