The autumnal equinox falls in September every year and marks the official start of the fall season. Here’s when the first day of fall is, the difference between solstices and equinoxes ...

Though equinoxes might not get the same attention as solstices, they're a lovely way to observe the seasons shifting. Let's ...

Its fall – or autumnal — equinox can land between Sept. 21 and 24. The solstices mark the times during the year when the Earth is at its most extreme tilt toward or away from the sun.

When is the longest day of the summer? And when do the hotter months officially start in the UK? Here's everything you need ...

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 ...

Mindful that the solstices and equinoxes symbolize the fertility of the land, agricultural and food production systems, cultural heritage and their millenary traditions; the General Assembly of ...

Across three sites, the solar observatories accurately measure not only solstices and equinoxes but also leap years. But they would have been left hidden in the forest if it weren't for two people ...