Mysterious “star-like” flashes of light spotted in photographs of sky surveys in the 1950s have long been associated with the reported sightings of unidentified flying objects or UFOs.
These flashes, lasting less than about 50 minutes, appear in one photo, but are gone before the next is taken of the same sky region.
Proposed explanations for this anomaly have ranged from asteroids to unidentified anomalous phenomena, or (UAPs), which is the new official name for UFOs.
But now, scientists have found a strong link between these flashes and above-ground nuclear weapons testing.
