NEWSWEEK: Scientists Discover Comet Fragment Inside a Meteorite From a Primordial Asteroid

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Romain Tartèse of the U.K.’s University of Manchester, who studies meteorites but who was not involved in the latest research, said the discovery was exciting because it provides evidence that material was being transported inward for millions of years after the solar system first formed.

“[The researchers] very convincingly suggest that this clast is indeed a remnant of an icy cometary body accreted in the outer solar system where Kuiper Belt objects formed,” he told Newsweek. “These findings have crucial implications regarding transport of material in the solar system.”