Multiple witnesses in Voronezh reported a landed craft with tall beings and a robot, reported by official Soviet news agency TASS.
A massive jellyfish-like luminous object hovered over Petrozavodsk, prompting the Soviet government to establish official UFO research programs.
A US Army helicopter was pulled upward 2,100 feet by an unknown force while a cigar-shaped object bathed it in a green beam, confirmed by ground witnesses.
A glowing UFO hovered over Malmstrom AFB while 10 Minuteman nuclear missiles simultaneously went offline with no technical explanation found.
Over 2,000 reports of rocket-shaped objects over Scandinavia prompted a Swedish military investigation that concluded 80% were unexplained.
Thousands of South Africans reported an advanced aerial vehicle performing impossible maneuvers in the weeks before WWI, part of the mysterious global 'phantom airship' wave that predated modern UFO sightings by decades.