摘要: It is likely that presolar interstellar grains are preserved inside comets and asteroids. If these particles can be collected, identified properly analyzed in the laboratory, they could provide a vital link between study of early solar system materials preceded it. Abundant isotopic evidence from meteorites indicates components have survived asteroids although it not evident unaltered individual survived. Continued work on meteorites, interplanetary dust samples directly retrieved will lead to new insight into circum-stellar grain properties processes constraints models.
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