Nova

- Season 49

(2022)

Long-frozen permafrost is melting. How does the resulting release of methane affect us now and what will be the future effects?

Scott Burnett is "Scatman"- an Australian ecologist on the trail of the secrets of poop. By identifying and analyzing animal scat for DNA and hormones, he discovers essential details of their behavior and how to protect them.

A unique site in southern England preserved rare traces of ancient ice age mammoths and Neanderthals; host David Attenborough.

An inventor of bionic limbs, Hugh Herr, works with an injured climber and a surgeon to test a new amputation technique that allows prosthetic limbs to move and feel like the real thing.

Three women enroll in trials at the University of Wisconsin in hopes of finding a cure for Alzheimer's disease.

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When the Ever Given blocked the Suez Canal, it triggered a global crisis. Using eye-witnesses speaking for the first time, This investigation aims to find out what really happened.

A look at what thousands of prehistoric footprints in New Mexico's White Sands National Park might reveal about the peopling of the Americas.

The filmmaker looks back on his life, trying to understand why he contracted a rare form of Multiple Sclerosis: Primary Progressive Multiple Sclerosis.