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.

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 ...

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 ...

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 ...

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. On 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 ...

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 ...

The Earth doesn’t sit straight up and down—it’s tilted on its axis at 23.5 degrees. That tilt drives all of our weather and creates an uneven distribution of heat and sunlight across the globe ...