MUNICH, Germany, April 6 (TNSres) -- The Max Planck Society issued the following news: * * * When a black hole and a neutron star merge * * * On May 29, 2023, the LIGO Livingston detector observed a mysterious signal, called GW230529. It originated from the merger of a neutron star with an unknown compact object, most likely an unusually light-weight black hole. With a mass of only a few times that of our Sun, the object falls into the "lower mass gap" between the heaviest neutron stars and   more