Each year between September 21st and 24th an astronomical event known as the Fall or Autumnal equinox occurs. On this day in the northern hemisphere, the sun is exactly above the equator and day and night are of roughly equal length (https://www.britannica.com/science/autumnal-equinox). In the Southern Hemisphere the Equinox occurs on March 20th or 21st. The… Read more »