Geologists today have a good understanding of Earth's interior, based on pioneering work by Isaac Newton and Danish seismologist Inge Lehmann in the late 17th century and early-to-mid 20th century, ...

Key Takeaways on Earth's Inner Core Earth's inner core is solid and blistering hot. For decades, scientists have known ...

In the 1990s, geologists discovered a thin layer surrounding Earth's outer core — a swirling ocean of liquid metal that surrounds the solid inner core. The layer, dubbed the E-prime layer, or E ...

Our Earth is structured sort of like an onion – it’s one layer after another. Starting from the top down, there’s the crust, which includes the surface you walk on; then farther down, the ...

The Earth has two core layers: the inner core, a solid layer, and the outer core, a liquid layer. Surrounding the Earth’s core is the mantle. The newly discovered doughnut-shaped region is at ...

Scientists say they’ve confirmed Earth’s inner core has been slowing down. Here’s what it could mean — and why the topic has been the subject of fierce debate.

Some studies have suggested that they're material from the ancient Earth — either a layer of primordial unmixed rock from the planet's formation or a leftover hunk of the giant space rock that ...

Mystery blobs in Earth's mantle may be chunks of a Mars-sized space rock that crashed into our planet 4.5 billion years ago, scientists discover. Skip to main content Open menu Close menu ...

Doughnut-shaped region found inside Earth's core deepens understanding of planet's magnetic field. ScienceDaily . Retrieved July 12, 2025 from www.sciencedaily.com / releases / 2024 / 08 ...