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Astronomers spot 'Ammonite', a distant world that questions planet nine

Japan's Subaru Telescope in Hawaii detected a faint, icy body. Now named 2023 KQ14, or Ammonite, it lies well beyond Pluto.
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Astronomers discover new dwarf planet 'Ammonite' — and it could upend the existence of Planet Nine

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.