Today marks the autumnal equinox, or the first day of astronomical fall. Have you ever wondered why it occurs on a different ...

Sept. 22, marks the first day of the autumnal equinox in the Northern Hemisphere, according to the Farmer’s Almanac. It ...

The next full Moon is the Hunter's Moon, which will occur on Thursday, Oct. 17. That evening, the Moon will rise above the ...

In addition to refraction hastening sunrise and delaying sunset, there is another factor that makes daylight longer than night at an equinox: sunrise and sunset are defined as the times when the first ...

Equinox officially marks the end of the summer in the Northern Hemisphere as planet Earth welcomes the Fall but when will ...

Fall aboard! The autumnal equinox marks the start, happening at 8:43 a.m. ET on Sunday, Sept. 22. Here's everything you need ...

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