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Astronomers Discover 'Ammonite,' a Mysterious Distant Object That Could Shed Light on Our Solar System's History

FINLAND, JUL 22 – A Finnish study found MDR bacteria in 78.6% of Ukrainian war-injured patients, while a new outer solar system object challenges theories about the hypothesized Planet Nine.

Summary by Smithsonian Mag
The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and throws a wrench in the Planet Nine idea
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Recently, a team of astronomers has announced the discovery of a new object in the confines of the solar system that has been nicknamed “Amonite”. This celestial body, an extreme transneptunian object or “sednoid” with an estimated diameter between 220 and 380 kilometers, is considered a “cosmic fossil” because its orbit has remained virtually unchanged for 4.5 billion years, offering a window to the remote past of our solar system.

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Scientific Inquirer broke the news in on Tuesday, July 22, 2025.
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