Documented sightings in California, sorted from most recent.
Peer-reviewed Nature study found statistically significant correlations between 1950s sky anomalies, nuclear weapons testing, and UAP reports at Palomar Observatory.
Multiple UFOs observed and filmed over Fresno across several days, with two pilots reporting objects to air traffic control and police helicopter dispatched to investigate.
The Sol Foundation's second annual academic symposium at Fort Mason brought together scientists, military officials, and investors to advance UAP research and policy.
An Air Force tracking-station film of a 1964 Atlas-F missile test reportedly captured a disc-shaped object firing four light-flashes that knocked the dummy warhead off-trajectory - one of the foundational nuclear-UAP-interaction cases.
The US military fired over 1,400 anti-aircraft rounds at unidentified objects over LA weeks after Pearl Harbor, with a famous searchlight photo capturing the event.