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NOVA
NOVA Universe Revealed: Alien Worlds
Season 48
Episode 17
Ultra-sensitive telescopes have transformed alien planet-hunting from science fiction into enthralling hard fact. Join NOVA on a visit to exotic worlds orbiting distant suns to answer an age-old question with thrilling new science: are we alone?
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53:38
Explore mammals’ surprising origins, long before the age of dinosaurs.
53:39
Do speech buttons really allow dogs to talk to us? Scientists investigate.
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.
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53:32
Discover how two revolutionary ancient inventions changed the course of humanity forever.
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53:25
Follow ancient humans’ journey into an icy and perilous new land.
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53:27
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
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53:25
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.