On September 22, 1979 a satellite detects the unmistakable double flash pattern of a nuclear detonation somewhere near the Prince Edward Islands off the coast of South Africa. The Arecibo ionospheric observatory and radio telescope in Puerto Rico detects an anomalous ionospheric wave at the same time. The United States Sound Surveillance System or SOSUS reports a loud resounding "thud" that also coincides with the satellite and telescope data. What was it? Could a 2-3 kiloton nuclear device really have been detonated? Let us know what you think.

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