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.
| Title | Horizon - Season 43 Episode 19 : We are the Aliens |
|---|---|
| Alternative Titles | BBC Horizon |
| Subtitle Available |
 ETC.
|
| First Air Date | 1964-02-04 |
| Last Air Date | 2024-07-22 |
| Number of Episodes | 1169 |
| Number of Seasons | 60 |
| Genres | Documentary, |
| Networks | BBC Two, |
| Casts | |
| Plot Keywords | , |
Episodes List
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Horizon Season 43 :Episode 1 Space Tourists Space Tourists
2006-01-12Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 2 Waiting for a Heartbeat Waiting for a Heartbeat
2006-01-19Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 3 A War on Science A War on Science
2006-01-26Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 4 The Lost City of New Orleans The Lost City of New Orleans
2006-02-02Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 5 Most of Our Universe Is Missing Most of Our Universe Is Missing
2006-02-09Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 6 Winning Gold in 2012 Winning Gold in 2012
2006-03-18Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 7 The Woman Who Thinks Like a Cow The Woman Who Thinks Like a Cow
2006-06-08Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 8 The Genius Sperm Bank The Genius Sperm Bank
2006-06-15Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 9 Bye Bye Planet Pluto Bye Bye Planet Pluto
2006-06-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 10 We Love Cigarettes We Love Cigarettes
2006-06-29Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 11 Nuclear Nightmares Nuclear Nightmares
2006-07-13Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 12 Tutankhamun's Fireball Tutankhamun's Fireball
2006-07-20Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 13 Survivors Guide to Plane Crashes Survivors Guide to Plane Crashes
2006-10-03Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 14 Chimps are People Too Chimps are People Too
2006-10-10Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 15 The Worlds First Face Transplant The Worlds First Face Transplant
2006-10-17Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 16 Human v2.0 Human v2.0
2006-10-24Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 17 The Great Robot Race The Great Robot Race
2006-10-31Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 18 Pandemic Pandemic
2006-11-07Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 43 :Episode 19 We are the Aliens We are the Aliens
2006-11-14Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
