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Osiris-REX Finds Some of Solar System's Oldest Rocks on Bennu

9 Oct 2020, 18:35 UTC
Osiris-REX Finds Some of Solar System's Oldest Rocks on Bennu via Sky & Telescope

Carbonate rocks that crystallized just a few million years after the birth of the solar system now lie on the surface of near-Earth asteroid 101955 Bennu. They were likely born within water flowing inside a much larger planetesimal before ending up on the asteroid’s surface.

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