A new study has increased the mystery surrounding the inner workings of the planet. The study by boffins at the University of London and published in Nature, found that the solid ball of iron that forms the Earth's core is losing heat 2-3 times faster than previously thought via a process called conduction. This suggests that the core could be solidifying much faster than earlier estimates. Source: NY Times
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The dynamic motion of the Earth’s interior helps shape its surface — and ultimately makes life on the planet possible. What type of heat transfer does the Earth's Outer Core demonstrate? Via glenn blakney 
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New research suggests the existing models of Earth’s core may not explain its complexities.
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Scientists studying the rotation of the Earth have long known that our planet doesn't have a perfect spin. Most believe this is due to the different types of materials that make up the core, mantle and crust, which all have different rates of spin causing inherent friction. Most models researchers have developed however agree that in order for the planet to wobble the way it does, the mantle would have to respond to the magnetic tug of the core. The problem with this though, is that the mantle is made mostly of rock, not metal, which means it’s not supposed to be conductive.
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