Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

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

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

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 ...

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

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be another nail in the coffin for the Planet Nine hypothesis.

Astronomers have found 2023 KQ14, nicknamed Ammonite, a rare sednoid with a unique orbit that challenges the Planet Nine ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar System. Named 2023 KQ14, this rare “sednoid” follows an unusual orbit that ...

The discovery was made by astronomers using the Subaru Telescope, which is situated atop a dormant volcano in Hawaii.

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

Japan's Subaru Telescope in Hawaii detected a faint, icy body. Now named 2023 KQ14, or Ammonite, it lies well beyond Pluto.