An animation showcases how the seasons change with Earth's orbit around the sun. Earth's axis tilt causes very specific weather patterns and daylight during the course of a year. Most places ...

The autumnal equinox is upon us Sunday, and with it a shift to shorter days, longer nights and the astronomical start of fall in the Northern Hemisphere. Equinoxes occur when Earth reaches a point in ...

This story was updated to add new information. Farewell, flip-flops. And hello pumpkin spice. Our long, hot summer finally comes to an end on Sunday at 8:48 a.m. EDT with the autumnal equinox, which ...

WASHINGTON — While the temperatures may not reflect it just yet, fall is officially upon us. The autumn equinox, which comes around every September for the Northern Hemisphere, marks the official ...

Meteorological fall started nearly three weeks ago, on Sept. 1. However, the traditional start of the season doesn’t begin until this weekend. Here’s everything you should know about the upcoming ...

Meteorological fall began on Sept. 1, while astronomical fall starts with the autumnal equinox at 2:19 p.m. ET on Monday, Sept. 22. Astronomical seasons are based on the Earth's position relative to ...