Duration
60 minutes
Series Info
Season 8 Episode 9
Quick Summary
Experts explore the problems with proving or disproving the existence of aliens
About This Program
The discovery of extra-terrestrial life faces a near impossible challenge, so a group of experts explore the problems with proving or disproving the existence of aliens
How the Universe Works broadcasts on Discovery History +1 at 3:00am, Friday, 12 December 2025. (Subtitles)
Channel Numbers:
Sky HD782Sky274Virgin381