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.

Scientists at the University of Edinburgh have found a field of dinosaur footprints on the Isle of Skye. The footprints were made by giant dinosaurs 50 feet long that weighed nearly 20 tons. (This piece initially aired on Dec. 3, 2015, on All Things Considered.)

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The Nobel Prize has a special aura. Winning one instantly certifies you as someone who has reached the pinnacle of science.

But what does it take to win the prize? And what does it do to your life? There are different answers for every scientist, of course. But for Nobel laureate and chemist Harold "Harry" Kroto, some of the answers might surprise you.

"I've always felt that the Nobel Prize gives me nothing as far as science is concerned," Kroto told me when I visited him earlier this year in Tallahassee, Fla.

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And another Nobel Prize was awarded this morning.

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The average American commuter spends 42 hours per year stuck in rush-hour traffic, according to one recent study.

More than four decades ago, West Virginia University thought it had found a solution to urban traffic woes: It built a transportation system known as personal rapid transit, or PRT.

Instead of riding with dozens of others on a train car or bus, PRT pods carry a small number of people. And instead of making stops, PRT takes you directly to your destination, nonstop.

Researchers in Switzerland say they've solved a nearly 100-year-old astronomical mystery by discovering what's in the wispy cloud of gas that floats in the space between the stars.

Engineers at Sandia National Laboratory have come up with what they think is a safer diagnostic test for anthrax bacteria — a test that would prevent the "bad guys" from getting their hands on this dangerous pathogen.

Sandia is home to the International Biological Threat Reduction Program. "Our interest is in safety and security of pathogens," says Melissa Finley. Finley isn't a bioweapons expert. She's a veterinarian.

A team of Indian physicists has made a mathematical model that purports to explain why ants don't have traffic jams. NPR's Joe Palca explains as part of his series, Joe's Big Idea.

This story originally aired on Morning Edition on January 19, 2015.

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