(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 ...

(This video is no longer available for online streaming.) For 25 centuries the Parthenon has been shot at, set on fire, rocked by earthquakes, looted for its sculptures, almost destroyed by explosion, ...

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 ...

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If you ever thought the periodic table was a boring collection of elements that has nothing to do with your life, this app will show you otherwise. "NOVA Elements" lets you explore an interactive ...

(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 ...

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 ...

Explore the intimate connections between the landscape, the colonizing of the continent, and the emergence of our industrial world. Beginning with Native American ancestors who crafted hunting weapons ...

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 ...