Joe Palca Joe Palca is a science correspondent for NPR.
Joe Palca, photographed for NPR, 17 January 2019, in Washington DC.
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Joe Palca

A Newer, Faster Way To Detect Norovirus In Water Supplies

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Locusts swarm over Yemen's capital. Mohammed Huwais /AFP/Getty Images hide caption

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Mohammed Huwais /AFP/Getty Images

Maybe The Way To Control Locusts Is By Growing Crops They Don't Like

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These Engineers Have Found A Way To Use Sweat For Some Medical Tests

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A locust from the colony at the Arizona State University locust lab. Joe Palca/NPR hide caption

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Joe Palca/NPR

What To Feed Locusts

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One of the 54 steerable dishes that make up much of the Atacama Large Millimeter Array in Chile's Atacama Desert. This one is 39 feet in diameter. Kathy Hudson/Hudson Works hide caption

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Kathy Hudson/Hudson Works

Chile And Telescopes Are A Match Made In Heaven

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Large Synoptic Survey Telescope under construction on Cerro Pachón in Chile Joe Palca/NPR hide caption

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Joe Palca/NPR

New Telescope Promises To Revolutionize Astronomy

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CLASS Telescope Kathy Hudson/Hudson Works hide caption

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Kathy Hudson/Hudson Works

Telescope In Chile's Mountains Looks For Signals To Explain How The Universe Began

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This illustration shows NASA's Cassini above Saturn's northern hemisphere before making one of its "Grand Finale" dives. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

Robots, Not Humans, Are The New Space Explorers

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Sun over Pacific Ocean during total eclipse as viewed from the Cerro Tololo Inter-American Observatory. Kahty Hudson/Hudson Works hide caption

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Kahty Hudson/Hudson Works

Total Eclipse Hits Chile, Home To Half Of World's Telescopes

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Sun over the Pacific Ocean during total eclipse viewed from the Cerro Tololo Inter-American Observatory Kathy Hudson/Hudson Works hide caption

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Kathy Hudson/Hudson Works

Path Of A Total Solar Eclipse Passes Over A Major Observatory In Chile

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Dawn on eclipse day at the Cerro Tololo Inter-American Observatory. Joe Palca/NPR hide caption

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Joe Palca/NPR

Solar Eclipse Will Pass Over A Major Observatory In Chile

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Scientists Study Human Cancer Genes In Plants

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This graphic shows the path of Tuesday's solar eclipse and how much you can see from different places. The yellow band represents the path of totality, or the areas in which a total eclipse will be visible. Other areas will be able to see a partial solar eclipse. Michael Zeiler, greatamericaneclipse.com hide caption

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Michael Zeiler, greatamericaneclipse.com

Support structure for the thermal probe called "the mole." NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

NASA Engineers Try To Remedy Stuck Probe On Mars

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Some cottonwood trees are home to microorganisms that are known methane producers. Sean Bagshaw/Science Source/Getty Images hide caption

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Sean Bagshaw/Science Source/Getty Images

Getting Fire From A Tree Without Burning The Wood

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