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NASA's Unexplained Files: Secrets of the Alien Signals

NASA's Unexplained Files (2019)

Documentary | UK

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SEASON: 6

EPISODE: 6 - Secrets of the Alien Signals

SYNOPSIS

When NASA begins a strange experiment to communicate with dolphins, experts investigate if it's a prelude to making alien contact. But some fear that such a discovery could have apocalyptic consequences.

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