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

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Saying goodbye to NPR's longtime science correspondent Joe Palca

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25 years later, looking back on the accomplishments of the Mars Pathfinder

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The world's biggest digital camera is almost ready to be installed on its telescope

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NASA's InSight Mars lander may shut down soon. Here's what it's achieved so far

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The aurora australis over Amundsen-Scott South Pole Station in 2009. A new report from the National Science Foundation finds sexual harassment and assault are a major problem at remote facilities. Patrick Cullis/U.S. Antarctic Program photo Library hide caption

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Patrick Cullis/U.S. Antarctic Program photo Library

Sexual harassment and assault plague U.S. research bases in Antarctica, report says

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The Corbevax vaccine was invented at the Center for Vaccine Development at Texas Children's Hospital and intended for countries that couldn't get access to more expensive COVID vaccines. India has inoculated millions of teens with Corbevax (above, a vaccination drive for children ages 12-14 at a school in Bangalore) and on August 10 authorized the vaccine as a booster for adults. Manjunath Kiran/AFP via Getty Images hide caption

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Manjunath Kiran/AFP via Getty Images

Whatever happened to the new no-patent COVID vaccine touted as a global game changer?

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It's summer and people are hot. We answer some questions about sweat

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The importance of sweat: We need it to keep cool

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Russia says it will pull out of the International Space Station after 2024

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What looks much like craggy mountains on a moonlit evening is actually the edge of a nearby, young, star-forming region NGC 3324 in the Carina Nebula. Captured in infrared light by the Near-Infrared Camera (NIRCam) on NASA's James Webb Space Telescope, this image reveals previously obscured areas of star birth. NASA, ESA, CSA, STScI hide caption

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NASA, ESA, CSA, STScI

NASA's James Webb telescope will change how we view the universe

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The James Webb Space Telescope (shown here being tested on earth) is expected to reveal some of the most spectacular views of the Universe ever seen. Chris Gunn/Northrop Grumman, NASA hide caption

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Chris Gunn/Northrop Grumman, NASA

NASA's James Webb telescope reveals the universe as we've never seen it before

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NASA has lost contact with a small satellite called CAPSTONE

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Canada aims to provide medical technologies for deep space exploration

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