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Watch previews, scenes and cast interviews from some of your favorite NOVA programs. If you cannot find what you are looking for, please try our video player.

NOVA Programs

NOVA | Roman Catacomb Mystery

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Watch Sunday, August 7, 2016 at 10am on WMHT-TV | Beneath the streets of Rome lies an ancient city of the dead known as the catacombs — a labyrinth of tunnels, hundreds of miles long — a cemetery for the citizens of ancient Rome.

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NOVA | Inside Einstein's Mind

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Watch Wednesday, November 25, 2015 at 9pm on WMHT TV | Retrace Einstein’s thought experiments to discover how he reshaped our understanding of gravity.

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NOVA | Animal Mummies

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Watch Wednesday, October 28 at 9pm, Encore Sunday, November 1, 2015 at 11am on WMHT TV | Inspect hi-tech images that reveal the strange role animal mummies played in ancient Egyptian beliefs.

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NOVA | CyberWar

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Watch Wednesday, October 14, 2015 at 9pm on WMHT TV | NOVA pulls back the curtain on a top-secret world to examine a chilling new reality of global cyber warfare.

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NOVA | Arctic Ghost Ship

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Unravel the greatest mystery in Arctic exploration: the fate of the Franklin Expedition.

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NOVA | Dawn of Humanity

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Watch Wednesday, September 16, 2015 at 9pm | NOVA and National Geographic present exclusive access to a unique discovery of ancient remains.

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NOVA | Bigger Than T-Rex

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Watch Wednesday, September 2, 2015 at 9pm | Follow the paleontologists who are reconstructing a terrifying carnivore dubbed Spinosaurus.

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NOVA | Vaccines: Calling the Shots

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Watch Wednesday, August 28, 2015 at 9pm | Examine the science behind vaccinations, the return of preventable diseases and the risks of opting out.

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NOVA | The Mystery of Easter Island

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Watch Wednesday, August 5, 2015 at 10pm | See a fresh investigation of Easter Island, a remote speck that has mystified the world for centuries.

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NOVA | Secrets of the Viking Sword

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Watch Wednesday, August 5, 2015 at 9pm | Learn how Viking sword makers designed and built the Ulfberht sword, and uncover its role in history.

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Phylogenetic trees can tell us where medical problems come from, and how to fight them.

PBS Nature News

Episode 2 | Into the Americas

In the second part of The Story of Cats, we discover how cats first crossed from Asia into North America and how they went on to become the top predators of the...

Submit Your Photos of Cats Watching NATURE!

The NATURE mini-series The Story of Cats features cats from around the world, from the lush jungles of Asia to snow swept peaks of the Himalayas to the comfort of our...

NOVA scienceNOW News

Five Reasons to Eat Insects

Save room for bugs! They're the future of green cuisine.