Nasa's Unexplained Files

Secrets of the Alien Signals
New Episode

Series 4 - Episode 8 Secrets of the Alien Signals

Fri 17 Jul 9pm - 10pm Quest
HD SUB WIDE
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Summary

Experts examine the possibilities of making alien contact as they look back at an experiment Nasa embarked on as they attempted to communicate with dolphins. Last in the series.
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