News Particle Physics

Dark matter experiments get a first peek at the ‘neutrino fog’ 

It’s a new way to observe neutrinos, but points to a future obstacle in dark matter detection 

A metal structure in the innards of the XENON-nT experiment.

The XENONnT dark matter experiment has spotted signs of neutrinos interacting in its detector (shown).

XENON Collaboration

By Emily Conover

The neutrino “fog” is beginning to materialize.

Lightweight subatomic particles called neutrinos have begun elbowing their way into the data of experiments not designed to spot them. Two experiments, built to detect particles of dark matter, have caught initial glimpses of neutrinos born in the sun, physicists report.

“That’s

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