
Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic
Clip: Season 49 | 4m 3sVideo has Closed Captions
Researchers drilled in the Kap København formation in Greenland to collect soil samples.
Scientists have retrieved the oldest DNA ever, which points to an ecosystem unlike anything on Earth today.
Problems with Closed Captions? Closed Captioning Feedback
Problems with Closed Captions? Closed Captioning Feedback
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic
Clip: Season 49 | 4m 3sVideo has Closed Captions
Scientists have retrieved the oldest DNA ever, which points to an ecosystem unlike anything on Earth today.
Problems with Closed Captions? Closed Captioning Feedback
How to Watch NOVA
NOVA is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
Buy Now

NOVA Labs
NOVA Labs is a free digital platform that engages teens and lifelong learners in games and interactives that foster authentic scientific exploration. Participants take part in real-world investigations by visualizing, analyzing, and playing with the same data that scientists use.Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipThis Teen Calculates Mind-Boggling Math in Her Head
Video has Closed Captions
Apoorva Panidapu earned the moniker “the human calculator” for her math skills. (3m 10s)
Scientists Make Breakthrough in Nuclear Fusion
Video has Closed Captions
The advancement could help pave the way for new energy sources. (1m 53s)
Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic
Video has Closed Captions
Researchers drilled in the Kap København formation in Greenland to collect soil samples. (4m 3s)
Why Experts Say Permanent Daylight Saving Time is Unhealthy
Video has Closed Captions
Early morning sunlight is the key to setting our internal clocks. (4m 30s)
Why NASA is Going Back to the Moon
Video has Closed Captions
NASA’s Artemis I is a big step toward sending humans back to the moon. (4m 53s)
Watch the DART Spacecraft Smash into an Asteroid
Video has Closed Captions
Could we deflect an asteroid barreling toward Earth? DART offers a first test. (51s)
How Storm Surges Work—and Why They’re So Deadly
Video has Closed Captions
The deadliest part of a hurricane isn’t the wind–it’s water. (4m 49s)
Sharks Are Showing Up Earlier—and Staying Longer
Video has Closed Captions
Tiger sharks are showing up off the coast of New England earlier. What’s going on? (4m 18s)
How Seaweed May Help Revive Our Oceans
Video has Closed Captions
Kelp’s ability to capture carbon from the ocean could help save marine ecosystems. (4m 39s)
The Hidden Cause of Traffic Jams—and How to Solve Them
Video has Closed Captions
Self-driving vehicles might be the solution for phantom traffic jams. (6m 5s)
The False Promise of Cloning Your Pet
Video has Closed Captions
Cloning has come a long way since Dolly the sheep, but it still has limits. (6m 37s)
This Device Smells Diseases by Imitating a Dog's Nose
Video has Closed Captions
Researchers at MIT create an electronic nose using chemical odor sensors. (4m 43s)
War Threatens Ukrainian Nuclear Power Plants
Video has Closed Captions
Ukraine's 15 active nuclear reactors generate about half of the country's electricity. (7m 9s)
Animal-to-Human Organ Transplants
Video has Closed Captions
In a first, a 57-year-old man received a heart transplant from a genetically modified pig. (4m 59s)
What is 5G, and is it Safe to Use on Planes?
Video has Closed Captions
The 5G signal works in a fundamentally different way from 4G. (5m 39s)
Introducing NOVA's Financial Lab
Video has Closed Captions
Practice making financial decisions by taking care of your pet through three mini-games. (1m 22s)
Can South Carolina's Salt Marshes Be Saved?
Video has Closed Captions
Many seafood dishes depend on an ecosystem that's easy to overlook: The salt marsh. (8m 27s)
From Prison to Careers in STEM
Video has Closed Captions
Watch how four accomplished scientists began their careers or education in prison. (8m 12s)
Could Antiviral Pills Change the Course of the Pandemic?
