Earth’s magnetic field is constantly swirling and shifting thanks to a colossal ocean of liquid metal sloshing around in its belly, but perhaps there's more to the story. In a new study, geologists ...

New research reveals the source of this carbon – and the driving forces behind it – are far more complex than previously ...

The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

Scientists have spent decades cataloging life on Earth’s surface, from rainforest canopies to ocean trenches. But a growing body of research now shows that a vast, hidden biosphere thrives kilometers ...

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

Earth’s core has often been described as just a giant ball of iron and nickel. Now, a new study argues that it is also a major storage place for hydrogen, possibly equivalent to dozens of oceans’ ...

Scientists discovered plate anomalies in Earth's mantle using seismic wave analysis. These mysterious structures challenge tectonic theories.

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 mantle, ...

Gravity feels reliable—stable and consistent enough to count on. But reality is far stranger than our intuition. In truth, the strength of gravity varies over Earth's surface. And it is weakest ...

Tiny zircon crystals are revealing that Earth’s earliest history may have included surprisingly complex tectonic activity.

NASA says Earth is about halfway through its lifespan. Scientists explain how solar changes could affect habitability, oceans, and the planet’s future over billions of years ...