Baltic Sea Anomaly: A 2011 Sonar Feature with Natural Explanations and Unproven Theories
To the point
Discovered in 2011 by Peter Lindberg, Dennis Aberg and OceanX, a large circular sonar image on the Baltic Sea floor sparked sensational rumors of a sunken UFO or Atlantis, but most scientists view it as a natural seabed feature and there’s no agreed explanation.
