UFO的出现常常会伴随着强烈的光芒。在远处的高空它们以亮点、亮条、亮盘的形状来展现自己的身姿，许多目击者看到这些发光的物体，就会联想到是“外星人”，是他们驾驶着UFO访问地球，而这些飞行物往往会发出金属般的光芒。让我们试想一下，只通过目击者的视觉就能判断飞行器 UFO appearance often accompanied by a strong light. At high altitudes, they show themselves in the form of bright spots, bright bands, and bright plates. Many witnesses see these luminous objects as “aliens” when they visit UFO Earth, and these flying objects tend to emit a metallic light. Let us imagine that the aircraft can be judged only by the eyewitness’s vision