https://www.iflscience.com/a-very-old-undisturbed-structure-may-have-been-discovered-beyond-the-orbit-of-neptune-43-au-from-the-sun-81625
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"Very Old, Undisturbed Structure" May Have Been Discovered Beyond Neptune, Over 6 Billion Kilometers From The Sun - IFLScience
11/20/25 at 4:41pm
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IFLScience
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James Felton
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If confirmed, the structure may be primordial.
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