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Ice Age Footprints Preview
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
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Dinosaur Apocalypse: The Last Day
Scientists use new fossils to reconstruct the day the dinosaurs died.
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Dinosaur Apocalypse: The New Evidence Preview
Striking new fossils paint a picture of life right before the asteroid impact.
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Particles Unknown Preview
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.
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The Cannabis Question Preview
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.