Horizon
Season 43 Episode 19 - We are the Aliens
Clouds of alien life forms are sweeping through outer space and infecting planets with life – it may not be as far-fetched as it sounds. The idea that life on Earth came from another planet has been around as a modern scientific theory since the 1960s when it was proposed by Fred Hoyle and Chandra Wickramasinghe. At the time they were ridiculed for their idea – known as panspermia. But now, with growing evidence, it's back in vogue and even being studied by NASA. Horizon meets the scientists on a mission to get to the bottom of the beginnings of life on Earth - from the team in Texas who are lovingly building a robotic submarine called DEPTHX to explore a moon of Jupiter, to Southern India where they are investigating a mysterious red rain which fell for two months in 2001. According to local scientist Godfrey Louis, the rain contains biological cells unlike any he had seen before – with no DNA and the ability to replicate at 300°C. Louis has come to the conclusion that the cells are extra-terrestrial in origin.
Episodes in Season 43
Space Tourists
60 min
Waiting for a Heartbeat
60 min
A War on Science
60 min
The Lost City of New Orleans
60 min
Most of Our Universe Is Missing
60 min
Winning Gold in 2012
60 min
The Woman Who Thinks Like a Cow
60 min
The Genius Sperm Bank
60 min
Bye Bye Planet Pluto
60 min
We Love Cigarettes
60 min
Nuclear Nightmares
60 min
Tutankhamun's Fireball
60 min
Survivors Guide to Plane Crashes
60 min
Chimps are People Too
60 min
The Worlds First Face Transplant
60 min
Human v2.0
60 min
The Great Robot Race
60 min
Pandemic
60 min
We are the Aliens
60 min
