Joe Palca

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2020 could be a banner year for the U.S. space program. If all goes well, two commercial companies may be able to send astronauts into space. This country hasn't been able to do that since the shuttle program ended in 2011. Also next year, a new six-wheeled rover is supposed to head off to Mars. And hundreds of small satellites are scheduled to go into orbit. And that will provide global Internet coverage. Here to talk about the year ahead in space is NPR science correspondent Joe Palca. Hey, Joe.

JOE PALCA, BYLINE: Hey, Lulu.

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This next story is about the anchovy and the whale - specifically about why an agile anchovy can't escape from a ponderous whale. NPR science correspondent Joe Palca reports that as with so many things in life, the answer is timing.

JOE PALCA, BYLINE: Whale biologist David Cade, who recently graduated from Stanford University, says there's no question humpback whales enjoy a tasty meal of anchovies, but they're not always successful at getting one.

The Year In Science News

Dec 26, 2019

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All right, astronomers have known about black holes for a long time, but they never had a picture of one until this year. We asked NPR science correspondent Joe Palca what were the three biggest science stories of the year, and here's what he said.

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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.

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.

It's not easy to treat viral infections. Just ask anyone with a bad cold or a case of the flu.

But scientists in Massachusetts think they may have a new way to stop viruses from making people sick by using what amounts to a pair of molecular scissors, known as CRISPR.

It's a gene editing tool based on a molecule that occurs naturally in microorganisms.

When Morning Edition first went on the air on Nov. 5, 1979, AIDS was an unknown acronym. And the ideas of a cloned mammal or a map of human DNA may as well have been science fiction.

But much has changed in the past four decades. During that time, spectacular advances across the scientific disciplines have had a major impact on the way we live today.

In 1981, Morning Edition aired a story about a strange set of cancers called Kaposi's sarcoma.

Tiny satellites are taking on a big-time role in space exploration.

CubeSats are small, only about twice the size of a Rubik's Cube. As the name suggests, they're cube-shaped, 4 inches on each side, and weigh in at about 3 pounds. But with the miniaturization of electronics, it's become possible to pack a sophisticated mission into a tiny package.

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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.

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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.

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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.

What To Feed Locusts

Aug 9, 2019

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Here at NPR, we've been trying to do more stories that answer people's questions about issues they face in their daily lives. NPR's Joe Palca apparently didn't get the memo because he's got a story with the answer to a question almost nobody has - what to feed a colony of captive locusts.

JOE PALCA, BYLINE: To answer that question, it helps to go to Tempe, Ariz.

RICK OVERSON: We are inside one of the two main rooms of the locust lab here at Arizona State University. We affectionately refer to it as Hopper Town.

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