The United States Congress recently held a hearing into US government information pertaining to “unidentified aerial phenomena” (UAPs).

The last investigation of this kind happened more than 50 years ago, as part of a US Air Force investigation called Project Blue Book, which examined reported sightings of unidentified flying objects (note the change in name).

The current hearings are the result of a stipulation attached to a 2020 COVID-19 relief bill, which required US Intelligence agencies to produce a report on UAPs within 180 days. That report appeared in June last year.

But why would governments be interested in UAPs? One exciting line of thought is UAPs are alien spacecraft visiting Earth. It’s a concept that gets a lot of attention, by playing on decades of sci-fi movies, views about what goes on in Area 51, and purported sightings by the public.

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