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NOVA
Secrets in our DNA
Season 48
Episode 1
Some 30 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA. But what happens once the sample is in the hands of testing companies, and how accurate are their results? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.
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53:27
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
53:29
A first-of-its-kind experiment aims to stage a multi-vehicle pileup to gain new data on car safety.
1:36:42
After centuries of pseudoscience, researchers examine the causes of racial health disparities.
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53:41
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
53:39
Explore key military technologies in the American colonies’ fight for freedom.
53:32
Follow the investigation into the deadly container ship collision that closed the Port of Baltimore.
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53:40
Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.
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53:40
A long-lost ancient cemetery opens the door to a unique period in Egyptian history.
53:40
Fossils reveal how birds survived the killer asteroid and became today’s only living dinosaurs.
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53:40
Follow the race to build a world-class airport on the site of one of America’s busiest flying hubs.
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53:43
Can science reveal the secrets of mysterious objects seen in our skies?
53:40
Mysterious bodies are found under one of the world’s most famous cathedrals.