The fall equinox arrives on Tuesday, according to a report from Phys.org. At this moment, the sun is positioned such that daylight and darkness are nearly equal across much of the planet. The event is often described as giving day and night equal billing.
This equinox serves as the astronomical start of autumn for the Northern Hemisphere, where temperatures will trend cooler in the coming weeks. At the same time, the Southern Hemisphere begins its spring, with longer daylight hours ahead. The report notes no other major celestial effects beyond this seasonal transition.