For a few years, one of particle physics’ most unsettling numbers seemed to be pointing somewhere strange. The trouble ...

Tens of kilometers above Earth's surface, high-energy particles from outer space constantly strike the atmosphere, creating ...

A tiny discrepancy in particle physics has loomed for decades as an exciting possible crack in one of science's most ...

An analysis of counting-efficiency effects in non-volumetric particle counters explains discrepancies across channels.

New high-altitude measurements have revealed a hidden population of extremely small, organic-rich aerosol particles in the lower stratosphere. The findings suggest that these ultrafine aerosols, ...

Electrons are really, really round. A new measurement confirms the subatomic particle’s spherical shape to a record level of exactness, physicists report in the July 7 Science. That near-perfect ...

Wildfire smoke has dominated our skies, headlines and lungs over the past few weeks. Small particles which can lead to ...

A soft polymeric microgel glues onto nanoscale plastic particles in water, aggregating them for removal at sizes that defeat ...