Oldest meteorite came from destroyed volcanic planet (science news).
This meteorite stands out as something completely different from any of the over 40,000 meteorites that have been found on Earth, its existence pointing to a missing planet – long destroyed – in our solar system, one developed enough to have had its own volcanic system.
https://asunow.asu.edu/20180802-oldest-ever-igneous-meteorite-contains-clues-planet-building-blocks
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