The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the equator, the sun will be directly overhead at ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The calendar has flipped to September, Labor Day weekend has come and gone and football season is set to dominate the sports ...

The word "equinox" is derived from the Latin words for "equal" and "night." Chillier weather, shorter days, hot mugs of apple cider and Halloween decorations aren't the only signs the seasons are ...

ORLANDO, Fla. – Spring has officially arrived! The vernal equinox arrived on March 20, marking the start of the season for the Northern Hemisphere. But what does that really mean? Let’s break it down.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Spring is almost here — officially, at least ...

(AP) – Spring is almost here — officially, at least. The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere.