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. He is currently focused on the eponymous series, "Joe's Big Idea." Stories in the series explore the minds and motivations of scientists and inventors.

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 forScience 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.

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Space
4:05 am
Fri September 6, 2013

Communications Gear Hitches Ride With Lunar Probe

Originally published on Fri September 6, 2013 11:40 am

Transcript

STEVE INSKEEP, HOST:

It's MORNING EDITION from NPR News. Good morning, I'm Steve Inskeep.

RENEE MONTAGNE, HOST:

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Joe's Big Idea
2:38 pm
Thu September 5, 2013

Coronal Holes: The (Rarely Round) Gaps In The Sun's Atmosphere

NASA's Solar Dynamics Observatory captured this picture of the sun on June 18. The dark blue area in the upper left quadrant of the sun is a huge coronal hole more than 400,000 miles across. Coronal holes are areas of the sun's outermost atmospheric layer — the corona — where the magnetic field opens up and solar material quickly flows out.
NASA/SDO

Originally published on Tue September 10, 2013 4:21 pm

There's a hole in the sun's corona. But don't worry — that happens from time to time.

"A coronal hole is just a big, dark blotch that we see on the sun in our images," says Dean Pesnell, project scientist for NASA's Solar Dynamics Observatory. "We can only see them from space, because when we look at them [through] a regular telescope, they don't appear."

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Shots - Health News
2:45 pm
Wed September 4, 2013

The Inside Story On The Fear Of Holes

Beautiful or creepy? A recent survey found that an image of a lotus seed head makes about 15 percent of people uncomfortable or even repulsed.
tanakawho Flickr.com

Originally published on Thu September 5, 2013 8:25 am

Trypophobia may be moving out of the urban dictionary and into the scientific literature.

A recent study in the peer-review journal Psychological Science takes a first crack at explaining why some people may suffer from a fear of holes.

Trypophobia may be hard to find in textbooks and diagnostic manuals, but a brief Web search will show that plenty of people appear to have it.

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Science
4:22 pm
Tue August 27, 2013

Hole Or Whole, Why Can Our Brains Hear The Difference?

Originally published on Tue August 27, 2013 5:31 pm

Transcript

MELISSA BLOCK, HOST:

And finally this hour, a hole. This summer, NPR's science correspondent Joe Palca has been helping us out. Occasionally, our mix of news and features doesn't completely fill our two-hour program and we end up with a few small holes to fill, so Joe has been filling them with short science-y pieces about holes. He's talked about black holes, theoretical holes, even donut holes. Here's his latest.

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Science
4:22 pm
Wed August 21, 2013

Defining A Hole Presents A Philosophical Quandary

Originally published on Tue August 27, 2013 10:24 am

Transcript

AUDIE CORNISH, HOST:

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

MELISSA BLOCK, HOST:

I'm Melissa Block. And a radio confession here. We had a hole in our program right here. We didn't have a piece just the right length to fill out this segment. It happens occasionally. Well, all summer, NPR science correspondent Joe Palca has been helping us get rid of these little holes with some short stories about holes.

JOE PALCA, BYLINE: Today, we're going to examine the question, what is a hole anyway? What's it made of?

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