Scientific American

Earth’s Inner Core May Have an Inner Core

Earth’s core consists of a solid iron-nickel ball rotating within a layer of liquid metal. But that ball may not be as simple as it seems: new research suggests the inner core contains its own inner ...
Los Angeles Times

The spinning of Earth’s inner core is slowing down. Is this how it all ends?

Geophysicist John Vidale noticed something striking while tracking the way seismic waves move from Earth’s crust through its core. The very center of the planet, a solid ball of iron and nickel ...
CNN

Earth’s core has slowed so much it’s moving backward, scientists confirm. Here’s what it could mean

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Deep inside Earth ...
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Silicon and carbon could explain Earth’s onion-like inner core

Deep beneath our feet, far beyond the reach of drills or submersibles, Earth hides a solid metal heart that behaves in ways geophysicists have struggled to explain. New experiments now suggest that a ...
CNN

‘It’s almost science fiction’: Scientists say the shape of Earth’s inner core is changing

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Scientists who just ...