Documented sightings reported in 1977.
Brazilian Air Force 'Operation Saucer' investigated UFOs reportedly attacking residents with beams of light, producing over 500 photographs.
A massive jellyfish-like luminous object hovered over Petrozavodsk, prompting the Soviet government to establish official UFO research programs.
Fourteen schoolchildren and dozens of adults reported UFOs and humanoid figures across Pembrokeshire, Wales, creating the 'Welsh Triangle' phenomenon.