美国宇航局的科学家比尔·库克说：“它们是极其罕见的现象。”比尔此前曾发现了存在阿拉巴马州摄像机里面的极光照片，并把它们发布在马歇尔航天飞行中心的博客上面。
"They are very rare events," said NASA scientist Bill Cooke, who found the aurora photos in the Alabama camera's archive and posted them on the Marshall Space Flight Center's blog.
后来，由库克描述了在维多利亚晚期时候的形式逻辑的重要性和提出图解的信息视觉推理的数学先驱，如维恩、马歇尔和拉罗尔等人。
Cook describes the importance of late Victorian logic in the form of diagrammatical information put forth by visual reasoning and mathematical pioneers such as Venn, Marshall, and Carroll.
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