In 2011, a team of Swedish treasure hunters stared at a sonar image of a 200-foot, perfectly circular object resting on the barren Baltic seabed. It looked suspiciously like a sunken UFO, and the world's tabloids were only too happy to draw the Millennium Falcon right on top of it.
This episode tracks how a routine shipwreck search became a global mystery, and how science quietly dismantled it. We follow the Ocean X dive team, the geological reality of the rocks, the faulty equipment behind the famous image, and the financial incentives that kept the mystery alive long after the facts were in.
How pareidolia and tabloid-drawn outlines led the public to see a spaceship in a blurry sonar smudge
Why recovered samples were ordinary granites, gneisses, and sandstones shaped by Ice Age glaciers, not exotic alien alloys
The Woods Hole critique that the cheap, miswired, badly calibrated sonar likely mirrored a jagged rock into a fake circle
How the so-called crash runway was identified as a drumlin, one of dozens of glacial ridges all pointing the same direction
The catch-22: Ocean X never tested the object itself, because solving the mystery would have destroyed their submarine tourism business
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