A spherical object crashed on Height 611, leaving metallic fragments with anomalous compositions analyzed by Soviet scientists in laboratory settings.
US Air Force personnel at a NATO base in England reported close encounters with a triangular craft over multiple nights, supported by physical evidence and an official memo.
Scottish forestry worker Robert Taylor was physically attacked by a UFO and smaller spheres, leading to the only criminal investigation of a UFO encounter in British history.
Fourteen schoolchildren and dozens of adults reported UFOs and humanoid figures across Pembrokeshire, Wales, creating the 'Welsh Triangle' phenomenon.
Three NASA astronauts aboard Skylab 3 observed and photographed a bright red rotating object from orbit for over 10 minutes, with NORAD unable to identify any known object in the vicinity.
A controlled fireball landed near Kecksburg, PA; witnesses described an acorn-shaped craft with hieroglyphics before the Army removed it under secrecy.