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.

A small, faint star relatively close by is home to seven Earth-size planets with conditions that could be right for liquid water and maybe even life.

The discovery sets a record for both the most Earth-size planets and the most potentially habitable planets ever discovered around a single star.

Last year, global warming reached record high temperatures — and if that news feels like déjà vu, you're not going crazy.

The planet has now had three consecutive years of record-breaking heat.

President-elect Donald Trump intends to nominate Oklahoma Attorney General Scott Pruitt to head the Environmental Protection Agency, announcing his decision in a statement Thursday.

As attorney general, Pruitt has made no secret of his disdain for the EPA.

When a robotic probe finally lands on a watery world like Jupiter's moon Europa, what do scientists have to see to definitively say whether the place has any life?

That's the question retired astronaut John Grunsfeld posed to some colleagues at NASA when he was in charge of the agency's science missions.

A potentially habitable planet about the size of Earth is orbiting the star that is nearest our solar system, according to scientists who describe the find Wednesday in the journal Nature.

Scientists have discovered the fossilized remains of an unusual human-like creature that lived long ago. Exactly how long ago is still a mystery — and that's not the only mystery surrounding this newfound species.

The bones have a strange mix of primitive and modern features, and were found in an even stranger place — an almost inaccessible chamber deep inside a South African cave called Rising Star.

Rip open a little package of baker's yeast from the supermarket, peer inside, and you'll see your distant cousin.

That's because we share a common ancestor with yeast, and a new study in the journal Science suggest that we also share hundreds of genes that haven't really changed in a billion years.

Edward Marcotte, a biologist at the University of Texas at Austin, knew that humans and yeast have thousands of similar genes. But, he wondered, how similar are they?

As space shuttle Atlantis orbits the Earth on NASA's last shuttle mission, it's worth remembering that key parts of this high-tech spaceship were handmade by people back here on Earth.

Five years ago, NPR profiled a few of the workers who make pieces of NASA's shuttles, using everyday tools like sewing needles and X-ACTO knives. With the shuttle program ending, NPR revisited those people to see how their lives are changing now that the shuttles will no longer need them.