Are we truly being watched by aliens from outer space? Arthur C Clarke searches for the answer. Subscribe to Our World: https://bit.ly/3xnPuGL

Did the Apollo astronauts see a UFO? Did President Carter see one? Arthur C Clarke looks into one of the most pervasive phenomena of our time, and offers an examination of million-dollar investigations and the strange stories of witnesses.

This film was first broadcast: 04 Nov 1980

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