Extras
What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.
Follow the complex lives of giant elephant bulls in Amboseli and Mount Kilimanjaro.
Male elephants form powerful bonds — and even become adoptive parents together.
In Amboseli, one male’s opportunity attracts rivals — and the attention of watching juveniles.
Esau’s journey spans borders that elephants cannot see — but must obey.
James tends to an aging dog while Jimmy stumbles upon Siegfried and Susan... and a horse.
Minnesota leaders and protesters push for accountability after ICE shooting
News Wrap: Internet and phone service shut off in Iran amid widening protests
Senate moves to restrict Trump from taking further military action against Venezuela
In turnaround from earlier threats, Trump invites Colombia's leader to the White House
Latest Episodes
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NOVA Season 53
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NOVA Season 52
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NOVA Season 51
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NOVA Season 50
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NOVA Season 49
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NOVA Season 48
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NOVA Season 47
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NOVA Season 46
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NOVA Season 45
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NOVA Season 44
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NOVA Season 43
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NOVA Season 42
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NOVA Season 41
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NOVA Season 40
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NOVA Season 39
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NOVA Season 38
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NOVA Season 37
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NOVA Season 36
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NOVA Season 35
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NOVA Season 34
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NOVA Season 33
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NOVA Season 32
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NOVA Season 31
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NOVA Season 30
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NOVA Season 28
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NOVA Season 27
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NOVA Season 23
What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.
See how ingenuity and teamwork keep the crew alive and doing science 250 miles above Earth.
Astronauts and Mission Control relive terrifying moments during construction of the ISS.
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
Discover how two revolutionary ancient inventions changed the course of humanity forever.
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.