一粒灰尘能怎么样?它使得匹克林十几年的努力付诸东流。在天文学家洛韦尔预言在海王星轨道外有颗尚未发现的行星后,匹克林用望远镜拍照观察了十几年,却一无所获。直到冥王星被发现后,他才恍然大悟记起自己拍的照片上有这个点。只是,当时他记得镜头上有粒灰尘,正在如今冥王星的 What about a grain of dust? It made Peaking’s decades of hard work go down the drain. After astronomer Rockwell predicted that there was an undiscovered planet outside of Neptune’s orbit, Becklin had been photographed with a telescope for more than 10 years but found nothing. It wasn’t until Pluto was discovered that he suddenly realized that there was this on his own photograph. Only when he remembered that there was dust on the lens and it was now Pluto’s