How we proved this tiny rock came from space

How we proved this tiny rock came from space

Earlier this year, Verge Science went hunting for space dust on a rooftop in Brooklyn. The hunt turned up some promising samples, but looking at them under a microscope led to inconclusive results — even from the world’s foremost micrometeorite hunter. To get to the bottom of things, we took a trip to Johnson Space Center to learn how to verify suspected space samples and to learn about what these tiny specks could teach us about the secrets of the universe.

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