Earth is fortunate in having a magnetic field: it protects the planet and its life from harmful cosmic radiation. Other ...

Earth's magnetic field plays a key role in protecting life on our planet. Yet its origin and evolution remain subjects of ...

Research shows Earth’s magnetic field may have formed with a fully molten core - protecting the planet long before the inner ...

Experts warn that "something" in the core of the Earth is causing the magnetic pole to shift. North Pole is shifting toward ...

For more than 100 years, scientists have puzzled over whether the Earth’s magnetic field had already been generated stably ...

Strong new evidence suggests that primordial material from the planet’s center is somehow making its way out. Continent-size ...

Earth’s inner core is a hot, solid ball—about 20% of Earth’s radius—made of an iron alloy. The planet’s outer core, beneath the rocky mantle, is a colder, liquid metal. Geophysics models explain that, ...

Earth’s magnetic field originates from the motion of liquid iron in its outer core. This flowing molten iron produces electric currents, which are oriented in particular directions as a result ...

The magnetic field and the liquid outer core are further stabilized by the more solid inner section. The inner core is made of solid iron-nickel about 3,000 miles below the surface of the Earth.

To understand how Earth's magnetic field has evolved over its history, geophysicists use models that simulate the thermal state of the core and mantle. These models help us understand how heat is ...

Earth’s magnetic field yanks at this solid ball of hot metal, making it spin. At the same time, the gravity and flow of the fluid outer core and mantle drag at the core. Over many decades, the ...

The Earth's magnetic field is essential to life as we know it. But it’s something we can never see – or hear, until now. In a recent study released on Oct. 10 by the European Space Agency ...