2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/111352We investigate the possibility of constructing a covariant Newtonian gravitational theory and find that the action describing a massless relativistic particle in a background Newtonian gravitodynamic field has a higher-dimensional extension with two times.Latex, 13 pagesHigh Energy Physics - Theorytext