"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.

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。

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On Saturday, Bill Cooke from NASA's Meteoroid Environment Office explained that the bright, fast-flying object was, in fact, a meteor.

CNN: Meteor lights up East Coast -- and social media

Bill Cooke, head of NASA's Meteoroid Environment Office, said scientists believe the object originated in the asteroid belt between Mars and Jupiter.

CNN: Planet of sound: Meteor blast resonated around Earth

"It exploded in a flash nearly 10 times as bright as anything we've ever seen before, " said Bill Cooke, of NASA's Meteoroid Environment Office.

CNN: Bright explosion on moon visible from Earth, NASA says