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Nova Season 49 Episodes
Season 49 Episode Guide
20 Episodes 2020 - 2022
Episode 1
Arctic Sinkholes
Wed, Feb 2, 2022
Long-frozen permafrost is melting. How does the resulting release of methane affect us now and what will be the future effects?
Episode 2
Secrets in the Scat
Wed, Feb 9, 2022
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.
Episode 3
Great Mammoth Mystery
Wed, Feb 16, 2022
A unique site in southern England preserved rare traces of ancient ice age mammoths and Neanderthals; host David Attenborough.
Episode 4
Augmented
Wed, Feb 23, 202285 mins
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.
Episode 5
Determined: Fighting Alzheimer's
Wed, Apr 6, 2022
Three women enroll in trials at the University of Wisconsin in hopes of finding a cure for Alzheimer's disease.
Episode 6
Dinosaur Apocalypse: The New Evidence
Wed, May 11, 2022
In North Dakota, scientists use new fossils to reconstruct what life might have been like just before an asteroid wiped out the dinosaurs. The site reveals evidence, including the unhatched egg of a pterosaur, a huge flying reptile.
Episode 7
Dinosaur Apocalypse: The Last Day
Wed, May 11, 2022
Sir David Attenborough explores fossils from a North Dakota site that could reveal what happened to the animals here the day an asteroid struck Earth and wiped out the dinosaurs.
Episode 8
Why Ships Crash
Wed, May 18, 202253 mins
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.
Episode 9
Ice Age Footprints
Wed, May 25, 202249 mins
A look at what thousands of prehistoric footprints in New Mexico's White Sands National Park might reveal about the peopling of the Americas.
Episode 10
Ultimate Space Telescope
Wed, Jul 13, 202254 mins
NASA's James Webb Space Telescope, from its conception to completion.
Episode 11
Saving Venice
Wed, Sep 28, 202278 mins
Built 1,600 years ago on a string of islands in a marshy area open to the Adriatic Sea, Venice is confronted with a multitude of scourges. Although in the 15th century extensive work was undertaken to combat the gradual silting up of the lagoon, this also resulted in more frequent flooding. Now a major travel destination, the Italian city welcomes millions of tourists every year, which further increases the risk of flooding: the huge wake of liners and cargo ships dangerously accelerates the erosion of the neighboring salt marshes, while the many motorboats speeding along its waterways damage the walls of the channels.
Episode 12
Ending HIV in America
Wed, Sep 21, 2022
Explores the scientific progress that has been made in the fight against HIV, highlights the activism and commitment of communities that are still hard hit by the virus, and reveals how close we may be to the ending of HIV in America.
Episode 13
Computers v. Crime
Wed, Oct 12, 2022
The hidden biases, privacy risks and design flaws of the artificial intelligence programs relied on by police departments and the courts.
Episode 14
Can Psychedelics Cure?
Wed, Oct 19, 2022
Scientists discover that psychedelics can have positive clinical impacts, helping patients with afflictions ranging from addiction to depression to PTSD.
Episode 15
Ocean Invaders
Wed, Oct 26, 2022
In the Atlantic, the lionfish is an invasive species with no predator to keep it in check. Another invasive species, the Asian giant hornet is featured.
Episode 16
Nazca Desert Mystery
Wed, Nov 2, 202251 mins
Discoveries of long-hidden lines and figures etched into the Peruvian desert offer new clues to the origins and purpose behind the Nazca Lines.
Episode 17
Crypto Decoded
Wed, Nov 9, 2022
Unraveling the social and technological underpinnings of cryptocurrency, from bitcoin to NFTs.
Episode 18
Zero to Infinity
Wed, Nov 16, 2022
Explains where 0 came from & how to work with and think about infinity.
Episode 19
Rebuilding Notre Dame
Wed, Dec 14, 202254 mins
Remarkable relating of the technical aspects and problems of restoring the Notre Dame cathedral to its glory prior to the fire. Includes fascinating revelations about the artistic and technical skill of the original builders.
Episode 101
Predicting My MS
Wed, Feb 23, 202231 mins
The filmmaker looks back on his life, trying to understand why he contracted a rare form of Multiple Sclerosis: Primary Progressive Multiple Sclerosis.