But for many modern cultures—and Americans in particular—the solstices and equinoxes are no longer as important. Most people who "really pay attention to what's going on outside on a regular ...

Here's when winter officially starts, when and what the winter solstice is, when we fall back and what to know about the ...

The Martian new year arrives with the Red Planet’s vernal equinox. Explaining why requires a deep dive into celestial ...

But there are actually two measures of the seasons: “the astronomical seasons” (which follow the arrivals of equinoxes and ...

Halloween, celebrated on Oct. 31, marks a cross-quarter day between equinox and solstice, coinciding with daylight savings ending on Nov. 3.

It’s the longest day of the year! The summer solstice is today, Thursday, June 20. Although the summer solstice marks the official first day of summer, it doesn’t necessarily bring a wave of ...

Halloween marks the halfway point between the Autumnal Equinox and the Winter Solstice, making it a cross-quarter day.

It’s an occasion—along with September’s equinox and the solstices in June and December—that’s been marked by humans for thousands of years. How did ancient people know when the equinoxes ...

The fall equinox is an important way to mark Earth's annual journey around the sun. The hours of darkness will gradually ...

What is a solstice? Here's the short answer There are two equinoxes and two solstices each year. Equinoxes occur during the fall and spring and are called the autumnal and vernal equinoxes.

“the astronomical seasons” (which follow the arrivals of equinoxes and solstices) and what’s called the “meteorological seasons.” Allison Chinchar, CNN meteorologist, explains the ...