Cases
Browse documented accounts by category, or search the archive. Case status describes the evidence; it does not establish a verdict.
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The Bloop: a mystery the ice could answer
An extraordinary underwater sound recorded in 1997 became a story about the unknown ocean. NOAA’s explanation points to fracturing Antarctic ice.
Filed
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Pavlopetri: streets beneath the shallows
Buildings, streets and burial places survive underwater off southern Greece. Modern surveys make a prehistoric settlement legible without turning reconstruction into evidence.
Filed
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Lake Nyos: when the danger rose from below
A sudden gas release in Cameroon killed more than 1,700 people in 1986. Research identified carbon dioxide stored in deep water as the central hazard.
Filed
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Flannan Isles: the light was ready, the keepers were gone
Three keepers disappeared from an Atlantic lighthouse in 1900. The official records offer a probable explanation, but no witnessed account of their final moments.
Filed