The Sky At Night - What Have UFOs Done for Us?

Seizoen: 2015 - Aflevering: 2 / 752 - Eerst uitgezonden: 08 februari 2015 - Episode ID: 1095541

From unexplained flashes in the night sky to flying saucers, this episode delves into the mysterious world of UFOs. How our drive to explain these bizarre phenomena, and desire to discover little green men, has in fact transformed our understanding of the universe.