Unsolved:Unidentified submerged object

From HandWiki
Short description: Unusual phenomenon in water that is not readily identifiable

An unidentified submerged object (USO) is an unidentified object submerged in water. The U.S. Navy classifies USOs as whales, sharks, and other sea creatures that can interfere with ship maneuvering, sonar operations, and oceanographic research.[1]

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