The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

Scientists say studying objects like Ammonite, despite their immense distance, offers valuable insight into the solar ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

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 ...

Planetary rings explained: composition, formation theories, and a comparison of Saturn, Jupiter, Uranus, and Neptune’s rings.

The Sun is an incandescent but benevolent dictator. For billions of years, it’s kept our star system well organized through the influence of its powerful gravity. All the planets revolve around it on ...

TEMPE, Ariz. a Quick: What’s the order of the planets in the solar system? Need a little help? Maybe the following mnemonic rings a bell: “My Very Educated Mother Just Served Up Nine Pizzas.” It’s ...

Discover why the solar system's planets are arranged as they are, shaped by formation conditions and planetary migration.

The boundary of a solar system is not defined by planets, but by gravity. Beyond Pluto and the Kuiper Belt lies the Oort Cloud, extending up to a light year from the Sun and still considered part of ...

China advances plans for dual solar system boundary missions China has published coordinated papers outlining dual missions ...