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What Gives Hot Peppers Their Heat?
When you eat peppers, the chemical capsaicin fits into the heat pain receptors in your mouth, sending a false signal that’s identical to the one your brain would receive if you ate something literally burning hot.
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What are the weirdest worlds in our solar system, and how did they come to be?
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53:34
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
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Explore big discoveries that have revolutionized our understanding of the universe.
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Follow the quest to recover DNA millions of years old for the very first time.
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Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
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53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
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Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
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53:30
A family turns to science in their struggle to rediscover a history obscured by slavery.
