When did Horizon Season 2 Episode 3 air?
Horizon Season 2 Episode 3 aired on February 3, 1965.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon explores American plans to launch a space observatory to map the universe and learn how stars are created.
Direct answers for episode-level questions and details.
Horizon Season 2 Episode 3 aired on February 3, 1965.
This episode runs for approximately 60 minutes.
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