Human-made microbeads don’t always go with the flow. Under certain conditions, the artificial particles can align themselves with a fluid’s flow and then swim upstream, researchers report May 1 in ...

Muons are a key subatomic particle in the discovery of new physics, but after particle collision, they’re difficult to track.

Physicists may have just cracked open a hidden side of the quantum world. For decades, every known particle was thought to ...

But such measurements are notoriously challenging: the instruments used are themselves governed by quantum laws, and their interaction with particles can alter the very properties they are meant to ...

Scientists have observed a unique particle that moves easily one way, yet resists at 90 degrees. These semi-Dirac fermions were observed using their energy signature in a topological metal. Particles ...

More than 2,000 peer-reviewed studies spanning 50 years demonstrate that microplastics are non-toxic, with exposure levels ...

For decades, scientists have explored the enigmatic world of fundamental particles, uncovering the building blocks of our universe. But what if some of these particles, once deemed impossible, ...

Particles raining down from space offer 3-D views inside swirling tropical storms. Muons created from cosmic rays that smash into Earth’s upper atmosphere have revealed the inner workings of cyclones ...

Small particles from tires inhibited the growth and caused adverse behavioral changes in organisms found in freshwater and coastal estuary ecosystems, two new research papers found. Small particles ...