Declassified UFO files have exposed an extraordinary US investigation into claims that a ‘dead spaceman’ was discovered inside a mysterious metal sphere. The object was said to have plummeted into the center of Conde, a municipality in the Brazilian state of Bahia, on November 8, 1963, blasting a hole approximately 13 feet deep. Reports claimed the sphere had glass-covered windows and contained a human body dressed in heavy clothing marked with inscriptions nobody could decipher. The astonishing account sparked inquiries by American officials, who asked diplomats in Brazil to determine whether something inexplicable had fallen from the sky. Details of the alleged crash and its mysterious occupant were circulated among the State Department, Department of Defense and NASA. For six days, officials pursued conflicting reports involving a possible spacecraft, a dead crewman and a suspected weather balloon. But when US diplomats attempted to verify the account, the extraordinary mystery bega...