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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Shots - Health News
11:23 am
Wed April 2, 2014

Ethicists Tell NASA How To Weigh Hazards Of Space Travel

Japan Aerospace Exploration Agency astronaut Aki Hoshide makes a space walk outside the International Space Station in 2012.
NASA Getty Images

Originally published on Thu April 3, 2014 7:55 am

NASA is hoping to soon venture out farther into space than ever before. But these long journeys mean astronauts could face greater risks to their physical and mental health than the space agency currently allows.

Now, an independent group of experts convened by the Institute of Medicine, the health arm of the National Academy of Sciences, has weighed in on how NASA should make decisions about the kinds of risks that are acceptable for missions that venture outside low Earth orbit or extend beyond 30 days.

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The Two-Way
3:01 pm
Wed March 26, 2014

New Dwarf Planet Found At The Solar System's Outer Limits

This diagram for the outer solar system shows the orbits of Sedna (in orange) and 2012 VP113 (in red). The sun and terrestrial planets are at the center, surrounded by the orbits (in purple) of the four giant planets — Jupiter, Saturn, Uranus and Neptune. The Kuiper belt, which includes Pluto, is shown by the dotted light blue region.
Scott S. Sheppard Carnegie Institution for Science

Originally published on Thu March 27, 2014 8:44 am

Scientists have spotted a new dwarf planet at the edge of our solar system. It's a kind of pink ice ball that's way out there, far beyond Pluto.

Astronomers used to think this region of space was a no man's land. But the new findings suggest that it holds many small worlds — and there are even hints of an unseen planet bigger than Earth.

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Space
4:44 am
Tue March 18, 2014

Space Thief Or Hero? One Man's Quest To Reawaken An Old Friend

Early days: NASA's International Sun-Earth Explorer C (also known as ISEE-3 and ICE) was undergoing testing and evaluation inside the Goddard Space Flight Center's dynamic test chamber when this photo was snapped in 1976.
NASA

Originally published on Tue March 18, 2014 7:56 pm

More than 30 years ago, Robert Farquhar stole a spacecraft.

Now he's trying to give it back.

The green satellite, covered with solar panels, is hurtling back toward the general vicinity of Earth, after nearly three decades of traveling in a large, looping orbit around the sun.

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Science
3:27 am
Mon February 24, 2014

At 4.4 Billion Years Old, Oz Crystals Confirmed As World's Oldest

The colors of the zircon crystals range from transparent to deep red.
Courtesy of University of Wisconsin

Originally published on Mon February 24, 2014 2:06 pm

Scientists have used a powerful new technique to prove that some tiny crystals found in Western Australia are indeed the oldest known materials formed on Earth.

Back in 2001, scientists reported that one of the zircon crystals was about 4.4 billion years old — so old that not everyone believed it.

"There have been challenges, because nothing in science goes without being questioned. It always has to be proven," says John Valley, a geochemist at the University of Wisconsin, Madison.

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The Two-Way
4:04 pm
Wed February 19, 2014

If Yellowstone Could Talk, It Might Squeak. Blame The Helium

Sunset on the Firehole River, Yellowstone National Park.
Bill Young Flickr

Originally published on Wed February 19, 2014 8:02 pm

A huge amount of ancient helium is rising up from the rocks beneath Yellowstone National Park — about enough to fill up a Goodyear blimp every week.

The gas comes from a vast store of helium that's accumulated in the Earth's crust for hundreds of millions of years, scientists report in the journal Nature this week.

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