Strange particles that have mass when moving one direction but no mass when moving in another were first theorised more than a decade ago. Now, these mass-shifting particles have been glimpsed in ...

The collapse of the core forces electrons and protons together, creating a sea of particles called neutrons. This material is so dense that a mere sugar cube's worth of neutron star matter would ...

In particular, the study looks at the high-energy jet of particles being blasted across space by the supermassive black hole at the center of the galaxy Centaurus A. Jets are visible to different ...

A team at the Japan Proton Accelerator Research Complex (J-PARC) in Tokai shot a laser at a stream of muons to bring the fast-moving particles to a near-standstill. Then, the researchers applied ...