Science Magazine Podcast (Science)
Weekly podcasts from Science Magazine, the world's leading journal of original scientific research, global news, and commentary.

A detection of a single neutrino at the 1-square-kilometer IceCube detector in Antarctica may signal the beginning of “neutrino astronomy.” The neutral, almost massless particle left its trail of debris in the ice last September, and its source was picked out of the sky by the Fermi Gamma-ray Space Telescope soon thereafter. Science News Writer Daniel Clery joins host Sarah Crespi to discuss the blazar fingered as the source and how neutrinos from this gigantic matter-gobbling black hole could help astronomers learn more about mysterious high-energy cosmic rays that occasionally shriek toward Earth.

 

Read the research.

 

Sarah also talks with Cornell University’s Susan McCouch about her team’s work on deep-water rice. Rice can survive flooding by fast internodal growth—basically a quick growth spurt that raises its leaves above water. But this growth only occurs in prolonged, deep flooding. How do these plants know they are submerged and how much to grow? Sarah and Susan discuss the mechanisms involved and where they originated.

 

 

This week’s episode was edited by Podigy.

 

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[Image: NASA/Goddard Space Flight Center Conceptual Image Lab; Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Daniel Clery

Direct download: SciencePodcast_180713.mp3
Category:Science -- posted at: 1:59pm EDT

Wild polio has been hunted to near extinction in a decades-old global eradication program. Now, a vaccine-derived outbreak in the Democratic Republic of the Congo (DRC) is threatening to seriously extend the polio eradication endgame. Deputy News Editor Leslie Roberts joins host Sarah Crespi to talk about the tough choices experts face in the fight against this disease in the DRC.

 

Sarah also talks with Online News Editor David Grimm about when dogs first came to the Americas[linkTK]. New DNA and archeological evidence suggest these pups did not arise from North American wolves, but came over thousands of years after the first people did. Now that we know where they came from, the question is: Where did they go?

 

Read the research.

 

This week’s episode was edited by Podigy.

 

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[Image: Polio virus/David Goodsell/RCSB PDB; Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; David Grimm; Leslie Roberts

Direct download: SciencePodcast_180706.mp3
Category:Science -- posted at: 1:59pm EDT

Public opinion on the morality of animal research is on the downswing in the United States. But some researchers think letting the public know more about how animals are used in experiments might turn things around. Online News Editor David Grimm joins Sarah Crespi to talk about these efforts.

 

Sarah also talks Ken Wachter of the University of California, Berkeley about his group’s careful analysis of data from all living Italians born 105 or more years before the study. It turns out the risk of dying does not continue to accelerate with age, but actually plateaus around the age of 105. What does this mean for attempts to increase human lifespan?

 

In this month’s book segment, Jen Golbeck talks with Simon Winchester about his book The Perfectionists: How Precision Engineers Created the Modern World. Read more book reviews at our books blog, Books et al.

 

This week’s episode was edited by Podigy.

 

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[Image: Chris Jones/Flickr; Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; David Grimm; Jen Golbeck

Direct download: SciencePodcast_180629.mp3
Category:Science -- posted at: 1:59pm EDT

Since the 2016 reports of a mysterious assault on U.S. embassy staff in Cuba, researchers have struggled to find evidence of injury or weapon. Now, new research has discovered inner-ear damage in some of the personnel complaining of symptoms. Former International News Editor Rich Stone talks to host Sarah Crespi about the case, including new reports of a similar incident in China, and what kind of weapon—if any—might have been involved.

 

Sarah also talks with Staff Writer Gretchen Vogel about the bones of an extinct gibbon found in a 2200- to 2300-year-old tomb in China. Although gibbons were often featured in historical poetry and paintings, these bones confirm their presence and the fact that they were distinct from today’s species.  

 

Read the research.

 

This week’s episode was edited by Podigy.

 

Listen to previous podcasts.

  

[Image: Zhu Zhanji c. 1427;Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Gretchen Vogel; Rich Stone

Direct download: SciencePodcast_180622.mp3
Category:Science -- posted at: 1:59pm EDT

Nigeria, Russia, and Florida seem like an odd set, but they all have one thing in common: growing caseloads of HIV. Science Staff Writer Jon Cohen joins host Sarah Crespi to talk about this week’s big read on how the fight against HIV/AIDS is evolving in these diverse locations.

 

Sarah also talks with Armin Raznahan of the National Institute of Mental Health in Bethesda, Maryland, about his group’s work measuring which parts of the human brain are bigger in bigger brains. Adult human brains can vary as much as 2 times in size—and until now this this expansion was thought to be evenly distributed. However, the team found that highly integrative regions are overrepresented in bigger brains, while regions related to processing incoming sensory information such as sight and sound tend to be underrepresented. 

 

This week’s episode was edited by Podigy.

 

Listen to previous podcasts.

  

[Image: Misha Friedman; Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Jon Cohen

Direct download: SciencePodcast_180615.mp3
Category:Science -- posted at: 1:59pm EDT

What book are you taking to the beach or the field this summer? Science’s books editor Valerie Thompson and host Sarah Crespi discuss a selection of science books that will have you catching comets and swimming with the fishes.

