The official first day of fall, otherwise known as the autumnal equinox, is this weekend in the Northern Hemisphere. According to Encyclopedia Britannica, it is one of only two days, the other being the vernal equinox, when the sun is directly above the Equator, essentially dividing night and day into equal portions.

This year, the fall equinox and Libra season will be particularly intense and transformative, because each zodiac sign’s horoscope will be affected by the current astrology in an even more significant way than usual.