On November 25th, 1915, Einstein published his greatest work: general relativity. The theory transformed our understanding of nature’s laws and the entire history of the cosmos, reaching back to the ...

(This program is no longer available for online streaming.) Colditz Castle, a notorious prisoner of war camp in Nazi Germany, was supposed to be escape-proof. But in the dark days at the end of World ...

Could a gene that doubles the lifespan of tiny worms help extend human lives, too? In Hawaii, a group of exceptionally healthy elderly men—who just so happen to share a genetic link to those ...

(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 ...

(Programs not available for streaming.) In this two-hour special, NOVA examines how a simple instrument, the telescope, has fundamentally changed our understanding of our place in the universe. What ...

Cosmic rays are inescapable in space. They can rip right through an astronaut, damaging DNA and possibly causing cancer and memory loss over the long-term. But recent research shows that antioxidants, ...

"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 ...

National Corporate funding for NOVA is provided by Carlisle Companies and Viking Cruises. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS ...

(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 ...

Disaster risk management expert Klaus Jacob speaks candidly about the effects of climate change and sea level rise on New York City. He says we need to think ahead to what New York will look like 400 ...

Water buffalo tusks, fish bladders, and animal sinew all went into the making of the ancient Egyptian composite bow. While the materials may seem primitive, this powerful weapon was not so different ...

(This program is no longer available for online streaming.) Almost a century ago, paleontologists found the first tantalizing hints of a monster even bigger than Tyrannosaurus rex, perhaps the largest ...