Phantom Signals

5:00 AM to 6:00 AM

Friday 25 April

Origin Unknown

Season 1 Episode 6

The phenomenon of unknown signals - from ghostly voices to an infamous Soviet cosmonaut’s last communication, plus mysterious cries for help over the radio

Phantom Signals airs on Sky History 2 HD at 5:00 AM, Friday 25 April. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

General