A combination of theoretical calculations and information from astronomical observations indicates that massive neutron stars can contain cores filled with free quarks

The new analysis continues to find tension with the Standard Model, but more data are needed to identify its cause

The MoEDAL collaboration at CERN reports the first search at a particle accelerator for particles with both electric and magnetic charge

An experiment performed at CERN’s ISOLDE facility shows that the nucleus of the isotope radium-222 is pear-shaped

Knowledge of this almost uncharted region could help cast light on how gold and other heavy elements form in the universe

For the first time, LHCb uses beauty baryons to test this key principle of the Standard Model

The smallest LHC experiment is set to probe the first interaction that triggers a cosmic-ray shower in the atmosphere

Additional evidence of an unknown particle from a Hungarian lab gives a new impetus to NA64 searches

The first-of-its-kind detector could initiate a new era in neutrino physics at particle colliders

How particle measurements made by the NA61/SHINE experiment at CERN are helping neutrino experiments in the US and Japan

A new run of the CLOUD experiment examines the direct effect of cosmic rays on clouds

The CMS collaboration has measured for the first time the variation, or “running”, of the top-quark mass