Transient Flashes in Historic Palomar Photographs Linked to Nuclear Tests, Amid Renewed UAP Discourse

To the point

A study of Palomar Observatory photos from 1949 to 1957 found about 106,000 brief, star‑like flashes in the northern United States near nuclear test sites that were more common after tests and increased with UFO sighting reports, especially when a sighting and a test occurred together, though the exact cause is uncertain and solar reflections from orbiting objects are a possible explanation.