Fifty Years After Blue Book: End of Official UFO Investigations and Ongoing Fascination

To the point

An exhibit at the National Archives traces how a 1947 flying-saucer report started federal UFO investigations, how Project Blue Book ran from 1952 until about 50 years ago, and how the records and sightings like Riverside in 1951 show that official inquiries ended even as public interest continues.

50 Years Ago: Government Stops Investigating UFOs
archives.gov

50 Years Ago: Government Stops Investigating UFOs

Report of a “flying saucer” over U.S. airspace in 1947 caused a wave of “UFO hysteria” and sparked Federal investigation of unidentified flying objects. For more than 20 years, the U.S. Air Force analyzed UFO sightings and any security threat they posed; most notably through Project Blue Book, which launched in 1952.