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.

For the second time in 2025, an incredible astronomical event is about to change the seasons on Earth. The September equinox is almost upon us, with autumn about to begin in the Northern Hemisphere, ...

Meteorological spring starts on March 1 and is based on annual temperature cycles, while astronomical spring starts on March 20 and is based on the Earth's position relative to the sun. The vernal ...

The first day of fall is finally here, and while it still might be a little warm, pumpkin spice lattes and Halloween decorations are sure to give everyone that fall feeling. While many consider the ...

The spring equinox, marking the first day of spring in the northern hemisphere, occurs at 5:01 a.m. March 20. The spring equinox signifies the halfway point between the summer and winter solstices.