News Physics

A new experiment slashes the maximum possible mass of tiny neutrinos

The subatomic particle must have a mass less than 1.1 electron volts

KATRIN experiment

The KATRIN experiment has better pinned down a cap on the mass of neutrinos, using a huge device called a spectrometer (shown in this 2006 photo in the German town of Eggenstein-Leopoldshafen on its way to a lab in Karlsruhe).

Karlsruhe Institute of Technology

By Emily Conover

- More than 2 years ago

The maximum possible mass of a barely there particle has just gotten smaller.