SHREVEPORT, La. (KTAL/KMSS) — The autumnal equinox is considered the first day of fall, but it’s so much more than that. The word equinox comes from two Latin words: “aequus,” meaning equa ...

At the spring equinox in March and autumn equinox in September, the equator is aligned with the Sun. "Due to subtleties in the way the solar wind interacts with Earth’s magnetosphere ...