The long-standing problem of the maximum mass that can be achieved by the compact objects, with clear implications for the equation of state of matter above the nuclear satura-tion density (see ref. [1] and references therein), is receiv-ing a new twist with the latest data from binary systems and NS-NS merging events. Long ago, double neutron stars sys-tems (DNS) data installed the idea of a “canonical” mass of～1.4 M☉, but later work provided evidence for heavier objects with increasing degree of confidence, and it became clear that at least a second “mass scale” had to be present [2].