Winter is coming! Here's when it starts, when the winter solstice will arrive and what you should expect for winter weather ...

There are two equinoxes and two solstices each year. Equinoxes occur during the fall and spring and are called the autumnal ...

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

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

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

The seasons have their names for a reason; they describe the weather common for that time of year. Here's why the coldest ...

Two of the more than 6,000 Maya structures archaeologists recently discovered in Mexico's Yucatán Peninsula include an ...

October 31 means it's Halloween! Wondering how the holiday got started and why we trick or treat for candy? Here's what to ...

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.

There are two equinoxes and two solstices each year. Equinoxes occur during the fall and spring and are called the autumnal and vernal equinoxes. They mark the first official day of spring and the ...