What makes up the matter we perceive in the universe? To start, there are the usual suspects, like electrons, protons, quarks and neutrinos. But if those particles aren't strange enough for you, I'm ...

Phase transitions in the collective motions of self-propelled particles are directly impacted both by the initial velocity of each particle, and the repulsive radius surrounding them. Collective ...

In new research, scientists find that flocks of birds may become ordered after a disordered start. The way flocks and other “collective motions” form has eluded scientists for a long time.

In the strange and fascinating world of quantum mechanics, particles have long been sorted into just two types: fermions and bosons. These labels help explain how matter forms and how forces work.

A complete survey of all the particle and antiparticle activity that goes on during the Sun’s 11-year cycle has found previously unknown ways these particles behave. Cosmic rays coming from outside ...

Imagine a liquid that flows freely one moment, then stiffens into a near-solid the next, and then can switch back with a simple change in temperature. Researchers at the University of Chicago Pritzker ...

I keep coming back to a strange idea: what if everything we know about quantum physics is already encoded inside a single atom? Not in a mystical sense, but in the very real way that one tiny system ...

Known as semi-Dirac fermions, particles with this bizarre behavior were first predicted 16 years ago. The discovery was made in a semi-metal material called ZrSiS, made up of zirconium, silicon and ...

Particle size has long been a key method for characterization. Most particle size measurement techniques are indirect and assume that all measured particles are round when providing size results.