The vernal equinox marks the start of spring in the Northern Hemisphere — so does that mean this is the only day out of the ...
The word equinox comes from two Latin words meaning equal and night. That’s because on the equinox, day and night last almost ...
Earth's northern hemisphere warms up literally for the astronomical start to spring. Here's what to know about the season.
The first day of spring in the Northern Hemisphere falls on March 20, 2025, marking the vernal equinox. The event occurs when ...