Brazilian Coast: Argentine Steamer Crew Observes 100-Foot Cylindrical USO Pacing Ship
On July 30, 1967, an Argentine steamer was 120 miles off the Brazilian coast when the captain observed a cylindrical object over 100 feet long below the water's surface — no periscope, railing, or superstructure. It emitted a powerful blue and white glow while pacing the ship for 15 minutes before diving under.
Background
On July 30, 1967, an Argentine steamer was 120 miles off the Brazilian coast in the evening when the captain was called to the deck. Below the water's surface was a cylindrical object over 100 feet long but with no sign of a periscope, railing, conning tower, or other superstructure indicative of a submarine.
The anomaly emitted a powerful blue and white glow while pacing the ship for 15 minutes before diving under it, not to be seen again. Argentine maritime authorities classed it an 'Unidentified Submarine Object.'