Nasa's Unexplained Files

3:00 PM to 4:00 PM

Thursday 28 August

Secrets of the Alien Signals

Season 4 of 8

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

Nasa's Unexplained Files airs on Discovery History +1 at 3:00 PM, Thursday 28 August. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries