The Colombian navy on Wednesday announced its first seizure of an unmanned "narco sub" equipped with a Starlink antenna off its Caribbean coast. The semisubmersible vessel was not carrying drugs, but ...

Discovery's new documentary "Implosion: The Titanic Sub Disaster" premiered Wednesday night, revealing that "Expedition Unknown" host Josh Gates actually toured the OceanGate Titan submersible two ...

Fast, stealthy, and cheap—autonomous, semisubmersible drone boats carrying tons of cocaine could be international law enforcement’s nightmare scenario. A big one just came ashore. On a bright morning ...