Google Earth satellites have captured all kinds of puzzling images since it launched in 2005. Allen Thomson is a former CIA analyst who "has made something of a second career finding odd stuff in public satellite imagery," according to Wired.
But when he came across this image near the desert city of Kashgar in southwestern China, he was stumped. "I haven't the faintest clue what it might be -- but it's extensive, the structures are pretty big and funny-looking, and it went up in what I'd call an incredible hurry," he tells Wired.
If you have a theory, Wired is taking suggestions from us regular folks to help Thomson get to the bottom of this mystery.
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