When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right ... and generators to operate. In the Earth (see image below right), the ...

Experiments suggest an unusual magnetic material could help harness energy from Earth’s rotation. But not everyone is ...

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

A diagram shows the mechanisms feeding ... outer core—the dynamo-like process that generates the magnetic field that protects life on Earth from harmful cosmic rays. "Flow in the outer core ...

The moving metals in Earth's core create the planet's magnetic field. Our planet sits in a small corner of the Milky Way galaxy, 25,000 light-years from the galaxy's center. Our solar system lives ...

The compass needle points in the direction of the Earth's magnetic field, or the magnetic field of a magnet. place the plotting compass near the magnet on a piece of paper mark the direction the ...

This "nano-compass" allows the microbe to passively orient itself in Earth's geomagnetic field (Figure 2). These magnetic nanoparticles ... concentration (top of the diagram) swim forward to ...