On April 7th, 2021, the muon $(g-2)$ collaboration published Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm, a result which made it to standard news, partly under headlines like Farewell to the Standard Model (German source: Abschied vom Standardmodell)
The following quote from phys.org nicely summarizes what it is in general about:
The experiment at Brookhaven indicated that g-2 differed from the theoretical prediction by a few parts per million. This miniscule difference hinted at the existence of unknown interactions between the muon and the magnetic field—interactions that could involve new particles or forces.
Some variants of supersymmetry, in which so-called superpartner particles also explain dark matter, are no longer tenable by this measurement.
- An answer to What is the closest candidate for Dark Matter currently? points out that WIMPS are currently the most appealing candidate for dark matter.