 

Sarah also talks with Mira Moufarrej of Stanford University in Palo Alto, California, about her team’s work on a new blood test that analyzes RNA from maternal blood to determine the gestational age of a fetus. This new approach may also help predict the risk of preterm birth.

 

This week’s episode was edited by Podigy.

 

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[Image:  William Warby/Flickr;Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Valerie Thompson

 

Direct download: SciencePodcast_180608.mp3
Category:Science -- posted at: 1:59pm EDT

Astronomers have been able to detect supermassive black holes and teeny-weeny black holes but the midsize ones have been elusive. Now, researchers have scanned through archives looking for middle-size galaxies and found [link TK]traces of these missing middlers. Host Sarah Crespi and Staff Writer Daniel Clery discuss why they were so hard to find in the first place, and what it means for our understanding of black hole formation.

 

Farming animals and plants for human consumption is a massive operation with a big effect on the planet. A new research project that calculated the environmental impact of global food production shows highly variable results for different foods—and for the same foods grown in different locations. Sarah talks with one of the researchers—Joseph Poore of the University of Oxford in the United Kingdom—about how understanding this diversity can help cut down food production’s environmental footprint and help consumers make better choices.

 

 

 

This week’s episode was edited by Podigy.

 

Listen to previous podcasts.

  

[Image: Miltos Gikas/Flickr; Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Daniel Clery

 

Direct download: SciencePodcast_180601.mp3
Category:Science -- posted at: 1:59pm EDT

DNA fingerprinting has been used to link people to crimes for decades, by matching DNA from a crime scene to DNA extracted from a suspect. Now, investigators are using other parts of the genome—such as markers for hair and eye color—to help rule people in and out as suspects. Staff Writer Gretchen Vogel talks with Sarah Crespi about whether science supports this approach and how different countries are dealing with this new type of evidence.

 

Sarah also talks with Jill Fernandes of the University of Queensland in Australia about her Science Advances paper on a light-based technique for detecting Zika in mosquitos. Instead of grinding up the bug and extracting Zika DNA, her group shines near-infrared light through the body. Mosquitoes carrying Zika transmit this light differently than uninfected ones. If it’s successful in larger trials, this technique could make large-scale surveillance of infected mosquitoes quicker and less expensive.  

 

In our monthly books segment, Jen Golbeck talks with author Sarah-Jayne Blakemore about her new work: Inventing Ourselves: The Secret Life of the Teenage Brain. You can check out more book reviews and share your thoughts on the Books et al. blog

 

This week’s episode was edited by Podigy.

 

Listen to previous podcasts.

  

[Image:  Zika virus (red), National Institute of Allergy and Infectious Diseases, National Institutes of Health; Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Gretchen Vogel; Jen Golbeck 

 

Direct download: SciencePodcast_180525.mp3
Category:Science -- posted at: 1:59pm EDT

Two thousand years ago, ancient Romans were pumping lead into the air as they smelted ores to make the silvery coin of the realm. Online news editor David Grimm talks to Sarah Crespi about how the pollution of ice in Greenland from this process provides a detailed 1900-year record of Roman history.

 

This week is also resistance week at Science—where researchers explore the global challenges of antibiotic resistance, pesticide resistance, herbicide resistance, and fungicide resistance. Sarah talks with Sarah Gurr of the University of Exeter in the United Kingdom about her group’s work on the spread of antifungal resistance and what it means for crops and in the clinic.

 

And in a bonus books segment, staff writer Jennifer Couzin-Frankel talks about medicine and fraud in her review of Bad Blood: Secrets and Lies in a Silicon Valley Startup by John Carreyrou.

 

 

This week’s episode was edited by Podigy.

 

Listen to previous podcasts.

  

[Image: Wheat rust/Oregon State University;Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; David Grimm; Jennifer Couzin-Frankel

 

Direct download: SciencePodcast_180518.mp3
Category:Science -- posted at: 1:59pm EDT

Who were the first horse-tamers? Online news editor Catherine Matacic talks to Sarah Crespi about a new study that brings genomics to bear on the question.

 

The hunt for the original equine domesticators has focused on Bronze Age people living on the Eurasian Steppe. Now, ancient DNA analysis bolsters the idea that a small group of hunter gatherers, called the Botai, were likely the first to harness horses, not the famous Yamnaya pastoralists, often thought to be the originators of the Indo-European language family.

 

Sarah also talks with news intern Katie Langin about her feature story on a single salmon gene that may separate spring and fall-run salmon. Conservationists, regulators, and citizens are fiercely debating the role such a small bit of DNA plays in defining distinct populations. Are the spring and fall runs different enough to both warrant protection?

 

This week’s episode was edited by Podigy.

 

Listen to previous podcasts.

  

[Image:  Jessica Piispanen/USFWS;Music: Jeffrey Cook]

 

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Authors: Sarah Crespi; Catherine Matacic; Katie Langin

Direct download: SciencePodcast_180511.mp3
Category:Science -- posted at: 1:59pm EDT