He explains why the vernal (Latin word for spring) equinox marks the start of the season. For most of the year, the amount of daylight and nighttime that people around the world see is unequal.

The Northern Hemisphere is welcoming Spring 2025 on March 20, also known as the vernal equinox. The jump into spring has come with celebrations and traditions of rebirth around the world for ...

Today marks the first day of spring 2025. The vernal equinox marks the start of spring every March. The autumnal equinox marks the start of fall every September. An equinox occurs, "two times of ...

The Northern Hemisphere’s spring — or vernal — equinox can land between March 19 and 21, depending on the year. Its fall – or autumnal — equinox can land between Sept. 21 and 24.

The Earth’s equator is aligned directly with the Sun on the vernal equinox. @NOAASatellitePA / X Astronomically, an equinox occurs when the sun is directly above the equator. The term combines ...