High-tech security scanners that might have prevented a would-be Christmas Day bomber from boarding a jetliner to the U.S. have been installed in only a small number of airports around the world, in ...

From ancient compasses to modern smartphones, magnetometers have quietly shaped how we sense and navigate the world. Let us explore the fundamentals behind these field-detecting devices. Magnetic ...

Magnetometers from the CEA Leti lab in France are key to the European Space Agency’s three Swarm satellites, which will collect data about the Earth’s magnetic field in unprecedented detail. “We ...