The newly discovered world — a "sednoid" — challenges what planetary scientists thought they knew about the edge of the solar ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

Every once in a while, space gives us something totally unexpected. Well this time, the solar system is surprising us with a ...

A newly found icy object, Ammonite, may be a 4-billion-year-old fossil from the Solar System’s edge—and it’s casting doubt on ...

Researchers just got a step closer to understanding the origins of our solar system, with the discovery of an object orbiting ...

In 2003, NASA-funded researchers spotted what was then the most distant object discovered in our Solar System. The dwarf ...

Typically, telescopes are synonymous with bringing far-off objects close, but the newest member of the solar system was ...

Learn more about a sednoid called Ammonite that has been detected in the outer reaches of the Solar System.

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be ...

Despite the powerful telescopes that modern astronomers have to work with, the distant reaches of the Solar System are still ...

The Subaru Telescope has revealed a fourth member of the sednoids, a group of small bodies with peculiar orbits around the ...

Astronomers have discovered a new world circling the outer edges of our solar system. So far, there are only four known ...