the inner core is a solid
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The inner core of Earth is believed to be in a solid state, primarily composed of iron and nickel. This solid inner core is surrounded by a liquid outer core, which is responsible for generating the planet's magnetic field through convection currents and the movement of molten metal. The extreme pressure at the center of the Earth keeps the inner core solid despite the high temperatures.
By studying the movements of seismic waves through the Earth, and the causes of the magnetosphere, it appears that the inner core is solid and the outer core is liquid.
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The outer core is in a molten state, primarily composed of liquid iron and nickel.
The inner core of the Earth is believed to be a solid, composed mainly of iron and nickel. The intense pressure at the Earth's core keeps it in a solid state, despite the high temperatures.
Seismic waves pass through the solid inner core, but they experience a decrease in velocity and may refract due to differences in density and composition from the surrounding layers. The waves can also encounter reflection and scattering as they interact with the boundaries of the inner core.