Fall begins in the Northern Hemisphere on Monday, Sept. 22, when Earth experiences equal day and night, known as the autumnal equinox. While fall officially begins with the autumnal equinox, if you ...

This year's autumnal equinox arrives on Sept. 22, marking the first day of fall in the northern hemisphere As summertime comes to a close, the autumnal equinox reminds us that every ending is also the ...

According to NASA, the equinox occurs twice a year, once in March and once in September, when the day and night are of equal length. The Northern Hemisphere’s first day of winter arrives with the ...

Autumn is synonymous with a lot of things. Like back to school, football season, Halloween and pumpkin spice everything. The days get shorter, the weather cools off, weekends are spent apple picking ...