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 ...

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 ...

The planet that appears so steady beneath our feet is, in reality, subtly reorienting itself in space. As ice melts, oceans ...