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The Mysterious Illness That Befell Eiffel Tower Construction Workers
In 1887, the men working on the Eiffel Tower reported bleeding, difficulty breathing, and partial paralysis after being in pressurized air chambers. Today, we know this illness as the bends.
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53:40
Archaeologists investigate the dramatic origins of democracy in ancient Greece 2,500 years ago.
53:08
Follow the Artemis mission to bring humanity back to the Moon for the first time since Apollo.
53:25
Surprising evidence at the world’s oldest temple overturns our understanding of human history.
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53:39
New evidence sheds light on the remarkable life—and mysterious collapse—of the ancient jungle city.
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53:31
What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.
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53:41
See how ingenuity and teamwork keep the crew alive and doing science 250 miles above Earth.
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53:40
Astronauts and Mission Control relive terrifying moments during construction of the ISS.
53:28
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
53:21
Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.