Category: ScienceNews

Parasites have roamed the Earth for a long time. They were here before the dinosaurs: The oldest fossils are more than 500 million years old. Today on the show, Regina G. Barber speaks with paleontologists Karma Nanglu and Danielle de Carle about a mysterious fossil called the “Riddler,” and the oldest-ever leech fossil. They share stories of the enduring power of parasitism through the ages and why the clues to prehistoric mysteries may be tucked in a basement.


Interested in more science behind rare fossils? Email us your question at shortwave@npr.org.


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As two species of coral are killed off by the 2023 heatwave in the Florida reefs, the abilities of different plankton species to cope with rising CO2 remain crucially unknown. Also, retrospective research shows a strong suggestion that mRNA covid vaccination might serendipitously boost certain types of cancer immunotherapy. And, if you can’t identify changing agricultural crop types from satellite observations, why not just strap a camera to your bike helmet?

Presenter: Roland Pease Producer: Alex Mansfield Production Coordinator: Jana Bennett-Holesworth

(Image: Dead elkhorn coral (Acropora palmata). Credit: imageBROKER/Rolf von Riedmatten via Getty Images).

Around this time of year, every night, a quiet exodus is occurring. Hundreds of millions of birds are migrating thousands of miles south for the winter. One of the biggest dangers for these tiny travelers? Glass. 

Researchers estimate that every year in the U. S., collisions with glass windows take out at least a billion birds. Even if the birds initially fly away, these collisions can cause concussions, broken bones, and other injuries; most victims don’t survive. 

After much reporting, NPR science correspondent Nell Greenfieldboyce has found … it doesn’t have to be this way. Scientists and researchers have studied how to stop collisions from happening, and examples around the country indicate that even little solutions can make a big difference.

Interested in more seasonal animal science? Email us your question at shortwave@npr.org.

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Salt marshes exist on every coast of the U.S., but these important wetlands are succumbing quickly to the effects of sea level rise caused by climate change. Grace Go of our journalism training program, PBS News Student Reporting Labs, has the story of how one young photographer from Massachusetts is fighting to protect these places. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Tuberculosis – the world’s deadliest infectious disease – could be dormant in your system for years before you realize you have it. In the U.S., it’s relatively rare; provisional data shows that there were just over 10,000 cases in 2024. But in other parts of the world, especially lower-income countries, the disease is spreading much more actively. Worldwide, more than 10 million people are diagnosed with an active tuberculosis infection every year. And even though modern medicine has all the tools to cure it, over a million people around the world still die from the sickness annually.

Author John Green thinks that’s a problem. In his book Everything is Tuberculosis, he charts the spread of tuberculosis in the past to the lessons it has to teach us in the present.


Interested in more science and medical history? Email us your question at shortwave@npr.org.

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In the Arctic tundra of Alaska, climate change is forcing an Alaska Native village to relocate. Rising temperatures are melting the underground permafrost. The melted ice then mixes with the soil, creating unstable land the Yupʼik people call Alaskan quicksand. Amalia Huot-Marchand and a team from the Medill School of Journalism report. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Some scientists looking to preserve vulnerable species have turned to a controversial technique: synthetic biology. This catchall term often means genetic engineering – introducing new genes to an organism. And a recent narrow vote by the International Union for Conservation of Nature on using the technology shows how divided scientists are on the issue of releasing genetically altered species. Science correspondent Nate Rott wades into the debate with us and reveals whether or not the Union voted to place a moratorium on releasing gene-edited species.


Read more of Nate’s reporting on the topic.  


Interested in more science debates? Email us your question at shortwave@npr.org.


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How would you record a special moment? Maybe you could take a photograph, film a little video, or record some audio. We have lots of ways of recording what life LOOKS and SOUNDS like, but is the same true for the other senses? What if you wanted to record the smells that greet you on entering your favourite restaurant? Or record the way your loved ones hand feels in yours?

These are the questions on the mind of listener Aravind, from California in the USA. He wants to know if there are any ways of recording and reproducing sensory experiences like taste and smell, or physical touch.

Anand Jagatia is on the case, and is smelling, tasting, and quite literally FEELING his way to the answer. From a multi-sensory movie experience in Valencia, Spain, to the fascinating history of the pioneers of ‘scented cinema’, through to the ground-breaking “haptic technology” which is enhancing the capabilities of our sense of touch. Both for us, and for the robots which do the jobs we don’t want to.

Presenter: Anand Jagatia

Producer: Emily Knight

Editor: Ben Motley

(Photo: Woman making ASMR sounds with microphone and perfume on yellow background, closeup - stock photo. Credit: Liudmila Chernetska via Getty Images)

Record high gold prices have us looking at the science of inflation, why gold is leaking from volcanoes, and entomologist Katy Price explains why shiny gold can be a good color for camoflague.

Plus the dark science going on in a gold mine, whether we can move at the speed of light, and the debate around golden rice. All that, plus more unexpected elements.

Presenter: Marnie Chesterton Producers: Alice Lipscombe-Southwell, with Margaret Sessa-Hawkins, Robbie Wojciechowski and Lucy Davies.

The rate of smoking cigarettes has steadily declined since the 1960s – when Congress required warnings on cigarette boxes. Research shows that people are more likely to try to quit smoking when they’re under 40. But a new study in the journal The Lancet Healthy Longevity shows that quitting later in life can still be beneficial – and could possibly lower your risk for dementia. For this and more news from the science journals, Short Wave hosts Regina G. Barber and Emily Kwong talk with All Things Considered host Mary Louise Kelly.

Interested in knowing more about science behind the headlines? Email us your question at shortwave@npr.org.

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