The first day of spring, or the vernal equinox, is determined by where the Earth is in its orbit around the sun. On this day, the Earth's axis is not tilted toward or away from the sun ...

The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the equator, the sun will be directly overhead at ...

The vernal equinox signals the astronomical start of spring in the Northern Hemisphere, with the sun crossing above Earth's equator, moving from south to north, at 5:01 a.m. EST (0901 GMT ...

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?

Once rooted in pollution protests, Earth Day now mobilises over a billion people each year to confront energy use, carbon ...

Ready for the first day of spring? What we know about the 2025 spring equinox, the autumnal equinox, summer and winter solstices and more.

which happens when the full moon is at its closest point to Earth. Easter's date is based on the lunar calendar. Easter comes ...

Did you know both the astronomical first day of spring and Easter Sunday are tied to the spring equinox? How they relate, ...

During the equinox, the Earth’s axis and its orbit line up so that both hemispheres get an equal amount of sunlight. The word equinox comes from two Latin words meaning equal and night.

Here's what to know about how we split up the year using the Earth's orbit.What is the equinox?As the Earth travels around the sun, it does so at an angle.For most of the year, the Earth’s axis ...