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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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Space
2:01 am
Tue November 8, 2011

The Plutonium Problem: Who Pays For Space Fuel?

NASA's next Mars rover, Curiosity, seen in this artist's rendering, will use 8 pounds of plutonium-238 as its power supply. That's a significant portion of the remaining space fuel. NASA and the Department of Energy have offered to split the costs of producing the fuel, but Congress has so far opposed that arrangement.
NASA

When NASA's next Mars rover blasts off later this month, the car-sized robot will carry with it nearly eight pounds of a special kind of plutonium fuel that's in short supply.

NASA has relied on that fuel, called plutonium-238, to power robotic missions for five decades.

But with supplies running low, scientists who want the government to make more are finding that it sometimes seems easier to chart a course across the solar system than to navigate the budget process inside Washington, D.C.

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Space
7:00 am
Sat November 5, 2011

Fake Mission Accomplished For Mars500

Transcript

SCOTT SIMON, host: Six men in Moscow are readjusting to life on Earth today after enduring a long simulated mission to Mars. They spent 520 days locked inside a fake spaceship. The hatch was opened yesterday.

NPR's Nell Greenfieldboyce reports that this pretend trip involved real psychological challenges that may still persist.

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Animals
2:51 pm
Thu October 20, 2011

What Slew An Ancient Mastodon? DNA Tells Tale

A museum employee stands beneath a mastodon skeleton on display at the U.S. National Museum, now the Smithsonian National Museum of Natural History, circa 1917. A new study revisits an old debate about the evidence for an early mastodon hunt in North America.

Smithsonian Institution Archives

Originally published on Fri October 21, 2011 8:14 pm

More than 13,000 years ago, hairy elephant-like creatures with giant tusks roamed North America. These mastodons were hunted by some of the earliest people to live here, and scientists recently learned a bit more about those mysterious cultures by taking a new look at an old mastodon bone.

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Environment
5:01 pm
Fri October 14, 2011

Polar Bear Researcher To Be Re-Interviewed By Feds

A researcher who wrote a famous report about dead polar bears is being re-interviewed by federal investigators, who are continuing to probe allegations of misconduct. Above, a polar bear walks on the frozen tundra on the edge of Hudson Bay.

Paul J. Richards AFP/Getty Images

Federal officials continue to probe allegations of misconduct related to a famous report on dead polar bears that raised concerns about climate change. Later this month, officials plan to re-interview one of the two government scientists who wrote that report.

The new development suggests that scientific integrity remains a focus of the investigation, which recently detoured into allegations that the other researcher under scrutiny broke rules related to federal funding of research. Both scientists work for agencies of the Department of the Interior (DOI).

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Animals
9:03 am
Thu October 13, 2011

Naked Mole Rat's Genetic Code Laid Bare

Naked mole rats are becoming more popular in research laboratories, The rodents have surprised scientists with their ability to live up to 30 years and their potential to offer insights into human health.

Eric Gay AP

Originally published on Fri October 14, 2011 6:15 am

Lists of the world's ugliest animals sometimes include the naked mole rat. But scientists who have just analyzed its entire genetic code say this bizarre little creature has an inner beauty — unique traits that could aid research on cancer and aging.

Naked mole rats are neither moles nor rats, although they are naked. They have tiny eyes and piggy noses and have been described as looking like sausages with teeth.

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Shots - Health Blog
1:43 pm
Wed October 12, 2011

Decoded DNA Reveals Details Of Black Death Germ

Victims of the plague are consigned to a communal burial during the Plague of London in 1665.

Universal Images Group Getty Images

Scientists have used DNA lurking inside the teeth of medieval Black Death victims to figure out the entire genetic code of the deadly bacterium that swept across Europe more than 600 years ago, killing an estimated half of the population.

The researchers didn't find any genetic feature that could explain why the plague was so virulent, according to a report just published in the journal Nature.

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Space
3:03 am
Fri September 30, 2011

Asteroids Pose Less Risk To Earth Than Thought

This picture of the Eros asteroid is the first of an asteroid taken from an orbiting spacecraft. The crater at the center is about 4 miles across.
JPL/JHUAPL NASA

Originally published on Fri September 30, 2011 11:05 am

Our planet's risk of being hit by a dangerous outer space rock may be smaller than scientists previously thought. That's according to a survey of the sky that NASA is calling the most accurate census yet of near-Earth asteroids.

A NASA space telescope called the Wide-field Infrared Survey Explorer, or WISE, recently went searching for asteroids lurking nearby — and found far fewer than astronomers had expected.

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Space
11:01 pm
Tue September 20, 2011

Where Falling Satellite Lands Is Anyone's Guess

This artist's conceptual image shows the Upper Atmosphere Research Satellite, or UARS. After two decades in orbit, the satellite will make an uncontrolled re-entry into the Earth's atmosphere.
NASA

Later this week, a retired NASA satellite the size of a school bus will finally fall back towards Earth after orbiting the planet for two decades. Most of it will burn up in the atmosphere. But about two dozen pieces are expected to hit the ground — somewhere.

And the biggest piece will weigh about 300 pounds.

If that's got you worried, NASA emphasizes that in the history of the space age, there have been no confirmed reports of falling space junk hurting anyone. But that doesn't mean no one has ever been hit.

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