Video has Closed Captions
The FDA authorized use of the first antiviral pills to treat COVID-19 at home. (8m 12s)
Video has Closed Captions
Discover how the concepts of zero and infinity revolutionized mathematics. (28s)
Thought Experiment: The Infinite Hilbert's Hotel
Video has Closed Captions
At the Hilbert’s Hotel, there’s always room for one more. (4m 9s)
The Area of a Circle, Explained with Pizza
Video has Closed Captions
Finding the area of a circle is easy with pizza and infinity. (4m 23s)
Video has Closed Captions
An artist and a tech entrepreneur invented the non-fungible token, or NFT, in 24 hours. (3m 30s)
The History of Crypto Goes Further Back Than You Think
Video has Closed Captions
Computer scientists and digital rebels built the revolutionary crypto system. (10m 2s)
Video has Closed Captions
What exactly is crypto, and how does it work? This technology is more than just money. (30s)
Who Carved These Mysterious Lines in the Desert?
Video has Closed Captions
Learn more about the ancient Nazca people and their ancestors, the Paracas. (6m 57s)
Video has Closed Captions
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas. (27s)
Artificial Intelligence Reveals Ancient Desert Drawings
Video has Closed Captions
Can AI help archaeologists uncover more Nazca geoglyphs? (4m 25s)
Video has Closed Captions
Meet one of the ocean’s most beautiful and destructive species: Lionfish. (28s)
Divers Hunt Venomous Fish Invading Our Oceans
Video has Closed Captions
Divers help turn the lionfish’s Atlantic invasion into a commercial opportunity. (3m)
Cats Might Be One of the Most Invasive Species
Video has Closed Captions
Cats are responsible for hundreds of millions, if not billions of birds being eaten every (2m 12s)
Psychedelics as Medicine: The History of Peyote
Video has Closed Captions
Indigenous communities use this small psychedelic cactus as a medicinal herb. (4m 2s)
How Psychedelics Change the Brain
Video has Closed Captions
Scientists found that psychedelic drugs may change how brain regions talk to each other. (4m 11s)
Can Psychedelics Cure? Preview
Video has Closed Captions
Psychedelics are unlocking new ways to treat conditions like addiction and depression. (30s)
How Police Use Algorithms to Predict Crime
Video has Closed Captions
Police are using artificial intelligence to predict crime. (5m 25s)
How Scientists Developed a Drug to Prevent HIV
Video has Closed Captions
The development of PrEP was a breakthrough in HIV prevention. (3m 5s)
How Computer Algorithms Make Predictions
Video has Closed Captions
Can we rely on them to be fair? (2m 30s)
Video has Closed Captions
Is artificial intelligence making policing and courts fairer, or is it increasing bias? (30s)
Saving Notre Dame’s Iconic Stone Vaulting
Video has Closed Captions
Geologists attempt to restore limestone at Notre Dame Cathedral after a fire. (2m 53s)
Restoring Notre Dame's Iconic Stained Glass
Video has Closed Captions
Glass experts uncover the South Rose window’s hidden past. (3m)
Video has Closed Captions
A team tackles the restoration of iconic Notre Dame Cathedral. (30s)
This Flood Barrier Could Save Venice
Video has Closed Captions
Venice is sinking. Could flood barriers be the answer? (2m 57s)
Video has Closed Captions
Can innovative engineering projects save Venice? (30s)
How Venice Was Built On a Swamp
Video has Closed Captions
Ever wonder how Venice was built? Here’s how. (2m 54s)
Video has Closed Captions
Can innovative drugs and therapies finally end HIV? (30s)
Video has Closed Captions
The farther away a galaxy is, the redder it appears to our telescopes. (3m 40s)
Ultimate Space Telescope Preview
Video has Closed Captions
Discover how NASA engineers built and launched the most ambitious telescope of all time. (28s)
NASA Reacts to the James Webb Space Telescope Images
Video has Closed Captions
This NASA team was the first to see the new James Webb Space Telescope images. (1m 55s)
How Scientists Created JWST's First Test Image
Video has Closed Captions
A test image from the James Webb Space Telescope unexpectedly captured many galaxies. (4m 50s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipNational Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.