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 ...

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 ...

What is the autumnal equinox? The autumnal equinox marks the start of autumn in the Northern Hemisphere. The Earth travels around the sun at an angle, and for most of the year, the Earth’s axis is ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox marks the start of the fall season for the Northern Hemisphere and the spring in ...

This is read by an automated voice. Please report any issues or inconsistencies here. Day and night will get equal time for a brief moment as much of the world heads into fall. The autumnal equinox ...

Ohio has seen a lot of winter weather. When does spring start? When is daylight savings time? Here's what we know about ...

Monday, Sept. 22 is what many consider the first official day of fall: The fall equinox. The equinox marks the moment when the Sun crosses the equator, marking the start of autumn in the Northern ...

The Spring Equinox 2026 kicks off on Friday, March 20, precisely at 3:45 p.m. (UTC+1), according to the Institute of Celestial Mechanics and Ephemerides Calculation (IMCCE). At this exact moment, the ...

Astronomical winter begins when the northern hemisphere is tilted its furthest away from the sun. That happens this weekend on the longest night of the year.

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 ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere ...