The ten miners who report seeing three enormous black triangles pass overhead a low altitude may well be describing a genuine unknown. There have been a very large number of black triangles sighted recently. They are always silent, often at low altitude, and moving slowly. These three objects are no exception to this rule.
The UFO phenomenon has been lingering in the background for over sixty years. What would happen if it suddenly came into focus? There is really a great deal of activity lately, and mankind is approaching the environmental crisis the visitors have been warning about virtually from the beginning of the modern emergence of the phenomenon.