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Smart cane may help visually impaired navigate more terrain

Watch Video | Listen to the AudioGWEN IFILL: Now an innovation that may help the blind become more independent. It’s a new take on the familiar white cane that the visually impaired have been using for...

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The race for the unbreakable password is almost over

This quantum key/password distribution hardware, called QkarD and engineered at Los Alamos National Laboratory, is theoretically unhackable by outsiders. Photo by Los Alamos National Laboratory What...

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Study finds trauma effects may linger in body chemistry of next generation

Watch Video | Listen to the AudioSTEPHEN FEE: Fifty-nine-year-old Karen Sonneberg grew up on the North Shore of Long Island, just an hour’s drive from New York City. Her parents survived the Holocaust...

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Looking for a way to store data for millennia? Try DNA.

Swiss scientists came up with a technique to use DNA to store information for up to 2,000 years, with the potential for storage up to a million years. Illustration by Philipp Stossel, FML, ETH Zurich...

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The invisible ocean threat that ripples through the food chain

Watch Video | Listen to the AudioGWEN IFILL: While global leaders meet to discuss action on climate change, one new threat has emerged in the world’s oceans. As Scott Shafer from our San Francisco...

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WATCH: 26 years ago, Oliver Sacks wanted to be remembered like this

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Scientists find a fat hormone toggles a runner’s high

Rita Jeptoo of Kenya crosses the finish line to win the 118th Boston Marathon on April 21, 2014 in Boston. Photo by Jim Rogash/Getty Images A long run feels the worst until it feels the best. That’s...

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Can you guess how many trees are on Earth?

Beech forest, Gorbea Natural Park, Spain. Photo by Westend61/Via Getty Images How many trees are on the planet? Go ahead and guess. One for every person or around 7 billion? 100 billion? The best guess...

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How NASA measures the death of a glacier from space

The south end of Bowman lake in Glacier National Park. Photo by Catherine Woods Editor’s note: This story is part of a two-part feature on the basic research of sea level rise My photos from last...

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Did wolves help restore trees to Yellowstone?

Photo by Arthur Middleton/University of Wyoming/Via U.S. Geological Survey Twenty years on from their reintroduction into Yellowstone National Park, wolves are still howling. But does their presence...

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Why humanity is essential to the future of artificial intelligence

Watch Video | Listen to the AudioJUDY WOODRUFF: Now another new addition to the NewsHour Bookshelf. Tonight’s focus is the brave new world of artificial intelligence. Jeffrey Brown has that. JEFFREY...

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Sea turtles deliver record nesting seasons in Southeast U.S.

A loggerhead sea turtle hatchling. This summer’s hatching season has hit new records alongside the Southeast United States coast. Photo by U.S. Fish and Wildlife Service Southeast Region. Sea turtles...

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Can Denmark make energy demand follow renewable supply?

Watch Video | Listen to the AudioJUDY WOODRUFF: The nation of Denmark has been a pioneer in wind energy production. Last year, nearly 40 percent of its electricity came from wind power, and, by 2050,...

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Can Alzheimer’s proteins be spread via medical procedures?

This computer artwork shows the brain’s neural network represented by lines and flashes. A new study indicates Alzheimer’s markers in the brain may have been spread via a protein. Photo by Alfred...

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Rupert Murdoch’s 21st Century Fox buys National Geographic media

James Murdoch, CEO of 21st Century Fox Inc., pauses during a panel session at the Cannes Lions International Festival Of Creativity in Cannes, France, on June 25, 2015. 21st Century Fox and National...

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Cave divers uncover new humanlike species in South Africa

Skeleton of the newly discovered Homo naledi. Courtesy of eLife 2015;4:e09560. Paleontologists have discovered an ancient human relative in South Africa thanks to a tricky cave diving excavation that...

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Dwarf planet Ceres seen in mesmerizing new detail

This image taken by NASA’s Dawn spacecraft, shows Occator crater on Ceres, home to a collection of intriguing bright spots. Image by NASA/JPL-Caltech/UCLA/MPS/DLR/IDA New images of dwarf planet Ceres...

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Trove of fossils from a long-lost human ancestor is greatest find in decades

Watch Video | Listen to the AudioGWEN IFILL: Researchers announced a fossil discovery today that some consider one of the greatest in the last 50 years, and one that could provide an important link in...

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Can failure actually improve innovation?

Innovators rarely travel a straight path to arrive at a new idea. Failure — lots of failure — often paves the way. At least eight out of every 10 new consumer products that enter the market will fail,...

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Researchers reveal new prosthetic hand that senses touch

Photo courtesy of Defense Advanced Research Projects Agency The U.S. military research agency DARPA has given an unnamed 28-year-old paralyzed man the ability to feel people touch his prosthetic hand....

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