If the existence of a liquid layer around the lunar core is confirmed experimentally, this could turn our ideas about the history of the formation of the Earth and its natural satellite.
In an article published in the journal Nature Geoscience, experts suggest that the fluid reservoir, if it actually exists, was formed due to the Earth's gravity.
Scientists have noticed a number of anomalies in the measurement of the lunar orbit. None of the proposed computer models could explain the origin of these anomalies
Gravitational measurements indicated that the rotation coefficients did not match the predicted values near the inner core of the Moon. Experts have suggested that a thin liquid layer covers the core of the Earth's satellite.
A new computer model that takes into account the gravitational forces of the Moon, Earth and the Sun has shown that the layer of liquid around the lunar core does indeed explain the gravitational anomalies found in the measurements.
The authors of the article believe that the liquid layer may actually exist. Its formation is associated with tidal forces caused by Earth's gravity, which cause friction between the core and mantle of the Moon, forming a layer of material with low viscosity between them.
Of course, so far we are only talking about a computer model. If the existence of a liquid layer is confirmed experimentally, this could turn our ideas about the history of the formation of the Earth and its natural satellite.