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.

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Only a vaccine will save America from the COVID -19 pandemic. At least that's the opinion of nearly all public health officials.

Obviously, vaccine manufacturers are critical to any vaccine campaign. But there's another group that plays a less obvious but still crucial role in making sure vaccines do what they're intended: mathematicians.

Even if the Biden administration releases all available doses of the two authorized COVID-19 vaccines, for a while at least, supplies will remain limited. How best to use that limited supply is a question mathematicians can help answer.

For a scientist, few things are sweeter than data from an experiment that confirms a theoretical prediction.

Frequently, however, scientists don't live long enough to savor that reward. Take Albert Einstein's prediction about gravitational waves. Einstein postulated their existence in 1916, but they weren't detected until a hundred years later, long after the great physicist had died.

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And joining us now with more is NPR science correspondent Joe Palca.

Hey, Joe.

JOE PALCA, BYLINE: Hello, Ailsa.

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Pfizer is ready to ask the Food and Drug Administration to authorize emergency use of the company's COVID-19 vaccine, after an updated analysis of the clinical trial data found the vaccine to be 95% effective.

A second COVID-19 vaccine now also appears highly effective in preventing illness following exposure to the virus that causes the disease.

The biotech company Moderna Inc. said Monday that its experimental vaccine was 94.5% effective in preventing disease, according to an analysis of its clinical trial.

The news comes a week after Pfizer and BioNTech said their vaccine was more than 90% effective.

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Companies trying to make a vaccine for COVID-19 are trying a variety of approaches. Most involve laboratories capable of sophisticated biotechnology, but NPR's Joe Palca has this report about one approach for creating a vaccine which starts in a greenhouse.

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All right, now let's work through what treatments the president is getting and what they tell us with NPR science correspondent Joe Palca. Good morning, Joe.

JOE PALCA, BYLINE: Good morning.

Scientists and engineers in California are building a unique camera for a unique telescope.

The Rubin Observatory telescope going up on Cerro Pachón in north-central Chile can capture an unusually large swath of sky in a single image.

The camera capable of capturing those images has to be enormous. The one researchers are building at the SLAC National Accelerator Laboratory in Menlo Park, Calif., certainly is.

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Turns out that cows may be helpful to us in the pandemic. There's a biotech company in South Dakota using cows to make antibodies for treating human disease. And lately, they've been making antibodies for COVID-19. Here's NPR's Joe Palca.

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There are rare chemical elements, and then there is tennessine. Only a couple dozen atoms of the stuff have ever existed. For the 150th anniversary of the periodic table, NPR science correspondent Joe Palca has the convoluted story of one of the latest elements to be added.

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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.

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Much of South America experienced a solar eclipse this week. NPR's Joe Palca went to Chile to see it in its totality. And because half of the world's major telescopes are in Chile, he decided to stick around and see what researchers are studying. And Joe Palca is with us now from 17,000 feet.

Hi, Joe.

JOE PALCA, BYLINE: Hey, Michel. How are you doing?

MARTIN: OK. So where are you right now, exactly?

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The path of a total solar eclipse passed over a major observatory in Chile this afternoon. NPR science correspondent Joe Palca was there. He saw the eclipse from the Cerro Tololo Inter-American Observatory from where he joins us now live.

Hey, Joe.

JOE PALCA, BYLINE: Hey, Mary Louise. How are you doing?

KELLY: I'm well. Thank you. And I'm thinking, I have actually - I have seen a couple of total solar eclipses. I have never seen one from an observatory, which I'm guessing is a pretty darn good place to see one.

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There's a mole stuck in the ground on Mars - not the small, furry animal but a probe on NASA's Mars InSight lander called the mole. It's a probe that was supposed to go 15 feet beneath the Martian surface, but it got stuck after only going one.

NPR's Joe Palca has more.

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