Equinoxes occur when Earth reaches a point in its orbit where the sun shines directly on the equator. This happens twice a ...

The autumn equinox, which comes around every September for the Northern Hemisphere, marks the official astronomical start of ...

The Autumnal Equinox is a special day when the day and night are equal. This marks the beginning of shorter days and longer ...

If you get up early enough, you can experience an equinox sunrise. The autumnal equinox heralds the arrival of fall in the northern hemisphere.

22 at 8:43 a.m. Eastern time. During the September equinox, the sun’s direct rays cross Earth’s equator into the Southern ...