Should we take UFOs a little more seriously? For a long time, flying saucers were the reserve of science-fiction fans. Now researchers have started to investigate scientifically what lies behind these strange phenomena. This episode of ARTE's science series "42 – The Answer to Almost Everything" asks whether we could be on the cusp of an extraordinary discovery.

Among the researchers in the film is astronomer Beatriz Villarroel of Stockholm University.

I worked as a camera assistant on the production in Sweden.

The documentary (28 min) can be watched on ARTE until June 2029.