autumn EQUINOX

Today is Autumn Equinox. I did not realize this. Did you know this? Or am I the only one that missed the memo? Tonight on the way home from church my kids were talking like Jr. Astronomers. I was informed first, that my daughters friend actually named her cat Autumn Equinox…..Ok…then I was told that twice a year the Earths equator and the center of the Sun are on the same plane. Making it possible for eggs to stand on end. How may I ask did I live the last 41 years and miss this. What else am I missing people?!