When did Horizon Season 34 Episode 10 air?
Horizon Season 34 Episode 10 aired on September 11, 1997.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon investigates the theory that a comet impact in the Gulf of Mexico was responsible for the mass extinction of the dinosaurs.
Direct answers for episode-level questions and details.
Horizon Season 34 Episode 10 aired on September 11, 1997.
This episode runs for approximately 60 minutes.
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