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A Brazilian Navy photographer captured images of an object over a South Atlantic island, producing some of the most formally analyzed UFO photos.
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A Brazilian farmer described being taken aboard a craft and encountering a humanoid occupant; the case remains a foundational and disputed early abduction claim.
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A rural Kentucky family reported besieging small metallic creatures around their farmhouse for hours.
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USAF reconnaissance aircraft crew tracked an object simultaneously on radar, visually, and via electronic countermeasures gear across several states.
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West Virginia witnesses described a tall, glowing entity after seeing a fireball land; researchers largely attribute the report to a misidentified barn owl and meteor.
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Radar and visual sightings over the capital twice in one month triggered a major press event and Air Force response.
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A New Hampshire couple's account, partly recovered under hypnosis, became the first widely publicized alien-abduction case in the US.
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An Anglican priest and dozens of witnesses reported a detailed, extended observation of a craft with humanoid figures over Papua New Guinea.
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University of Colorado study commissioned by the Air Force concluded UFOs did not warrant further scientific study, effectively ending Project Blue Book.
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A Canadian prospector, Stefan Michalak, reported burns after encountering a landed, disc-shaped object in Manitoba.
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Multiple witnesses and a Canadian military/RCMP response followed reports of an object crashing into a Nova Scotia harbour.
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Airmen reported nuclear missile systems going offline coinciding with a UFO sighting near the Montana missile base.