Beneath Earth s surface, nearly 3,000 kilometers down, lies a mysterious layer where seismic waves speed up inexplicably. For ...

We don't even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth's magnetic field, which acts like a shield ...

We don’t even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth’s magnetic field, which acts like a shield ...

This week, see how gold is leaking from the planet’s core, watch sharks sharing a communal meal, unearth Egyptian tombs, and ...

We don't even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth's magnetic field, which acts like a shield ...

Earth’s inner core is changing shape, scientists have found. The discovery resolves a long-simmering controversy about what’s happening at the heart of the planet — which was long thought to ...

We don’t even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth’s magnetic field, which acts like a shield, protecting ...

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

Earth's magnetic field and oxygen levels have increased more or less in parallel over the past 540 million years, suggesting ...

Deep inside Earth is a solid metal ball that rotates independently of our spinning planet, like a top whirling around inside a bigger top, shrouded in mystery. This inner core has intrigued ...