What Have UFOs Done for Us? The Sky at Night : Season 59 Episode 2
BBC Four 20m
Aired: February 8th, 2015 @ 10:00 PM EST on BBC Four
From unexplained flashes in the night sky to flying saucers, the team delves into the mysterious world of UFOs. How our drive to explain these phenomena, and desire to discover aliens, has transformed our understanding of the universe.
