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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4:06am

Sun November 4, 2012
Superstorm Sandy: Before, During And Beyond

Levee Rebuilding Questioned After Sandy Breach

Originally published on Mon November 5, 2012 2:19 pm

A man crosses a flooded street in the wake of Superstorm Sandy on Thursday in Little Ferry, N.J. Surprise coastal surge floods caused by the storm battered Little Ferry, Moonachie and some other towns along the Hackensack River in Bergen County, all areas unaccustomed to flooding.
Mike Groll AP

Every time a storm brings flooding to a large metropolitan area, there are calls to improve the levee systems that are designed to prevent flooding.

But there's a major problem with doing that. "We don't know where all of our levees are," says Samantha Medlock with the Association of State Floodplain Managers.

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3:39pm

Thu November 1, 2012
Around the Nation

In Flooded New Jersey, No Oversight For Levees

Originally published on Thu November 1, 2012 5:42 pm

An emergency responder helps residents of Little Ferry, N.J., after their neighborhood was flooded due to Superstorm Sandy.
Andrew Burton Getty Images

Residents of Moonachie and Little Ferry, N.J., are beginning to clear the damage after their communities were inundated by floodwaters. The flooding occurred when a system of levees and berms was unable to control the storm surge pushed ashore by Superstorm Sandy.

Geologist Jeffrey Mount of the University of California, Davis, isn't surprised. "There really are only two kinds of levees," he says, "those that have failed, and those that will fail."

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2:29am

Mon October 15, 2012
Shots - Health Blog

Spray Lights Up The Chemical That Causes Poison Ivy Rash

Originally published on Thu October 18, 2012 1:17 pm

Urushiol, the chemical in poison ivy, is also harvested from the Japanese lacquer tree to coat lacquerware. Here, a rash caused by lacquerware that likely was not properly cured.
Kenji Kabashima

You'd think that someone who is a science correspondent and is as allergic to poison ivy as I am would have heard of urushiol, but no. I didn't recognize the word when I saw it a week or so ago. Now, thanks to my new beat (Joe's Big Idea), I'm allowed to dig a little deeper into stories, and what I learned about urushiol is pretty amazing.

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11:58am

Thu October 11, 2012
The Salt

100 Years Ago, Maillard Taught Us Why Our Food Tastes Better Cooked

Originally published on Thu October 11, 2012 1:36 pm

A tower of profiteroles like this one, known as croquembouche, was created in France to celebrate Maillard, the man credited with identifying a key reaction in food science.
Gavin Tapp via Flickr

A few hundred scientists gathered in the small French city of Nancy recently to present scientific papers related to a chemical reaction. Now that may seem a bit humdrum and hardly worth mentioning in The Salt, but in this case, it isn't.

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2:17am

Wed October 10, 2012
Shots - Health Blog

Fun With Physics: How To Make Tiny Medicine Nanoballs

Originally published on Thu October 11, 2012 8:20 am

Álvaro Marín

For the past decade, scientists have been toying with the notion of encapsulating medicine in microscopic balls.

These so-called nanospheres could travel inside the body to hard-to-reach places, like the brain or the inside of a tumor. One problem researchers face is how to build these nanospheres, because you'd have to make them out of even smaller nanoparticles.

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