Archive index
Investigations
Browse all dossiers in the archive. Each investigation compiles documented claims, counterarguments, key figures, timelines, and source references.
151 DOSSIERS
Tamam Shud (Somerton Man)
The 1948 death of an unidentified man on Somerton Park beach in Australia, with a cryptic message reading 'Tamám Shud' (ended) found in his pocket.
Dyatlov Pass Incident
The mysterious 1959 deaths of nine experienced hikers in the Ural Mountains under circumstances that investigators described as involving 'irresistible force.'
Tunguska Event
The massive 1908 explosion in Siberia that flattened 2,150 square kilometers of forest, widely attributed to a meteor airburst but still generating alternative theories.
Lead Masks Case
The 1966 deaths of two Brazilian electronics technicians found dead on a hilltop wearing lead masks, with no apparent cause of death and a cryptic note about extraterrestrial contact.