When did Horizon Season 1 Episode 9 air?
Horizon Season 1 Episode 9 aired on December 14, 1964.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon takes a look at science in the spirit of Christmas.
Direct answers for episode-level questions and details.
Horizon Season 1 Episode 9 aired on December 14, 1964.
This episode runs for approximately 60 minutes.
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