The distribution of the detectors triggered allows the direction of the Cherenkov radiation, and therefore the flight direction of the muon, to be worked out.
According to the physicists, when a large black hole captures a smaller object like a medium-sized star the process causes gravitational radiation to be emitted in a preferential direction.
Our star can sometimes despatch big bursts of shortwave and longwave radiation, superfast particles and colossal volumes of charged gas (plasma) in our direction.