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Watch as birds solve puzzles and challenge our basic notions of intelligence.

Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.

A decade of archaeological research uncovers provocative new clues about Stonehenge.

Discover the world of medieval knights and see how their armor was made.

The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.

Join pioneering shipbuilders as they embark on a feat of maritime engineering.

Explore the hidden world of energy storage and how it holds the keys to a greener future.

Explore the forces behind deadly landslides—and the danger zones for the next big one.

Explore the buried clay warriors, chariots, and bronze weapons of China’s first emperor.

How did fighter planes evolve from rickety biplanes to deadly machines during WWI?

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