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Earth’s History Is Hidden in These Strange Maps

Season 2 Episode 2 | 10m 14s

The Channeled Scablands of the Pacific Northwest hide an astonishing secret. Evidence of a massive flood that shaped the entire region lies just beneath its landscape. But it can only be seen with cutting edge LIDAR technology. Join Joe as he learns how scientists are using lasers to reveal details that may help us predict the paths of potential megafloods of the future.

Aired: 07/17/24
Extras
Grantchester Season 10 premieres Sunday, June 15, 9/8c on MASTERPIECE on PBS.
On the plains of South Africa, an army of dung beetles recycle the dung of large mammals.
Ummat Somjee goes to Thailand to observe the cultural tradition of fighting beetles.
An intimate portrayal of three families confronting the unique challenges of Alzheimer’s.
Gavin Svenson heads to the Brazilian rainforest to sample the diversity of mantises.
Dragonfly expert Jessica Ware heads to Guyuna to sample dragonfly diversity.
Nancy’s wedding plans take a surprising turn. Sister Catherine takes her First Vows.
David Henry Hwang (Daniel Dae Kim) brings Marcus G. (Ryan Eggold) to a talkback.
David Henry Hwang (Daniel Dae Kim) shares a phone call with his father.
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
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