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NOVA
Arctic Sinkholes
Season 49
Episode 1
Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas.
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Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
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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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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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Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
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Explore key military technologies in the American colonies’ fight for freedom.
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Follow the investigation into the deadly container ship collision that closed the Port of Baltimore.
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Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.
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A long-lost ancient cemetery opens the door to a unique period in Egyptian history.
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Fossils reveal how birds survived the killer asteroid and became today’s only living dinosaurs.