The spring equinox will occur at 5:01 a.m. EDT on Thursday. Here's what to know about the start of the spring season.

As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere. During an equinox, the center of the sun is on the same plane as the equator. After the vernal equinox in March, ...

Others use astronomical terms, marking the first day of the season by the summer solstice, which takes place on June 20 or 21 in the Northern Hemisphere. When is the summer solstice? The 2025 June ...

The vernal equinox heralds the arrival of spring in the Northern Hemisphere (finally). But have you heard the myth about balancing an egg on its end?

The sun will set on Wednesday, April 16 at 8:01 p.m. in Seattle. Throughout the rest of April, we'll continue to gain over ...

Others use astronomical terms, marking the first day of the season by the summer solstice, which takes place on June 20 or 21 in the Northern Hemisphere. When is the summer solstice? The 2025 June ...