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abundances contained within an acid-insoluble carbonaceous residue that remained after the meteorite bulk had been dissolved in acids matched almost exactly the predictions for isotopic xenon in red giant dust condensate. It then seemed certain that presolar grains were contained within Anders' acid-insoluble residue. Finding the actual presolar grains and documenting them was a much harder challenge that required locating the grains and showing that their isotopes matched those within the red-giant star. There

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