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

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

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

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

Astronomers have long speculated about the existence of a mysterious planet lurking far beyond Neptune, a world several times ...

A rare celestial object beyond Neptune, 2020 VN40, moves in sync with Neptune, offering new insights into the outer solar system and fueling the search for Planet Nin ...

Astronomers have spotted a distant celestial object named 'Ammonite' that could potentially debunk the existence of the theorized Planet Nine.

Astronomers using the Subaru Telescope and Canada France Hawaii Telescope on Mauna Kea discovered a “fossil” of our early ...

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