Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Surprise, it's twins.

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...

The decades since scientists confirmed the first planet around another star have been rich in discovery, but it’s rare to see ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Nearly all of the planets in the solar system are about to march through the night sky in a single-file line. This planetary alignment, sometimes called a planet parade, will include all of the solar ...