Magnetism

Satellites circling Earth have mapped an elusive, invisible force in unprecedented detail: the magnetic field created by the currents in the planet's salty oceans, according to new research.

Minerals locked in clays burnt by ancient African farmers reveal the history of Earth's magnetic field.

Thanks to a solar storm, the northern part of North America may see a dazzling auroral display tonight.

Earth's magnetic poles, whatever they're doing, are not going to spark chaos and kill us all — a scenario making the rounds online right now.

An amateur astronomer appears to have made contact with the Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) satellite, which lost contact with NASA in 2005.

A man in India has reportedly died after being yanked toward a magnetic resonance imaging (MRI) machine, according to news reports.

A new study suggests that stimulating a precise spot in patients' brains may ease symptoms of auditory hallucinations, or "hearing voices."

A solar flare and potential coronal mass ejection could black out some communications.

High-speed video of the northern lights has revealed why the glorious celestial shows sometimes flicker like strobe lights: It's all about the gases.