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

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

According to study co-author Dr Fumi Yoshida, Neptune is the only known massive object near the outer Solar System that could ...

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

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar ...

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

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

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

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 ...

Scientists have discovered a sednoid, named Ammonite, beyond Neptune. This icy object challenges existing theories about the outer solar system's formation.

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