In the Northern Hemisphere, the highest average maximum temperatures associated with summer and the lowest average minimum temperatures associated with winter follow the summer and winter solstices by ...

Ready for winter to be over? You're in luck because spring is about to officially begin, making now a good time to talk about equinoxes and solstices. With the vernal equinox nearly upon us, here's ...

Skywatchers and scientists are preparing for the key astronomical moments of 2026, as the year’s solstices and equinoxes set the rhythm for Earth’s changing seasons across both hemispheres.

The winter solstice—a day many hear about, but may not completely understand. Most people know it’s the shortest day of the year, but they may not know the science behind it. Why does it happen, ...

On the solstices at Chicago, how many degrees north or south of due east and due west are the sunrises and sunsets? Dear Frank, Chicago experiences a sunrise directly in the east twice a year on the ...

It may still be sweltering in Florida, but the official first day of fall is right around the corner! The autumnal equinox falls in September every year and marks the official start of the fall season ...

A team of archaeoastronomers suggests the Pyramid of the Moon in Teotihuacán, Mexico, may have been constructed to align with the movement of the sun. Gorgo, Public domain Thirty miles northeast of ...

The vernal equinox, marking the first day of spring, occurs on Thursday, March 20, 2025, at 5:01 a.m. ET. An equinox happens when the sun's rays are directly over the equator, resulting in ...