When did Horizon Season 1 Episode 4 air?
Horizon Season 1 Episode 4 aired on July 25, 1964.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Horizon explores the findings of physicists at Brookhaven, Long Island, New York. Who, after two years and thousands of photographs, have identified a predicted new particle which has a unique characteristic: 'strangeness minus three'.
Direct answers for episode-level questions and details.
Horizon Season 1 Episode 4 aired on July 25, 1964.
This episode runs for approximately 60 minutes.
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