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.

Scientists do experiments with millions of rats and mice each year, to study everything from heart disease to cancer to diabetes. Recently, some new recommendations about how to house female lab rodents and their babies caused an uproar, with experts at major research institutions now saying they're unsure of what they'll have to do to keep their government funding.

The original Christmas presents were gold, frankincense and myrrh. That's what wise men brought to the baby Jesus, according to the Gospel of Matthew. Frankincense is still used today — for perfumes, incense and traditional medicines — but a new study suggests that its future looks grim.

Critics cried foul when Department of Health and Human Services Secretary Kathleen Sebelius overruled the Food and Drug Administration earlier this month, saying that teenage girls can't buy the emergency contraceptive plan B without a prescription. Their complaint: That the move went against the Obama administration's stated goal of protecting science from the taint of politics.

A committee that advises the government says that details of two controversial experiments on bird flu virus should not be made public, because of fears that the work could provide a recipe for a bioweapon.

The government-funded experiments were done by researchers who wanted to understand if bird flu virus might change in the future to cause a pandemic in people. By tweaking genes, they made the deadly bird flu virus more contagious between lab animals.

Updated 1:30 p.m.: The National Institutes of Health accepts the recommendations of the Institute of Medicine report on chimpanzee research, NIH Director Dr. Francis Collins said in a statement. "We will not issue any new awards for research involving chimpanzees until processes for implementing the recommendations are in place," he said.

Physicists have a grand theory that describes how tiny particles interact to form all the stuff we see in the universe — everything from planets to toasters to human beings.

But there is one particle predicted by this theory that has never been detected in experiments. It's called the Higgs boson. Scientists are dying to know if it really exists — and now researchers are closer to finding out than ever before.

Calling someone a "rat" is no compliment, but a new study shows that rats actually are empathetic and will altruistically lend a helping paw to a cage mate who is stuck in a trap.

Not only will rats frantically work to free their trapped cage mate; they will do so even when there's a tempting little pile of chocolate chips nearby, the study reveals. Instead of leaving their pal in the trap and selfishly gobbling the candy all by themselves, rats will free their cage mate and share the chocolate.

Scientists have discovered a planet not too much bigger than Earth that's circling a distant star that's much like our own Sun. What's more, this planet is in the so-called "Goldilocks zone" around that star — a region that's not too hot and not too cold. That's the kind of place that could be home to liquid water and maybe even life.

The planet, known as Kepler-22b, is the first near-Earth-sized planet to be found smack dab in the middle of the habitable zone of a twin to our Sun.

One of the first things President Obama did after he took office was put out a memo that basically said: Don't mess with science.

The March 9, 2009, memorandum stated that "political officials should not suppress or alter scientific or technological findings and conclusions" and said all government agencies should have appropriate rules and procedures to safeguard the scientific process.

Nearly three years later, only a few have finalized new policies — though they're starting to be put to the test.

Scientists and security specialists are in the midst of a fierce debate over recent experiments on a strain of bird flu virus that made it more contagious.

The big question: Should the results be made public?

Critics say doing so could potentially reveal how to make powerful new bioweapons.

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