Why the Autumnal Equinox Doesn't Fall on the Same Day Every Year
Tuesday, September 25, 2018 - 04:46
in Earth & Climate
Autumn is right around the corner for everyone in the Northern Hemisphere, while those in the Southern Hemisphere are gearing up for warmer spring weather. But the 2018 autumnal equinox of Sept. 22 is later than usual. Why?