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Mysterious 'donut' structure is discovered hidden inside Earth's core

A newly discovered donut-shaped region in the Earth's outer core helps generate the planet's crucial magnetic field.
This structure contributes to the stirring of liquid metal, essential for sustaining life on Earth.

Primordial Helium May Be Leaking from Earth's Core

An analysis of ancient lava flows in the Canadian Arctic suggests helium trapped in Earth's core could be slowly leaking into the mantle and then reaching the surface.
The findings support the hypothesis that primordial reservoirs of helium and other elements were trapped in Earth's core when the planet formed.
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