Astronomers uncover another paradox of the moon

(ORDO NEWS) — US astronomers working at Brown University analyzed the lunar soil and found out why the Moon in its first billion years of existence had a stronger magnetic field than the Earth today.

Today, our satellite does not have a magnetic field, but literally 3.5 billion years ago it was present and was quite powerful. His strength reached the mark of 40-120 microtesla. The earth has a magnetic field of 30 to 60 microtesla.

The indicator can change under the influence of various factors. Scientists for a long time could not understand exactly how such a strong magnetic field could form around such a small cosmic body.

Another oddity is the magnetization index, which is too high even taking into account the early lunar period. Some samples showed strong magnetization, while others showed no magnetization at all.

Alexander Evans suggested that attention should be paid to the presence of a mechanism that can explain such a phenomenon.

Scientists have created a model to study this mechanism. Approximately 4.25 billion years ago, the Moon gradually cooled, and its mineral components cooled in turn.

Huge dense minerals with great weight descended to the core, and the lungs became a hard crust. Then, titanium-bearing minerals began to accumulate under the crust . They cooled down and descended in huge viscous cores to the center of the moon.

They acted as a cold shower for the core. Getting into an environment with a huge temperature provoked the emergence of incredibly strong convection currents, which, accordingly, influenced the strength of the magnetic field. This continued until the fragments of the mantle acquired the temperature of the environment that surrounded them.


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