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

Would one frozen world, just visible on the rim of the Sun’s kingdom, turn decades of speculation on the concealed layout of ...

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

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

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

KQ14, nicknamed "Ammonite", was discovered using the Subaru Telescope and is a highly elliptical object with a perihelion and ...

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

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

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

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

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...