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

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 ...

Planet Nine should appear stationary over the course of a single day but show detectable movement over months.

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

Scientists are almost sure that there is a ninth planet. But a study by Japanese astronomers hints that this might not be true. A new cosmic body called a sednoid has been discovered near the Kuiper ...

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

A telescope has discovered a new world on the edge of the Milky Way – potentially confirming the ‘Planet X’ theory. Beyond ...

Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii ...

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.

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