Nell Greenfieldboyce Nell Greenfieldboyce is a NPR science correspondent.
Nell Greenfieldboyce 2010
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Nell Greenfieldboyce

Ken Catania of Vanderbilt University lets a small eel zap his arm as he holds a device he designed to measure the strength of the electric current. Ken Catania hide caption

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Ken Catania

It's Like An 'Electric-Fence Sensation,' Says Scientist Who Let An Eel Shock His Arm

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Experiments that showed how to make the H5N1 bird flu virus more contagious raised concern about malicious misuse of laboratory research. Science Photo Library/Getty Images hide caption

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Science Photo Library/Getty Images

A partial solar eclipse (left) is seen from the Cotswolds, United Kingdom, while a total solar eclipse is seen from Longyearbyen, Norway, in March 2015. Tim Graham/Getty Images/Haakon Mosvold Larsen/AFP/Getty Images hide caption

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Tim Graham/Getty Images/Haakon Mosvold Larsen/AFP/Getty Images

Be Smart: A Partial Eclipse Can Fry Your Naked Eyes

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On Nov. 13, 2012, a narrow corridor in the southern hemisphere experienced a total solar eclipse. The corridor lay mostly over the ocean but also cut across the northern tip of Australia where both professional and amateur astronomers gathered to watch. Romeo Durscher/NASA Goddard Space Center/Flickr hide caption

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Romeo Durscher/NASA Goddard Space Center/Flickr

Why Future Earthlings Won't See Total Solar Eclipses

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Retired astrophysicist Fred Espenak (right) and his wife, Patricia, photographed a total solar eclipse from Jinta, China, on Aug. 1, 2008. He has witnessed 27 such events and plans to be in Casper, Wyo., on Aug. 21 — depending on the forecast. Courtesy of Fred Espenak hide caption

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Courtesy of Fred Espenak

Go See It, Eclipse Chasers Urge. 'Your First Time Is Always Special'

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A total solar eclipse is visible through the clouds as seen from Vagar in the Faroe Islands in March 2015. Eric Adams/AP hide caption

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Eric Adams/AP

Scientists Prepare For 'The Most Beautiful Thing You Can See In The Sky'

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Proper eye protection is a must for anyone looking up at a solar eclipse. Eclipse glasses are far darker than regular sunglasses. Joseph Okpako/Getty Images hide caption

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Joseph Okpako/Getty Images

Planning To Watch The Eclipse? Here's What You Need To Protect Your Eyes

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A pump jack at work in 2016, near Firestone, Colo. The American Exploration & Production Council, which represents oil and gas exploration firms, is one of many industry groups supporting the HONEST Act, which was passed by the House and is now with the Senate. David Zalubowski/AP hide caption

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David Zalubowski/AP

GOP Effort To Make Environmental Science 'Transparent' Worries Scientists

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Eyes come in all sizes. These belong to a domestic cat (from left), an owl and an octopus. The Comparative Ocular Pathology Laboratory of Wisconsin has 56,000 specimens in its collection — including 6,000 from more exotic species. From left: Andyworks, Ralf Hettler, vicmicallef/iStockPhoto hide caption

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From left: Andyworks, Ralf Hettler, vicmicallef/iStockPhoto

'One Of A Kind' Collection Of Animal Eyeballs Aids Research On Vision Problems

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The Apollo 11 capsule in in sore need of restoration, conservation specialists say, if it's to last another 50 years. Even the adhesive that helps holds stuff in place is losing its stickiness, and some objects inside are starting to pop off. Shelby Knowles/NPR hide caption

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Shelby Knowles/NPR

Moonwalkers' Apollo 11 Capsule Gets Needed Primping For Its Star Turn On Earth

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A sometimes lethal strain of H7N9 bird flu that has infected about 1,500 people in China doesn't spread easily among humans — yet. But research published Thursday suggests just a few genetic mutations might be enough to make it quite contagious. Pasieka/Science Source hide caption

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Pasieka/Science Source

A Few Genetic Tweaks To Chinese Bird Flu Virus Could Fuel A Human Pandemic

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An artist's conception of the KELT-9 system, which has a host star (left) that's almost twice as hot as our sun. The hot star blasts its nearby planet KELT-9b, leading to a dayside surface temperature of around 7,800 degrees Fahrenheit. NASA/JPL-Caltech/R. Hurt (IPAC) hide caption

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NASA/JPL-Caltech/R. Hurt (IPAC)

Scientists Discover A Scorched Planet With A Comet-Like Tail

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A plasticine caterpillar glistens with moisture while awaiting potential predator attacks in the forest of Tai Po Kau, Hong Kong. Chung Yun Tak/Science hide caption

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Chung Yun Tak/Science

Scientists Glued Fake Caterpillars On Plants Worldwide. Here's What Happened

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