NASA's Unexplained Files Season 6 Episode 6 - Secrets of the Alien Signals

Airdate: 2019-May-16

Episode summary:

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.

About NASA's Unexplained Files series:

On NASA’s Unexplained Files, strange flying objects have been caught on NASA’s cameras and astronauts have reported seeing UFOs. Some o...Show more >