Charged particle dynamics in electromagnetic fields is a fundamental area of research that underpins much of modern physics and engineering. This field examines how particles, typically electrons or ...

Deep in the core of most galaxies, hidden by spinning clouds of gas and dust, black holes spin like cosmic engines. These giants — some are billions of times heavier than our sun — can shoot out ...

For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction. The quasiparticle, ...