The Moon has a Solid Core Like the Earth universetoday storybywill
New research has confirmed the existence of the Moon’s solid inner core. Credit and ©: Géoazur/Nicolas Sarter
Roughly twenty years ago, various methods were used to confirm the presence of a fluid outer core, but the inner core remained undetectable due to its small size. For their study, Briaud and his colleagues relied on geophysical and geodesic data from multiple space missions and lunar laser ranging. They combined this with Monte Carlo and thermodynamic simulations that explored different interior structures.
These same materials may have been too dense compared to the surrounding material and subsequently sank back down to the core-mantle boundary. The researchers also estimate that this occurred during the first billion years of the Solar System . Therefore, their results help constrain the timeline of major events in the Moon’s evolutionary history, including the Late Heavy Bombardment and the disappearance of the Moon’s magnetic field .
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