The Nobility's force fields draw on the power that moves the Milky Way. They are activated by a thought projected device. Only the Sacred Ancestor can break through them. There are some force fields not used completely for defensive purposes. Weapons, objects and foes alike are broken down to their constitute atoms, or may have anti-matter properties to the field making targets cease to exist. Lord Valcua said a Nobility Force Field can defend against his Particle Space Cannon.
The Nobility also have a special field that allows them to travel at or near light speed where ever they wish to go. May be another feature of this forcefield or another