a supercontinent located near the equator. These findings lend substantial weight to the idea that glaciers once spanned the entire globe, not just the poles. The Snowball Earth theory describes a ...

It's time to recalibrate the navigation systems on ships, airplanes, and (given the time of year) Santa's sleigh: the ...

The equator is the imaginary line that horizontally ... It's located halfway between the North and South poles, dividing the Northern and Southern hemispheres, with a latitude of 0 degrees.