Cool-headed meteorologists were quick to put the story to bed: it was just an optical illusion, the cause of sunlight hitting a cloud disturbed by wind or plane traffic in just the right way.

头脑冷静的气象学家很快把这件事搁置起来：认为它只是一种光的幻觉，起因于阳光击中了一朵云彩，刚好能以一种合适的方式被风或飞机交通而使人感到不安。