The circumference (distance around the largest part of the Earth) is roughly 24,898 miles (40,070 kilometers), according to NASA. (This area is also called the equator.) If you estimate that a day ...

The Equator is a line of latitude that bisects the globe at its widest point, and where the hours of light and darkness are equal throughout the year. The Equator passes through 13 countries ...

During an ice age, the polar regions are cold, there are large differences in temperature from the equator ... earth experienced the first of three major cooling steps. At this time a continental ...