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

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through space.

NORFOLK, Va. — The earth’s journey around the Sun is not a perfect circle. Instead, our planet follows a slightly oval-shaped path called an ellipse, meaning our distance from the Sun changes ...

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years. By Robin George Andrews The Earth stands alone in the solar system as a habitable world, as ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The sun will appear ...

The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

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 ...

University of Texas Arlington provides funding as a member of The Conversation US. Right now, you’re zooming through space at incredible speeds. As just one of all the living creatures on Earth, ...