Uncertain Underwater Disc Off Africa: Natural vs. Artificial Explanations Echoing a Baltic Sea Mystery
To the point
Off Africa, a disc-shaped sea-floor feature has sparked a debate over natural versus artificial origins, echoing a Baltic Sea mystery revealed in 2011 by Ocean X led by Peter Lindberg and Dennis Åberg, but with only a few dives and unclear data, critics point to artist renderings and sonar distortions.
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