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Mysteriously beautiful fractals are shaking up the world of mathematics and deepening our...
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Experts in Alaska investigate how dinosaurs managed to thrive in polar regions.

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E.O. Wilson's fascination with little creatures has led him to some very big ideas.
NOVA  ·  Episode 3512

Space Shuttle Disaster


An investigation uncovers the human failures and design flaws behind the 2003 Columbia tragedy.

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