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Massive stellar gravitational collapse is not an endless process. TheStandard Model of particle physics predicts the existence of a repulsiveinteraction, two-neutrino mediated, with a coherent weak charge of macroscopicmatter proportional to the number of constituents. After gravity, this is thesecond longest range -- microns -- force and, below nanometers, its magnitudeovercomes the attractive gravitation. The layer distribution of pressure insidea compact neutronized uniform sphere, independent of its size, is compared forthe two interactions with opposite pressure gradient. Taking as reference themean square radius, the volume evolution of the pressure, for fixed mass andweak charge, leads to an equilibrium scenario with a characteristic black-holeradius $R_B = 1.58$ nm. This size scale should be universal, independent of themass, as long as the mass is nearly proportional to the weak charge.

No space-time singularity in black-hole physics