Check your compass again — Earth’s north ... electrically conductive iron gives rise to our planet’s magnetic field. “The [core’s] fluid itself flows as easily as water does on the ...

Check your compass again – Earth’s north ... electrically conductive iron gives rise to our planet’s magnetic field. “The (core’s) fluid itself flows as easily as water does on the ...

Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.