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The Hidden Cause of Traffic Jams—and How to Solve Them
Some traffic jams seem to happen out of nowhere—it’s not rush hour, no construction, no accidents. These are called phantom traffic jams, generally caused by drivers tapping the brakes on and off. Could autonomous vehicles eliminate these traffic jams, and make our roads safer? Some researchers think so.
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Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
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Discover how two revolutionary ancient inventions changed the course of humanity forever.
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Follow ancient humans’ journey into an icy and perilous new land.
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Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
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Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
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Trace the remarkable origin story of Homo sapiens and the crucial moments that shaped our species.
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Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
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53:29
A first-of-its-kind experiment aims to stage a multi-vehicle pileup to gain new data on car safety.
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After centuries of pseudoscience, researchers examine the causes of racial health disparities.
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53:41
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
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53:39
Explore key military technologies in the American colonies’ fight for freedom.
53:32
Follow the investigation into the deadly container ship collision that closed the Port of Baltimore.