As I related here:

http://www.bautforum.com/life-space/...ml#post1155152

when I initially saw the Goodyear blimp (especially with it distorted as a reflection off a window) I did, for a bit, seriously consider the possibility that it was an alien spaceship. To be sure, I was a lot younger then, and I did identify it in a bit, but from that experience, I can easily understand how people can misidentify things.

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The Leif Ericson Cruiser