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Three Texas motorists reported severe radiation-like burns after encountering a diamond-shaped object escorted by helicopters.
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A Minnesota deputy sheriff reported his patrol car was struck by a light source, cracking a windshield and stopping his watch and dashboard clock.
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Australian pilot Frederick Valentich vanished after reporting a UFO was following his plane over the Bass Strait; no wreckage was ever found.
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Unusual lights filmed from a cargo plane and TV crew off New Zealand's coast were later partly attributed to squid-boat lights and the planet Venus.
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Welsh schoolchildren reported a landed, cigar-shaped object near their school, part of a wider wave of local sightings.
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A jellyfish-like light formation appeared over the Soviet city, later linked by some analysts to a contemporaneous rocket launch.
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NASA's independent study team released a 2023 report recommending better data collection for UAP research and finding no evidence UAP have extraterrestrial origin, while criticizing the stigma around reporting.
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Former intelligence official David Grusch publicly alleged the existence of a decades-long, multi-agency program retrieving crashed non-human craft; the claims remain uncorroborated.
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Purported top-secret papers describing a 1947 government panel managing alien contact surfaced anonymously; the FBI and most researchers concluded the documents are forged.
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Bob Lazar claims to have worked reverse-engineering alien craft at a secret 'S-4' site near Area 51; his account and educational credentials remain unverified and disputed.