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 ...

An animation showing magnetic field instabilities in two jets of radiation and matter beaming from a supermassive black hole (center). The magnetic field (white) is twisted by the black hole's spin.

<p>Simulation of a possible quadrupole magnetic field configuration for a pulsar with hot spots in only the southern hemisphere. <p>View animated GIF: <a target ...

A new video shows how Earth's magnetic field weakened and warped before temporarily flipping during a recent "polar reversal event." When you purchase through links on our site, we may earn an ...

Most of us like stability in our lives, especially when it comes to planet-wide phenomena, such as the daily appearance of the sun or the periodic change of season. So it can be unsettling to learn of ...

For decades, scientists have puzzled over a curious phenomenon: the Moon’s surface rocks show strong signs of magnetism, despite the fact that the Moon doesn’t have a global magnetic field today. Now, ...

A weak spot in the Earth's magnetic field is growing over the South Atlantic Ocean, according to more than a decade's worth of satellite data collected by scientists. The magnetic field surrounding ...