Magnetism

Earth’s magnetic field nearly collapsed about 565 million years ago, but the planet’s core froze solid and saved it in the nick of time, a new study suggests.

For the first time, an animated model visualized a realistic solar flare.

Physicists have built a ring in which pulses of light whip circles around each other and the normal rules that govern light's behavior stop applying.

Earth's north magnetic pole is on the move, unpredictably lurching away from the Canadian Arctic and toward Siberia.

There's a magnet in a secure room in Tokyo. The last time its designers switched it on, it blew open the heavy doors designed to keep it contained.

An alert released yesterday (Sept. 10) warns of a moderate geomagnetic storm that will lash the planet tonight. It shouldn't be dangerous, but might bring auroras.

Earth's magnetic field is far less stable than scientists thought.

The surface of the sun is a roiling tangle of magnetism, heat and light, stunning new images reveal.

The strange radio bursts usually circle the Earth like electromagnetic ghosts, but scientists have now created and studied their shapes in a plasma chamber on Earth.

A rogue, planet-size object 20 light-years away from Earth has stunned astronomers with its incredibly powerful magnetic field.