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The life of our solar system told in five dramatic stories spanning billions of years.
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The rocky planets have similar origins, but only 1 supports life. Was it always this way?
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Could it be that body fat has more to do with biological processes than personal choices?
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Could it be that body fat has more to do with biological processes than personal choices?
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Discover the feats of engineering that made the Concorde the first supersonic airliner.
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Climb into the crater of Nyiragongo, a seething and active African volcano.
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How courage and ingenuity saved Allied troops during the epic Dunkirk operation in 1940.
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Discover remains of a 13,000 year-old teenager in an underwater cave in Mexico.
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Discover why some predictions succeed and others fail as experts forecast the future.
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Witness organ transplants as they unfold, and meet patients awaiting lifesaving donations.
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For the first time, two intrepid pilots fly a solar-powered airplane around the world.
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Watch as birds solve puzzles and challenge our basic notions of intelligence.
