A Starfleet task force led by Admiral James T. Kirk of the USS Enterprise managed to destroy the Omega sphere after destroying its three power spheres. However, with the destruction of the Omega sphere, the explosion destroyed subspace in a three light year distance. Kirk thereafter recommended the establishment of the Omega Directive, ordering the destruction of Omega molecules whenever discovered, and limiting knowledge of the molecule to starship captains and flag officers. The event was later known as the Kettaract Incident. (ST video game: Legacy)