The S&P 500 index includes around 500 companies. Here's what qualifies a company and who's on the list. Many, or all, of the products featured on this page are from our advertising partners who ...

The sun's distance from Earth changes throughout the year but it has nothing to do with the seasons. The term "perihelion" describes the point in an astronomical body's orbit where it is nearest to ...

When is the winter solstice? The next winter solstice for the Northern Hemisphere will occur on Dec. 21, 2025, and the next Winter Solstice for the Southern Hemisphere will occur on June 21, 2025. The ...