Magnetic field

Earth's magnetic field, which protects the planet from harmful blasts of solar radiation, may be 750 million years older than scientists had previously thought.

Iron filings are sprinkled on a bar magnet, showing the magnetic field lines.

Stars are hot balls of plasma, but astronomers have now spotted a super strange one that may have a solid surface. Its intense magnetic field is strong enough to overcome its blistering temperatures and “freeze” its outer layers into a solid crust.

The emotional information that’s modulated and coded into these fields changes their nature, and these fields can impact those around us in a variety of ways.

Scientists at a laboratory in England have shattered the record for the amount of energy produced during a controlled, sustained fusion reaction.

How do magnets work? What is a magnetic field? A magnet is an object that has a magnetic field strong enough to influence other materials. The molecules in a magnet are aligned to all face one way, which gives the magnet its magnetic field. Read on for everything you need to know.

Download this stock image: Diagram of magnetic field lines. Opposite poles attract, and like poles repel. - G156MK from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

The "Hall effect" or "anomalous Hall effect" occurs when electric current flows through a conductor or magnet in a magnetic field, generating voltage perpendicular to the electric and magnetic field directions. Onsager's reciprocal theorem, a fundamental theorem in materials science, states that the

Recent data from the ESO's trio of Swarm satellites point to a weakening of the Earth's magnetic field as well as variations in field strength across the planet in recent years.

A Tour Through the Earth’s Magnetic Fields - WSJ