Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects of viscosity in their simulation, they revealed a self-sustaining dynamo ...
How does the Earth generate its magnetic field? While the basic mechanisms seem to be understood, many details remain unresolved. A team of researchers from the Center for Advanced Systems ...
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 ...
Magnetic fields thread the largest structures in the observable universe. They trace the filaments of the cosmic web, wind through galaxy clusters, and stretch across voids spanning billions of ...
Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of years. Using ancient magnetic records and advanced simulations, scientists ...
Schematic of the Earth’s magnetic field (upper left), history of geomagnetic reversals inferred from the remanent magnetization of ocean-floor rocks (lower left; compiled from data in Ogg, Geologic ...
A Superconducting Quantum Interference Device (SQUID) is an ultrasensitive superconducting sensor used to measure extremely small changes in magnetic flux. It consists of a superconducting loop ...
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