New ATLAS measurement of lepton flavour universality, a key feature of the Standard Model, in decays of the W boson is more precise than all previous measurements combined

Using the outstanding tracking capabilities of the CMS detector, the collaboration observed two photons producing two tau-leptons in proton–proton collisions

The CERN facility allowed scientists to see how this rare Earth metal is synthesised in stars. The results open up new questions about stellar nucleosynthesis and the chemical evolution of galaxies

The result has implications for future searches for rare beauty meson decays and for the interpretation of results from the Fermilab g-2 experiment

In cooling positronium with laser light for the first time, AEgIS may also have taken the first step towards a matter–antimatter system that emits laser-like gamma-ray light

This search uses computer vision techniques to look for collimated bursts of light, a potential signature of Higgs partner particles

The CMS collaboration has measured the speed of sound in the quark–gluon plasma more precisely than ever before, offering new insights into this extremely hot state of matter

New ALICE measurements shed light on the dynamics of charm and beauty particles in quark–gluon plasma

The results imply that climate models are underestimating the formation rates of aerosol particles