‘Curious and curiouser!’ Meteorite chunk contains unexpected evidence of presolar grains

An unusual chunk in a meteorite may contain a surprising bit of space history, based on new research from Washington University in St. Louis. Presolar grains — tiny bits of solid interstellar material formed before the sun was born — are sometimes found in primitive meteorites. But a new analysis reveals evidence of presolar grains in part of a meteorite where they are not expected to be found.

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