It's almost time to get your coats out, pour yourself a large pumpkin spice latte, and start picking your conkers. That's because autumn officially begins tonight! The autumn equinox takes place at 19 ...

On Sunday, Sept. 22, day and night will be nearly equal in length as Earth spins side-on to the sun and autumn officially begins in the Northern Hemisphere. When you purchase through links on our site ...

Happy first day of fall, Californians, and never mind the fact that the leaves near you may still be green or the temperatures may be more reflective of summer. The season began on Monday, Sept. 22, ...

This story was updated to add new information. Spring has sprung, bringing warmer days and blooming flowers. Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere.

Spring officially starts this week, which means longer days and shorter nights are coming to California. The spring equinox signals the start of the season in the Northern Hemisphere. The sun will ...

April showers bring May flowers − or so they say. Springtime is right around the corner, as the first day of the season is on Thursday. The first day of spring represents the vernal equinox in the ...

Earth’s orbit around the Sun isn’t a perfect circle—it’s slightly elliptical. Each year, around July 2 or 3, Earth reaches its farthest point from the Sun, known as aphelion. Around January 2 or 3, ...