Earth doesn’t just have an inner core. It also has an innermost inner core, a solid ball within the solid ball in the very middle of the planet.
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Articles on Earth's core
Displaying 1 - 20 of 21 articles
Starting at the surface, you would have to dig nearly 2,000 miles before reaching the Earth’s core. No one could survive that trip – and the 10,000-degree F heat once there would vaporize you anyway.
Could tectonic processes in the early Earth have contributed to the rise of oxygen?
Geology experts explain why coloured diamonds are so much rarer than clear ones – and why the newly discovered Lulo Rose might become the most expensive diamond in history.
This is a really important question, and one which climatologists work on in many aspects of their jobs.
8,000 tonnes of molten iron solidifies in Earth’s inner core every second – but it’s not distributed equally.
The rocks provide rare evidence of a time when Earth’s surface was a deep sea of incandescent magma.
The updated methods are providing a clearer picture of how Earth and its inhabitants evolved over the past 60,000 years - and thus, providing new insight into its future.
The Earth’s magnetic field is a lot weaker than we would expect around the island of St Helena.
Changes in the Earth’s magnetic field pose a great risk to electronic infrastructure.
Of all the planets in the solar system, there’s a reason we call Earth home. It’s made of just the right stuff. It’s not too small, or too big, or too hot or too cold. It’s just right.
Fossil fuels are heating the atmosphere – but the fact that we’re burning them may not be the only reason.
New findings suggest the core has been leaking for the past 2.5 billion years, and that could help scientists understand how the core was formed.
The Earth’s core is cooling down, and one day it will be completely solid – when that happens, Earth might look a lot like Mars.
A strange patch of extremely strong magnetic field occurred over Jordan in 1000BC. Could we be about to face another one?
Signals from violent earthquakes are helping reveal the landscape of the planet’s insides.
Are we headed to a magnetic reversal and all the global disruption that would bring? Enter archaeomagnetism. A look at the archaeological record in southern Africa provides some clues.
The Earth’s inner core is more than half a billion years older than previously thought, shows a study. The results could help us better understand the processes that shape the planet’s surface.
The discovery of a thickly viscous layer which traps sinking plates below Earth’s surface has wide implications, not least as a cause of earthquakes.
The planet Earth’s inner core is not a single solid mass but comprised of two layers, and new evidence about the core’s composition from a team of US and Chinese geophysicists suggests that the innermost…
Top contributors
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Professor in Earth Sciences, Nanyang Technological University, Singapore, and Emeritus Professor of Mineral Physics, University of Cambridge
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Professor of Palaeomagnetism, University of Liverpool
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Royal Society University Research Fellow & Associate Professor of Geophysics, University of Oxford
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Associate Professor in Theoretical Geophysics, University of Leeds
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Pro Vice-Chancellor of Research at the University of Technology Sydney and Chief Investigator of ARC Centre for Excellence in Australian Biodiversity and Heritage, University of Technology Sydney
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Researcher in Mineral Physics, Bayreuth University
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Professor of Geophysics, University of Rochester
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Associate Professor of Physical Geography, University of the Witwatersrand
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Postdoctoral Associate in Earth and Environmental Sciences, University of Cape Town
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Lecturer in Geoscience, Queensland University of Technology
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Assistant Professor, Carleton University
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Professor, Université Clermont Auvergne (UCA)
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Researcher in Climate and Water, University of Leeds
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Professor of Water and Process Engineering, University of Surrey
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Lecturer, University of Cape Town
