2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/87629An exotic spacecraft propulsion technology is described which exploits parity violation in weak interactions. Anisotropic neutrino emission from a polarized assembly of weakly interacting particles converts rest mass directly to spacecraft impulse.Submitted to Acta Astronautica. 10 pages, one tableGeneral Physicstext