2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33846Colliding Einstein-Maxwell-Scalar fields need not necessarily doomed to become in a spacelike singularity. Examples are given in which null singularities emerge as intermediate stages between a spacelike singularity and a regular horizon.6 pages, no figuresGeneral Relativity and Quantum CosmologyNull Singularities in Colliding Wavestext