A homemade machine, a flash of distortion, and a screw that vanished into thin air — Mike “Mad Man” Marcum’s experiment sparked one of the strangest time travel mysteries ever told.

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The genius inventor Dr. Emmett Brown was the instigator of all the haphazard happenings seen in Back to the Future, although the opening scene hints at experiments that we never got to see. While the ...

Hawking once said, "I have experimental evidence that time travel is not possible," and recounted his unusual test — which involved throwing a party on Jun 28, 2009. But Hawking didn't send out ...