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Space
Space
Science
Sachiko Amari

Ancient grains of dust from space can be found on Earth − and provide clues about the life cycle of stars

Earth Solar System
A porous piece of rock under a microscope .

This article was originally published in The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights.

Sachiko Amari is a Research Professor of Physics at Arts & Sciences at Washington University in St. Louis.

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