About this showing of NASA's Unexplained Files
When NASA begins an experiment to communicate with dolphins, experts examine if it's a prelude to making alien contact. Will it have dire consequences.
Previously on TV
NASA's Unexplained Files
Secrets Of The Alien Signals
Previously shown on Discovery .History+ 1 on Wed 9 Sep 2026 at 15:00.
This showing has ended
This showing was on Discovery .History+ 1 at 15:00 on Wed 9 Sep 2026. See future airings below or open the main programme page for the latest TV times.
Airing details
ChannelDiscovery .History+ 1
StartsWed 9 Sep 2026, 15:00
EndsWed 9 Sep 2026, 16:00
Episode / edition: Secrets Of The Alien Signals
SkySky Q / Satellite272