When Satellites Spy on You, Try Spying Back

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For mere proles like you and me, it can be hard to get a straight answer from the Air Force, NASA and other space-faring agencies about precisely what is up there, what it’s doing and where exactly it all is at a given moment.

Now a pair of enterprising Frenchmen have decided to answer at least one of those questions for themselves, using a modified consumer-grade telescope, a small motor, a hand-held controller and a video camera. The result is a do-it-yourself satellite tracker capable of recording the movements of America’s most secretive spacecraft.

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