Nasa's Unexplained Files

2:00 PM to 3:00 PM

Friday 30 May

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 at 2:00 PM, Friday 30 May. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries