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

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

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

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

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

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

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

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

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

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

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 ...

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