For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when ...

The weak nuclear force doesn't play by the normal rules — and, in fact, it breaks one of the biggest rules of all.

Bizarre particle gains or loses mass depending on direction it travels By Michael Irving December 11, 2024 Scientists have accidentally discovered a strange particle that has mass when it moves in one ...

An artist's concept of multiple types of subatomic particles. Forget about turtles; for all practical purposes, it’s really particles all the way down. Consider the seemingly simple matter of their ...

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 a ...

For 16 years, scientists hypothesized the existence of a quasi-particle called a semi-Dirac fermion, named after mathematician Paul Dirac whose eponymous equation describes these fermions. Now, a new ...