When did Overview Season 1 Episode 20 air?
Overview Season 1 Episode 20 aired on October 20, 2021.


Combining aerial cinematography with science storytelling to reveal both the natural phenomena and human forces shaping our planet. The series features stories about agriculture, engineering, the environment and natural wonders told by the scientists, rangers, farmers and artists who are responsible for innovating the world around us.
Come on an epic journey as our host Joe Hanson explores the mysterious physics of sand. Along the way, we meet Dr. Melany Hunt and Dr. Nathalie Vriend who solved the long-standing mystery of how dunes sing.
Direct answers for episode-level questions and details.
Overview Season 1 Episode 20 aired on October 20, 2021.
This episode runs for approximately 8 minutes.
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