The equinox marks the arrival of fall in the Northern Hemisphere on Sept. 22. Are you ready for fall? The official arrival of fall is the autumnal equinox, which occurs in the Northern Hemisphere on ...

This article was originally published on mentalfloss.com as Autumn Equinox: The Science Behind the First Day of Fall. A ...

According to climate scientists, record levels of Arctic ice in 2025 could increase cold spells in the United States and Europe.