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 is also the founder of NPR Scicommers – A science communication collective.

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, 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's 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. In 2019, Palca was elected to the American Academy of Arts and Sciences for outstanding achievement in journalism.

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.

Copyright 2019 NPR. To see more, visit https://www.npr.org.

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There's a mole on Mars that's making NASA engineers tear their hair out.

No, they haven't discovered a small, insectivorous mammal on the red planet.

The mole vexing engineers at the Jet Propulsion Laboratory in Pasadena is a scientific instrument known as the Heat Flow and Physical Properties Package, or HP3 — or just "the mole" — carried on NASA's InSight probe that landed on Mars a year ago.

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A rescue appears to have taken place on the surface of Mars. NASA engineers announced today that they have salvaged - for now - a key part of one of their probes. NPR's Joe Palca has more.

It's hard for doctors to do a thorough eye exam on infants. They tend to wiggle around — the babies, that is, not the doctors.

But a new smartphone app takes advantage of parents' fondness for snapping pictures of their children to look for signs that a child might be developing a serious eye disease.

The app is the culmination of one father's five-year quest to find a way to catch the earliest signs of eye disease, and prevent devastating loss of vision.

Copyright 2019 NPR. To see more, visit https://www.npr.org.

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Locusts are not just a biblical plague. They're swarming around the world. Still. Again.

According to the Food and Agriculture Organization of the United Nations, the desert locust situation is serious in Yemen and at the Indo-Pakistan border.

Copyright 2019 NPR. To see more, visit https://www.npr.org.

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Many medical tests require blood drawn with a needle. But as NPR's Joe Palca reports, some engineers in California have turned to another bodily fluid for doing these tests - sweat.

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A telescope now under construction promises to revolutionize astronomy. It's being built atop a mountain in Chile, in the Andes. It's called the LSST. It is a survey telescope taking wide-angle views of the sky. And this telescope is expected to spot rare events that previously have been hard or impossible to find. NPR science correspondent Joe Palca toured the telescope's construction site.

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There's a telescope high up in the mountains of Chile that's looking for signals from the earliest moments of the universe. Finding these signals would be key to explaining how the universe began. NPR's Joe Palca has just returned from a visit to the telescope, and he has this report on a remarkable facility in a remarkable location.

JOE PALCA, BYLINE: The telescope is called CLASS. It's located on top of Cerro Toco in the Atacama Desert, one of the driest places on Earth. And at 17,000 feet, it's one of the highest telescopes in the world.

When Neil Armstrong set foot on the moon 50 years ago, it was an inspiring moment for people around the world.

But another kind of explorer is responsible for much of the modern enthusiasm for space exploration.

"Since the days of Apollo, the greatest adventures in space have been these robots that have gone all over the solar system," says Emily Lakdawalla, a self-described planetary evangelist at the Planetary Society.

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