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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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53:21
Can bringing predators—and fear—back into an ecosystem help restore its natural balance?
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53:21
Follow the epic journey of dog domestication and see what science says about dogs’ love.
1:52:46
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
53:30
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.
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53:25
Can new engineering techniques help prevent deadly bridge collapses?
53:15
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.
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53:32
Discover why scientists and entrepreneurs alike have their sights set on the Moon again.
53:22
In the shadow of Vesuvius and Pompeii, a lesser-known volcano puts Naples at risk.
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53:34
New technologies are promising a new renaissance in space travel.
53:23
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.
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53:15
Journey to Kīlauea volcano to investigate the eruptions that shook Hawaiʻi in 2018.