The Autumnal Equinox, the beginning of the season of Autumn or Fall in
the Northern Hemisphere, began Monday Evening, 2014 September 22 at 10:29 p.m. EDT / September
23, 2:29 Coordinated Universal Time (UTC). In the Southern Hemisphere, this marks the astronomical beginning of the season of Spring.
Earth rotating during the Autumnal Equinox. Incoming solar energy is equal in both the Northern and Southern Hemispheres. (Image Source: NOAA) By Glenn A. Wal...