For ionization is the phenomenon that causes the formation of intense light mass around a UFO probably due to contact magnetic field of the aircraft with the terrestrial environment (as water or air ): The light is variable volume and directly proportional to field and density of the medium. Some sightings in the light output was so powerful to cause serious damage to the eye of those present, in addition to preventing them will take even the smallest detail on the disc. According to the effect of concentration , The intensity and density of luminous mass can vary: that is, for example, results in major appliances such as " cigars of the clouds "Stationed in the air, because in cases of sightings of this type of aircraft sightings often lose their sight. In addition, the colors vary depending on the speed and evolution of , Unfortunately the factors that indicate these variations seem to be too many to be calculated: it is known, however, that the action exerted by the atoms in the immediate vicinity of the aircraft leaves cloud of electrons that cause the different effects of light ( ionization phenomenon ). This explanation seems to be the forms that takes light from the crowd around all'UFO.