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Scientists, including UCLA astrophysicist David Jwitt, estimated that the object, dubbed Threeey Atlas, was around 10 billion years old—significantly older than our solar system. Its trajectory originated from the galaxy's thick disk, home to ancient stars formed early in the Milky Way’s history. This implied that Threeey Atlas was not a recent interloper but an ancient relic, perhaps a comet or asteroid predating the solar system itself.