ZME Science - Great coverage of Beatriz Villarroel's UAP Transient study - Mysterious Flashes in Pre-Satellite Sky in the 1950s Could Be Non-human Technosignatures - A new study goes as far as saying some of the mysterious flashes over California in the 1950s could be a non-human technosignature.

https://arxiv.org/pdf/2604.04950 Dr Villarroel's Response: The mystery deepens. An independent researcher has uncovered an unexpected anticorrelation between VASCO transient detections and geomagnetic storm activity. This finding seriously challenges explanations based on cosmic rays or plate defects, even without considering the deficit of transients in Earth’s shadow. I’m grateful to independent researchers who have the courage and integrity to examine this topic seriously and in good faith...