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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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Discover how the concepts of zero and infinity revolutionized mathematics.
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What exactly is crypto, and how does it work? This technology is more than just money.
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Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.
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53:32
Meet one of the ocean’s most beautiful and destructive species: Lionfish.
53:47
Psychedelics are unlocking new ways to treat conditions like addiction and depression.
53:30
Is artificial intelligence making policing and courts fairer, or is it increasing bias?
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A team tackles the restoration of iconic Notre Dame Cathedral.
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53:31
Can innovative engineering projects save Venice?
53:33
Can innovative drugs and therapies finally end HIV?
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Discover how NASA engineers built and launched the most ambitious telescope of all time.
53:21
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
53:20
How could a single ship cause a major supply chain crisis around the globe?