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Watch previews, scenes and cast interviews from some of your favorite PBS Science, Nature and Technology programs. If you cannot find what you are looking for, please try our video player. Click on any of the following programs to watch their respective previews.

Nature
NOVA

Science Nature & Tech Programs

NOVA | Australia's First 4 Billion Years

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Watch Wednesdays, July 16 through August 6, 2014 at 9pm | Experience the history of the Land Down Under, the island continent that has it all.

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Sex in the Wild

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Watch Wednesdays, July 16 – August 6, 2014 at 10pm | Examine the reproductive behaviors and biology of elephants, orangutans, kangaroos and dolphins.

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My Wild Affair

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Watch Wednesdays, July 16 – August 6, 2014 at 8pm | Hear extraordinary stories of the bonds between humans and their animal companions.

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Secrets of the Dead | The Mona Lisa Mystery

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Watch Wednesday, July 9, 2014 at 10pm | Analyze an earlier version of Leonardo da Vinci’s Mona Lisa, uncovered in 2012.

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NOVA | Mystery of a Masterpiece

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Watch Wednesday, July 9, 2014 at 9pm | Follow a new breed of experts who approach “art mysteries” as if they were crime scenes.

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Nature | Saving Otter 501

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Watch Wednesday, July 9, 2014 at 8pm | Witness the Monterey Bay Aquarium’s 501st attempt to save a stranded orphan otter.

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Nature | Salmon: Running the Gauntlet

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Watch Wednesday, July 2, 2014 at 8pm | Examine a wildly creative, hopelessly complex and stunningly expensive approach to managing salmon.

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NOVA | Ghosts of Murdered Kings

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Watch Wednesday, July 2, 2014 at 9pm | Hunt for clues to the identity and death circumstances of victims unearthed in Ireland’s bogs.

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Divine Discontent: Charles Proteus Steinmetz

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Watch Sunday, June 29, 2014 at 1:30pm | Charles Proteus Steinmetz was an innovator in electrical engineering, supplying many of the underlying formulas that made widespread electrical transmission possible.

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Time Scanners

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Watch Tuesdays, July 1 – 15, 2014 at 8pm | Using cutting-edge technology, this series reveals physical and forensic history, allowing viewers to reach out and touch the past.

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Can scientists unravel the mysterious phenomena that lurk between Earth and space?

NOVA scienceNOW News

Five Reasons to Eat Insects

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

Profile: Shaundra Daily

This software engineer and dancer found her groove teaching children about their emotional lives.

Nature follows one of the most fearless animals in the world: the honey badger.

PBS Nature News

Penguins: Spy in the Huddle: Baby Emperor Penguin Emerges from Shell [Video]

Please view the original post to see the video. An emperor dad stands watch as a penguin hatchling pecks its way free. For the past two months, the father has done nothing but care for the egg,

Penguins: Spy in the Huddle: Rockhopper Penguins Make Landfall [Video]

Please view the original post to see the video. Rockhopper penguins brave crashing waves to reach their breeding grounds in the Falkland Islands. They appear at the same time each year, traveling ...