Joe Palca

Joe Palca is a science correspondent for NPR. Since joining NPR in 1992, Palca has covered a range of science topics — everything from biomedical research to astronomy. In addition to his science reporting, Palca occasionally fills in as guest host on Talk of the Nation Science Friday.

Palca began his journalism career in television in 1982, working as a health producer for the CBS affiliate in Washington, DC. In 1986, he left television for a seven-year stint as a print journalist, first as the Washington news editor for Nature, and then as a senior correspondent for Science Magazine.

In October 2009, Palca took a six-month leave from NPR to become science writer in residence at the Huntington Library and The Huntington Library, Art Collections, and Botanical Gardens.

Palca has won numerous awards, including the National Academies Communications Award, the Science-in-Society Award of the National Association of Science Writers, the American Chemical Society James T. Grady-James H. Stack Award for Interpreting Chemistry for the Public, the American Association for the Advancement of Science Journalism Prize, and the Victor Cohn Prize for Excellence in Medical Writing.

With Flora Lichtman, Palca is the co-author of Annoying: The Science of What Bugs Us (Wiley, 2011).

He comes to journalism from a science background, having received a Ph.D. in psychology from the University of California at Santa Cruz where he worked on human sleep physiology.

Palca lives in Washington, D.C, with his wife and two sons.

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Science
6:50 pm
Thu March 6, 2014

The Scientist Who Makes Stars On Earth

Transcript

AUDIE CORNISH, HOST:

From NPR News, this is ALL THINGS CONSIDERED. I'm Audie Cornish.

On the outskirts of Albuquerque, New Mexico, scientists are doing something astonishing. They're creating a white dwarf star - not a whole star but enough of one to study in minute detail. As part of his series, "Joe's Big Idea," NPR's Joe Palca introduces us to the astronomer behind this exotic project and explains why he's determined to learn all he can about this interesting stellar object.

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Shots - Health News
3:30 pm
Wed March 5, 2014

To Clean Drinking Water, All You Need Is A Stick

Current water-filtering technology is costly, but MIT scientists are testing a simpler and cheaper method that uses wood from white pine trees.
Wikimedia Commons

Originally published on Fri March 7, 2014 7:00 am

Removing all the dangerous bacteria from drinking water would have enormous health benefits for people around the world.

The technologies exist for doing that, but there's a problem: cost.

Now a scientist at the Massachusetts Institute of Technology thinks he's on to a much less expensive way to clean up water.

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Shots - Health News
1:33 pm
Mon February 3, 2014

Inexpensive Aquarium Bubbler Saves Preemies' Lives

A nurse attaches the low-cost breathing machine (far left) to an infant at The Queen Elizabeth Central Hospital in Blantyre, Malawi.
Jocelyn Brown Rice University

There's only one thing better than having a good idea, and that's having a good idea that really works.

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Research News
4:04 am
Fri January 31, 2014

Scientists Come Close To Finding True Magnetic Monopole

Originally published on Fri January 31, 2014 6:58 am

Transcript

DAVID GREENE, HOST:

Scientists may have filled in a gap in one the fundamental theories of physics. We've always been told that magnets have two poles, north and south. But theory suggests there should be something called a magnetic monopole, a magnet that has either a north pole or a south pole but not both of them. So far no one has found this elusive magnetic monopole.

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Shots - Health News
7:52 am
Sat January 4, 2014

Saving Babies' Lives Starts With Aquarium Pumps And Ingenuity

Neonatal nurse Florence Mwenifumbo monitors a newborn receiving bubble CPAP treatment in Blantyre, Malawi. The device was developed by students at Rice University in Houston.
Rice 360/Rice University

Originally published on Sat January 4, 2014 5:15 pm

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Technology
3:21 pm
Fri December 27, 2013

To Make Intersections Smarter, We Need Cars To Be Smarter, Too

Originally published on Fri December 27, 2013 6:15 pm

Transcript

ROBERT SIEGEL, HOST:

From NPR News, this is ALL THINGS CONSIDERED. I'm Robert Siegel.

Car companies have already begun to design cars that can drive themselves. But to make these smart cars really useful, they'll also need smart roads. As part of his series, "Joe's Big Idea," NPR science correspondent Joe Palca has this story about some computer scientists who were designing a smart traffic intersection. How smart? Well, it can keep traffic flowing at least 10 times faster than old-fashioned intersections.

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Space
3:35 pm
Tue December 24, 2013

Space Station Gets Fixed In Christmas Eve Space Walk

Originally published on Tue December 24, 2013 7:02 pm

Transcript

ROBERT SIEGEL, HOST:

Flying above the Earth today other Christmas Eve mission, surfing the globe of thousands of miles an hour, were two astronauts. In a spacewalk today, they replaced a pump that is crucial for normal operations aboard the International Space Station.

NPR's Joe Palca has more.

JOE PALCA, BYLINE: The pump circulates ammonia coolant around the station in one of two independent cooling systems. Having two systems is essential for removing the heat generated by all the station's electrical equipment.

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Shots - Health News
2:05 am
Thu November 28, 2013

'The Coolest Thing Ever': How A Robotic Arm Changed 4 Lives

Dee Faught tests a robotic arm installed on his wheelchair in September. Commercially produced robotic arms can cost tens of thousands of dollars, but three Rice engineering students built one for Dee for about $800.
Eric Kayne for NPR

Originally published on Mon December 2, 2013 11:30 am

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Shots - Health News
9:48 am
Wed November 6, 2013

How Pictures Of Infant Boy's Eyes Helped Diagnose Cancer

A milky eye can be a sign of early cancer of the retina.
Courtesy of Bryan Shaw

Originally published on Thu November 7, 2013 8:51 pm

Bryan Shaw never expected to write a research paper about a rare eye cancer.

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The Two-Way
12:30 pm
Wed October 9, 2013

Jupiter Or Bust, But First A Quick Fly-By Of Home

NASA's flight path for its Juno space probe, which is expected to buzz Earth at 3:21 p.m. ET on Wednesday.
NASA

After traveling for more than two years and some 1 billion miles, NASA's Juno mission to Jupiter is back where it started. Almost. At 3:21 p.m. ET Wednesday, the Juno space probe will be 347 miles away from Earth, just above the southern tip of Africa.

(As an aside, at around 11:30 a.m. ET, it was more than 90,000 miles away.)

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