Joe Palca
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NPR's Ayesha Rascoe asks science reporter Joe Palca about the Nancy Grace Roman Space Telescope, which will have a field of view at least 100 times larger than Hubble Space Telescope.
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NASA's Nancy Grace Roman Space Telescope, set to launch this weekend, may shed new light on the nature of dark energy -- that mysterious force causing the universe to expand.
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Why did a $72 million mission to study water on the moon fail so soon after launch? A new NASA report has the answer.
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The Lunar Trailblazer orbiter's launch window opens Feb 26. It's catching a ride with Intuitive Machines IM-2 mission which is landing on the moon near the south pole. Both have instruments for looking for water. -
The Lunar Trailblazer is an uncrewed mission to find water on the moon and determine its characteristics, accessibility and possible uses.
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Correspondent Joe Palca is retiring after 30 years covering science for NPR. We have an homage to his work - sometimes silly, sometimes serious, always scientific.
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More than two decades ago a small probe carrying an even smaller rover landed on Mars. Pathfinder and the Sojourner rover paved the way for sophisticated robotic explorers that have landed since 1997.
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NASA's InSight probe landed on Mars in 2018 to help scientists study the planet's interior. But Martian dust has been building up on InSIght's solar arrays, which could end its mission.
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As part of our summer series on sweat, we get answers to the questions: Do we need to sweat during sleep? And, why does a warm bath help you sleep, even if it makes you sweat?
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NPR begins a celebration of sweat — what it's made of, where it comes from and what it smells like. Spoiler alert: most of the time it doesn't have any smell at all.
