When did Horizon Season 7 Episode 15 air?
Horizon Season 7 Episode 15 aired on April 27, 1970.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
This report by Horizon looks into meteorological research in Britain and America.
Direct answers for episode-level questions and details.
Horizon Season 7 Episode 15 aired on April 27, 1970.
This episode runs for approximately 60 minutes.
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