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Deepfake Videos Are Getting Terrifyingly Real
Deepfakes are an increasingly popular editing technique that uses artificial intelligence to alter faces and voices in videos. Part of the name comes from the AI used to create them, deep learning. Similar technology has been used in Hollywood for years, but with AI getting better and more accessible, today they’re all over the internet.

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53:31
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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53:43
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?

53:43
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

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53:20
How could a single ship cause a major supply chain crisis around the globe?

53:16
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

53:30
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate

53:31
Explore great ancient Maya cities and why their inhabitants abandoned them.