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Unexplained encounters at sea

10 famous cases at sea: 2 sky, 1 creatures, 7 voices & sounds. Famous cases set out what was reported and the explanations offered, without taking a side.

Famous cases

The Nimitz 'Tic Tac'UnexplainedPacific Ocean, off Baja California · 14 November 2004The BloopExplainedSouth Pacific Ocean, west of the tip of South America · 1997The 52-Hertz WhaleUnidentifiedNorth Pacific Ocean · Heard since 1989The UpsweepMostly explainedRemote South Pacific Ocean · Since 1991The HMS Daedalus Sea SerpentDisputedSouth Atlantic Ocean, west of southern Africa · 6 August 1848The Bio-DuckExplainedSouthern Ocean, off Western Australia and Antarctica · Heard since the 1960s; identified in 2014Earth's 26-Second PulseUnexplainedGulf of Guinea, off West Africa · Detected since the early 1960sThe Song of the Ross Ice ShelfExplainedRoss Ice Shelf, Antarctica · Recorded 2014–2017; reported in 2018The Mariana BiotwangExplainedMariana Trench, Western Pacific · Recorded since 2014; identified in 2024The 'Gimbal' and 'GoFast' VideosDisputedOff the coast of Florida, Atlantic Ocean · 2015; released 2017–2020