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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1:52am

Thu June 7, 2012
Science

A Scientist's 20-Year Quest To Defeat Dengue Fever

Originally published on Fri July 6, 2012 2:26 pm

Scott O'Neill wants to rid the world of dengue fever by infecting mosquitoes with bacteria so they can't carry the virus that causes the disease.
Benjamin Arthur for NPR

First of a two-part series

This summer, my big idea is to explore the big ideas of science. Instead of just reporting science as results — the stuff that's published in scientific journals and covered as news — I want to take you inside the world of science. I hope I'll make it easier to understand how science works, and just how cool the process of discovery and innovation really is.

A lot of science involves failure, but there are also the brilliant successes, successes that can lead to new inventions, new tools, new drugs — things that can change the world

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1:42am

Mon June 4, 2012
Science

Summer Science: How To Build A Campfire

Originally published on Mon June 4, 2012 10:10 am

iStockphoto.com

Summer living is supposed to be easy — school is out, the days are long, the traffic eases. But it's not all inner tubes and lemonade: Summer can throw us some curveballs, too. How can I avoid sunburn? What can I do to stave off that brain freeze? Why do my s'mores always burn?

Fear not; NPR is here to help. As part of our new Summer Science series, we'll turn to science to tackle these vexing questions, starting with how to build the perfect campfire.

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2:04am

Wed April 18, 2012
Humans

Can You Think Your Way To That Hole-In-One?

Originally published on Wed April 18, 2012 6:50 am

Bo Van Pelt celebrates his hole-in-one during the final round of the Masters on April 8. New research suggests that golfers may be able to improve their games by believing the hole they're aiming for is larger than it really is.
Andrew Redington Getty Images

Psychologists at Purdue University have come up with an interesting twist on the old notion of the power of positive thinking. Call it the power of positive perception: They've shown that you may be able to improve your golf game by believing the hole you're aiming for is larger than it really is.

Jessica Witt, who studies how perception and performance are related, decided to look at golf — specifically, how the appearance of the hole changes depending on whether you're playing well or poorly.

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2:05am

Tue April 3, 2012
Space

Earth Has Just One Moon, Right? Think Again

Originally published on Wed April 4, 2012 1:01 pm

The last lunar eclipse of 2011 as seen from the San Gabriel Valley east of Los Angeles on Dec 10, 2011.
Frederic J. Brown AFP/Getty Images

Everybody knows that there's just one moon orbiting the Earth. But a new study by an international team of astronomers concludes that everybody is dead wrong about that.

"At any time, there are one or two 1-meter diameter asteroids in orbit around the Earth," says Robert Jedicke, an astronomer at the Institute for Astronomy at the University of Hawaii.

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4:09pm

Wed March 21, 2012
Space

Spacecraft's Wild Ride To Mercury Yields Surprises

Originally published on Wed December 12, 2012 5:40 pm

The Messenger spacecraft is depicted over the Calvino Crater on Mercury in this enhanced-color image of the planet's surface.
NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

There's a small spacecraft called Messenger that's been orbiting the planet Mercury for a year. Today, at the Lunar and Planetary Science Conference in Houston, astronomers revealed what they've learned about the innermost planet in our solar system, and some of the new knowledge is puzzling.

Maria Zuber, a planetary scientist at the Massachusetts Institute of Technology, studied a large crater 900 miles across called Caloris.

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