A Russian motorist's dashcam captured a mysterious flash that lit up the night sky over the Ural Mountains last Friday. "For a few moments night turned into dazzling day, then everything went dark again," one witness told The Siberian Times. Some have speculated a missile explosion or object from space caused the bright flash but meteorologists and scientists are baffled by the phenomenon. The strange light was not accompanied by sound and, according to a local observatory, nothing fell from the sky that day. Check out the video here.