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 ...

The magnetic fields lacing through galaxy clusters and cosmic filaments have no business being there. The early universe was a hot, smooth soup of particles with no mechanism to spin up the enormous ...

When certain massive stars use up all of their fuel and collapse onto their cores, explosions 10 to 100 times brighter than the average supernova occur. Exactly how this happens is not well understood ...

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 ...