Documented sightings reported in Russia, sorted from most recent.
Multiple witnesses in Voronezh reported a landed craft with tall beings and a robot, reported by official Soviet news agency TASS.
A spherical object crashed on Height 611, leaving metallic fragments with anomalous compositions analyzed by Soviet scientists in laboratory settings.
A massive jellyfish-like luminous object hovered over Petrozavodsk, prompting the Soviet government to establish official UFO research programs.
Nine hikers died under bizarre circumstances in the Ural Mountains; the lead investigator believed the deaths were connected to reported luminous objects in the area.
A Soviet pilot was scrambled to intercept a silver object over the USSR's most secret missile base; the object reportedly disabled his aircraft with a beam.
A 10-15 megaton airburst flattened 2,150 km² of Siberian forest with no impact crater - the first modern aerial anomaly to provoke published speculation about extraterrestrial craft.