An article published in “The Astrophysical Journal” reports a study on the kilonova observed on May 22, 2020, and its consequences. It was the merger between two neutron stars that generated a short gamma-ray burst cataloged as GRB 200522A and as a result, produced what from the first analyzes appears to be a magnetar, still a neutron star but of the type characterized by an extremely powerful magnetic field. A team of researchers led by astronomer Wen-fai Fong of Northwestern University in Evanston, Illinois, USA, considered various possible explanations for the observed event, which had an exceptional brightness, and a kilonova that produced a magnetar was the most likely explanation.