Scientists have released landmark peer-reviewed research identifying a statistical link between unexplained aerial phenomena and Cold War–era nuclear weapons testing. The findings mark a significant milestone for unidentified anomalous phenomena (UAP) studies, representing one of the first instances in which such research has passed the stringent review standards of mainstream scientific journals.

The study was led by Beatriz Villarroel of the Nordic Institute for Theoretical Physics and Stephen Bruehl of Vanderbilt University Medical Center. The researchers examined more than 100,000 mysterious bright points—known as “transients”—recorded on photographic plates from the Palomar Observatory Sky Survey between 1949 and 1957.

These star-like objects appeared briefly and then vanished, captured on film before humanity had launched its first artificial satellite. Statistical analysis revealed that transients were 45 percent more likely to occur within a three-day window surrounding nuclear weapons tests, with the strongest correlation observed on the day following a test.