Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion.

Ohio has seen a lot of winter weather. When does spring start? When is daylight savings time? Here's what we know about ...

A "super-Earth" has been discovered orbiting the closest single star to our Sun, scientists said Wednesday in a breakthrough that could shine a light on Earths nearest planetary neighbours.

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...