Earth's magnetic field protects life on Earth from radiation, but it can move, and the magnetic poles can even flip
- Written by Ofer Cohen, Associate Professor of Physics and Applied Physics, UMass Lowell
The Earth's magnetic field deflects particles emitted by the Sun.Mark Garlick/Science Photo Library via Getty ImagesThe Earth’s magnetic field plays a big role in protecting people from hazardous radiation and geomagnetic activity that could affect satellite communication and the operation of power grids. And it moves.
Scientists have...