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Pluto and Beyond Preview
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The New Horizons spacecraft zooms toward an object 4 billion miles from Earth.
Can We Build a Brain? Preview
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How does today’s artificial intelligence actually work—and is it truly intelligent?
Are We Alone? Preview
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Hunt for clues in the universes to answer one of humanity’s biggest questions.
Volcano on the Brink Preview
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Explore Africa’s sleeping giant—Nyamuragira, one of the world’s most dangerous volcanoes.
Flying Supersonic Preview
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Discover the feats of engineering that made the Concorde the first supersonic airliner.
Transplanting Hope Preview
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Witness organ transplants as they unfold, and meet patients awaiting lifesaving donations.
First Face of America Preview
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Discover remains of a 13,000 year-old teenager in an underwater cave in Mexico.
Bird Brain Preview
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Watch as birds solve puzzles and challenge our basic notions of intelligence.
The Impossible Flight Preview
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For the first time, two intrepid pilots fly a solar-powered airplane around the world.
Killer Floods Preview
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Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.
Secrets of the Forbidden City Preview
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How has China’s magnificent Forbidden City withstood centuries of earthquakes?
Ghosts of Stonehenge Preview
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A decade of archaeological research uncovers provocative new clues about Stonehenge.
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