When did Horizon Season 9 Episode 26 air?
Horizon Season 9 Episode 26 aired on November 2, 1972.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon reports that High Energy Physics shows a pattern of thought that challenges the very roots of commonplace belief.
Direct answers for episode-level questions and details.
Horizon Season 9 Episode 26 aired on November 2, 1972.
This episode runs for approximately 60 minutes.
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