What Exactly Is the Spring Equinox and What Happens During It?

With the first day of spring taking place on March 20, 2022, many of us know it means warmer weather is coming, but realistically, that’s about it. Sure, we know it’s called the spring equinox, but what does that really even mean? What is an equinox? What happens during an equinox? And who even decides which day is the first day of spring? If you don’t know ...