Researchers have uncovered a doughnut-shaped structure within the Earth's outer core, which affects the travels of seismic waves and the generation of Earth's magnetic field.
Understanding the outer core is vital for our survival, as it generates the Earth's magnetic field, protecting us from the sun's charged particle bombardment.
The outer core's geometry is crucial to understanding Earth's dynamics, as scientists utilized seismic waves from earthquakes to recreate their travel patterns through the core.
This doughnut-like structure, or torus, might explain why Earth has an active dynamo—creating a magnetic field—while many other planets do not.
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