With huge temperature swings and not a drop of rain, what could Mars weather have in common with the weather on Earth? In this video short, planetary scientist Vicky Hipkin reveals similarities—and, ...

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(This video is no longer available for streaming.) Some people avoid meat because it involves killing animals. Other people love meat; they can't get enough. Here is a development that might make both ...

While other reporters were embedded in fighting units during the Iraq War, NOVA was covering the emergency medical response, living night and day with the doctors, nurses, and medics in a frontline ...

(Program not available for streaming.) Dated to the late Stone Age, Stonehenge may be the best-known and most mysterious relic of prehistory. Every year, a million visitors are drawn to England to ...

(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 ...

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, ...

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 ...

"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 ...

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 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 ...