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A new piece in the matter-antimatter puzzle

03/25/25

The LHCb experiment at CERN has revealed a fundamental asymmetry in the behavior of particles called baryons.

DESI’s instrument, a long black cylinder supported by the metal telescope framework, points at the domed ceiling. The dome interior is bathed in blue light.

03/19/25

New DESI results strengthen hints that dark energy may evolve

Combining the DESI data with other experiments shows signs that the impact of dark energy may be weakening over time—and the standard model of how the universe works may need an update.

03/18/25

Scientists recall the discovery of the top quark 30 years ago at Fermilab

On March 2, 1995, the top quark discovery at Fermilab was announced by scientists on the CDF and DZero collaborations, and the sixth and final quark was added to the Standard Model.

Illustration of four physicists profiled in the article

03/12/25

From the lab to the classroom

Most students who earn a PhD in physics build careers outside of research. Meet four physicists who went from particle physics research to teaching high school physics and math.

Conceptual illustration of a firehose shooting out particles

02/26/25

Explain it in 60 seconds: High-Luminosity LHC

The upgrade to the Large Hadron Collider will allow scientists to better study known phenomena and to search for new ones.

02/18/25

Why do neutrinos rarely interact?

Neutrinos are notoriously aloof, but it’s not entirely their fault.

Illustrated portraits of four DUNE photographers

02/11/25

Photographing DUNE

Documenting the work of building the world’s largest neutrino experiment presents photographers with a unique set of challenges.

01/28/25

How do scientists get lead into the LHC?

Once a year, the Large Hadron Collider smashes lead ions. But how do scientists get a heavy metal into a particle accelerator?

Illustration of a scientist "listening" for background noise

01/23/25

Bringing background to the forefront

SNOLAB scientists meticulously measure the signals that interfere with sensitive physics experiments.

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