In this sobering but ultimately hopeful documentary, NOVA examines a disturbing increase in the prevalence of eating disorders, particularly anorexia and bulimia. Meet students, ballet dancers, ...

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"The Fabric of the Cosmos," a four-hour series based on the book by renowned physicist and author Brian Greene, takes us to the frontiers of physics to see how scientists are piecing together the most ...

(This video is no longer available for streaming.) Prime numbers—those that can only be divided by themselves and one—bear a mystery. Why do primes tend to pair up? Five and seven, for example, are ...

Can we make a robot that really thinks, learns, and acts like us? Replicating the human brain is a lot tougher than it looks; the promise of walking, talking "androids" is still just a fantasy. But ...

(This program is no longer available for online streaming.) Astronomers are closing in on the proof they've sought for years that one of the most destructive objects in the universe—a supermassive ...

Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth. (This video is no longer available for streaming.) The aurora borealis, or northern ...

(This program is no longer available for online streaming.) The asteroid that exploded over Siberia—injuring more than 1,000 and damaging buildings in six cities—was a shocking reminder that Earth is ...

(This program is no longer available for online streaming.) Follow an expedition to a remote cave in the Judean desert, first excavated by the famed Israeli archeologist Yigael Yadin in 1960-61. Yadin ...

(This video is no longer available for streaming.) Host Neil deGrasse Tyson joins a team of investigators hot on the trail of a mass murderer—one that knocked off its victims 250 million years ago ...

Building vision into computers has been a greater hurdle than AI experts ever thought it would be, and they haven't cleared it yet. Simply recognizing everyday objects like a shoe or a chair—an ...