Twice a year, the sun doesn’t play favorites. Everyone on Earth is seemingly on equal status – at least when it comes to the amount of light and dark that they get. On Monday, we enter our second and ...

WASHINGTON — While the temperatures may not reflect it just yet everywhere, fall is officially upon us. The autumnal equinox, which comes around every September for the Northern Hemisphere, marks the ...

Are you ready for fall? The official arrival of fall is the autumnal equinox, which occurs in the Northern Hemisphere on Monday. After a hot summer, the September equinox marks a welcome shift in the ...

September's sweater-weather chill and the changing leaf colors are a sign that the first day of fall is here. Here's what to know about the autumnal equinox, fall foliage forecast map for 2025, and ...

While many people mourn summer with the passing of Labor Day Weekend, the autumnal equinox is the official end of the summer season. Besides sweater weather and pumpkin-spiced menu items, what does ...

You might hear the term "autumn equinox" tossed around Sept. 22 on the first day of fall. But what exactly does that mean? Is it different from a solstice? Yes, actually. They mark seasonal changes ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. What day is the first day of spring 2026? Friday, March 20, ...

Peak sunshine has arrived in the Northern Hemisphere — the summer solstice. Friday is the longest day of the year north of the equator, where the solstice marks the start of astronomical summer. It's ...