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 ...

High-energy cosmic rays, 10 million times more powerful than particles accelerated in Earth's strongest atom smasher, may ...

A new study, published in the journal Physical Review Letters, suggests that some of the highest-energy cosmic rays could ...

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

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

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 ...

Neutrinos are so tiny, so nearly massless, that they’re very difficult to isolate. But we know for sure that they’re produced ...

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 ...

Tiny particles such as ice crystals or ash particles tend to oscillate as they settle through the atmosphere. In their experiments, the scientists were able to track non-spherical particles of size ...

CAIRO — An international team of researchers said Sunday they will soon begin analyzing cosmic particles collected inside Egypt's Bent Pyramid to search for clues as to how it was built and learn more ...