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 ...

In the bigger picture, "down" could be defined as being below the plane of the solar system, which is known as the ecliptic.

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 ...

Discover mind-blowing facts about the Solar System in our video "25 Insanely Cool Facts About the Solar System" WATCH OUR OTHER VIDEOS: ►25 Mind Blowing Facts About Time <a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Our solar system has been around for 4.6 billion years. While that sounds like a long time, it's ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...