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

Astronomers have identified a rare sednoid called Ammonite, an icy object beyond Neptune that offers new insight into the ...

Scientists believe our solar system may be hiding a secret world — and it’s not the famous Planet X :eyes: A new study ...

When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

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 ...

Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics but collectively believed to be ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...