NASA's Unexplained Files

Season 6 Episode 6: Secrets of the Alien Signals

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.

Genre:

Documentary , Talk , Mystery

Seasons:

6

Episodes:

47

Actor:

Quality:

HD

Status:

Ended

First Air:

2012

IMDb:

7.0