Unidentified Underwater Phenomena

To a large extent, it is about mysterious submarines that do not seem to belong to any known country and are observed by the crews of ships and aircraft and tracked by radar and sonar.

maxime raynal from France, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons

On November 15, 2022, Albert Olimidin, in the Russian publication EkhoPlanet, again evokes the issue of unidentified underwater objects. To a large extent, it is about mysterious submarines that do not seem to belong to any known country and are obse…