Earth's magnetic field could form even with a fully liquid core

How Earth’s liquid core once saved life before it even began

shield, protecting us from harmful cosmic radiation. Without it, Earth would be bombarded by charged particles from space, much like Mars, which lacks a strong magnetic field and struggles to support life. Scientists have long believed that Earth’s magnetic field is created by the movement of liquid iron and nickel in the outer core, a […] The post How Earth’s liquid core once saved life before it even began appeared first on Knowridge Science R…

Earth's magnetic field could form even with a fully liquid core

Berlin, Germany (SPX) Aug 01, 2025 A team of geophysicists has demonstrated that Earth's magnetic field could have originated even before the planet's solid inner core formed. The new research from ETH Zurich and SUSTech, China, addresses a long-standing question in geoscience by using high-fidelity computer simulations to test conditions present over a billion years ago. According to the well-established dynamo theory, the

Simulations prove early Earth's liquid core generated protective magnetic field - Tech and Science Post

Earth is fortunate in having a magnetic field: it protects the planet and its life from harmful cosmic radiation. Other planets in our solar system—such as Mars—are constantly bombarded by charged particles that make life difficult. Scientists explain the generation of the magnetic field by the mechanism known as the dynamo theory. This states that the ongoing slow cooling of the liquid iron and nickel core drives circular currents of liquid mat…