Nell Greenfieldboyce

Nell Greenfieldboyce is a NPR science correspondent.

With reporting focused on general science, NASA, and the intersection between technology and society, Greenfieldboyce has been on the science desk's technology beat since she joined NPR in 2005.

In that time Greenfieldboyce has reported on topics including the narwhals in Greenland, the ending of the space shuttle program, and the reasons why independent truckers don't want electronic tracking in their cabs.

Much of Greenfieldboyce's reporting reflects an interest in discovering how applied science and technology connects with people and culture. She has worked on stories spanning issues such as pet cloning, gene therapy, ballistics, and federal regulation of new technology.

Prior to NPR, Greenfieldboyce spent a decade working in print, mostly magazines including U.S. News & World Report and New Scientist.

A graduate of Johns Hopkins, earning her Bachelor's of Arts degree in social sciences and a Master's of Arts degree in science writing, Greenfieldboyce taught science writing for four years at the university. She was honored for her talents with the Evert Clark/Seth Payne Award for Young Science Journalists.

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Science
3:33 am
Mon January 27, 2014

Grand Canyon May Be Older (And Younger) Than You Think

The eastern Grand Canyon was about half-carved (to the level of the red cliffs above the hiker) from 15 million to 25 million years ago, an analysis published Sunday suggests. But the inner gorge was likely scooped out by the Colorado River in just the past 6 million years.
Laura Crossey University of New Mexico

Originally published on Mon January 27, 2014 11:31 am

In recent years geologists have hotly debated the age of the Grand Canyon. Some think it's young (just 6 million years old), while others argue that it dates back 70 million years — to the days of dinosaurs.

Now one group says the Grand Canyon is neither young nor old. Instead, these geologists say, it's both.

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Science
3:38 am
Thu January 9, 2014

There She Blew! Volcanic Evidence Of The World's First Map

A reproduction of the mural from a room in Catalhoyuk, a Neolithic settlement in Turkey.
Sarah Murray Flickr

Originally published on Fri January 10, 2014 10:21 am

A new study of volcanic rocks suggests that an ancient mural may indeed depict an erupting volcano, adding new weight to a theory that this image is a contender for the world's oldest known landscape painting or map.

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Space
3:26 am
Tue December 31, 2013

Bon Voyage, Voyager: Old Friends Take Stock

NASA/JPL-Caltech

Originally published on Tue December 31, 2013 9:37 am

For the scientists who have emotionally traveled with NASA's Voyager mission for decades, 2013 will be remembered as the year they knew Voyager 1 had finally become the first explorer from Earth to enter the mysterious realm of interstellar space.

Voyager 1 and its twin, Voyager 2, both blasted off in 1977, more than 35 years ago. Voyager 1 flew by Jupiter, then Saturn — and then on toward the unknown region that lies between stars.

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Shots - Health News
4:20 am
Mon December 23, 2013

Screening Newborns For Disease Can Leave Families In Limbo

Vera Wojtesta was one of 300 babies flagged by New York's newborn screening program as at risk of having life-threatening Krabbe disease.
Ben Shutts Courtesy of the Wojtesta family

Originally published on Tue December 24, 2013 4:24 pm

For Matthew and Brianne Wojtesta, it all started about a week after the birth of their daughter Vera. Matthew was picking up his son from kindergarten when he got a phone call.

It was their pediatrician, with some shocking news. Vera had been flagged by New York's newborn screening program as possibly having a potentially deadly disease, and would need to go see a neurologist the next day.

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Science
12:03 am
Wed December 4, 2013

Polar Bear Researcher Gets $100,000 In Settlement With Feds

Threatened Arctic polar bears have become controversial icons of climate change.
Gerald Hoberman Getty Images

Originally published on Wed December 4, 2013 2:19 pm

A scientist whose observations of drowned polar bears raised alarms about climate change has received $100,000 to settle a whistle-blower complaint against an agency of the Department of the Interior.

Under the settlement, wildlife researcher Charles Monnett retired from his job at the federal Bureau of Ocean Energy Management on Nov. 15, and the agency agreed to remove a letter of reprimand that officials had placed in his file.

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Shots - Health News
2:44 pm
Thu November 14, 2013

Bacterial Competition In Lab Shows Evolution Never Stops

The plate on the left contains about equal numbers of colonies of two different bacteria. After the bacteria compete and evolve, the lighter ones have taken the lead in the plate on the right.
Courtesy of Michael Wiser

Originally published on Fri November 15, 2013 10:49 am

Evolution is relentless process that seems to keep going and going, even when creatures live in a stable, unchanging world.

That's the latest surprise from a unique experiment that's been underway for more than a quarter-century.

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Animals
2:35 pm
Thu November 14, 2013

Old Dogs, New Data: Canines May Have Been Domesticated In Europe

A dog burial in Greene County, Ill. This fossil dates back to about 8,500 years ago.
Courtesy of Del Baston, Center for American Archaeology

Originally published on Thu November 14, 2013 8:34 pm

Scientists have used some new tricks and old dogs to show that thousands of years ago, wolves may have first become man's best friend in Europe.

Researchers extracted DNA from ancient wolf or dog fossils and compared it with DNA from modern dog breeds and wolves. Until recently, labs didn't have the kind of genetic tools they'd need to work with such old dog DNA and do this kind of detailed comparison.

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Space
3:01 am
Tue November 5, 2013

Galaxy Quest: Just How Many Earth-Like Planets Are Out There?

This is an artist's illustration of Kepler-62f, a planet in the "habitable zone" of a star that is slightly smaller and cooler than ours. Kepler-62f is roughly 40 percent larger than Earth.
NASA/JPL-Caltech/T. Pyle

Originally published on Tue November 5, 2013 11:36 am

A team of planet hunters estimates that about 22 percent of the sun-like stars in our galaxy may have planets about the size of Earth that are bathed in similar amounts of sunlight — and potentially habitable.

That's the conclusion of a new analysis of observations taken by NASA's Kepler Space Telescope, which was launched in 2009 to hunt for potentially habitable Earth-like planets around other stars.

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Animals
3:19 am
Fri November 1, 2013

The Tail's The Tell: Dog Wags Can Mean Friend Or Foe

Friend Or Foe? Scientists say dogs react differently to the direction of another dog's tail wag.
Time & Life Pictures/Getty Images

Originally published on Fri November 1, 2013 11:41 am

Dogs can pick up emotional cues from another dog by watching the direction of its wagging tail, a new study suggests.

In a series of lab experiments, dogs got anxious when they saw an image of a dog wagging its tail to its left side. But when they saw a dog wagging its tail to its right side, they stayed relaxed.

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Shots - Health News
5:52 pm
Wed October 9, 2013

Why Scientists Held Back Details On A Unique Botulinum Toxin

The botulism toxin comes from Clostridium botulinum bacteria, seen here in a colorized micrograph.
James Cavallini Science Source

Originally published on Tue March 18, 2014 3:51 pm

Scientists have discovered the first new form of botulinum toxin in over 40 years, but they're taking the unusual step of keeping key details about it secret.

That's because botulinum toxin is one of the most poisonous substances known. It causes botulism, and the newly identified form of it can't be neutralized by any available treatment.

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