A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system. The "rogue," as it's referred to by researchers, is producing ...

To reach Uranus is to journey into the absolute unknown. Situated in the deep freeze of the outer Solar System, nearly 3 billion kilometers from the Sun, this Ice Giant is a world of paradoxes. It is ...

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 ...

A mysterious "rogue" planet has been observed gobbling six billion tonnes of gas and dust a second -- an unprecedented rate that blurs the line between planets and stars, astronomers said Thursday.

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Read an excerpt of this deep-space mystery from the prolific writer of 'Whalefall' and 'Angel Down.' ...

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated paths far beyond Neptune. Their distant homes in the Kuiper Belt and ...