Category: ScienceNews

Teppei Katori loves two things: particle physics and music. Naturally, he combined the two. Today on Short Wave, Teppei talks to host Regina G. Barber about how he and his collaborators convert data from cosmic rays—high energy particles from space that are constantly colliding with Earth—into beautiful sights and sounds.

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In the Global North, media and political depictions of migration tend to be relentless images of little boats crossing bodies of water or crowds of people stacking up at a dotted line on a map. These depictions presume two things – that this is a generally comprehensive picture of migration and that, regardless of where you stand, the situation around migration is relatively dire.

Enter Heaven Crawley, who heads equitable development and migration at United Nations University Centre for Policy Research. She also holds a chair in international migration at Coventry University’s Centre for Trust, Peace and Social Relations, and directs the South-South Migration, Inequality and Development Hub since 2019, a project supported by UK Research and Innovation’s Global Challenges Research Fund. From her perch, spanning government, academe and field research, she says confidently in this Social Science Bites podcast that international migration “is not an entirely positive story, but neither is it an entirely negative one. What we’re lacking in the media conversation and in the political discussion is any nuance.”

Connecting nearly all the regional debates about migration “is the lack of an honest conversation about what migration is and what it has been historically. It has historically been the very thing that has developed the societies in which we live, and it is something on which the clock cannot be turned back.

“And none of us, frankly, if migration was to end tomorrow, would benefit from that.”

Trying to bring a clear eye to the debate, she explains to host David Edmonds that roughly 3.6 percent of the world’s population, or 280 million people, could be considered migrants. Of that, about 32 million fit under the rubric of “refugee.” And while the sheer number of Migrants is growing, the percentage of the world’s population involved has been “more or less the same” last three decades.  

And while this might surprise European listeners, almost 40 percent of migration originates from Asia-- mostly India, Pakistan and Bangladesh -- followed by Mexico. There is a lot of migration from African countries, Crawley notes, which gibes with European media, but most of that migration isn’t to Europe, but within the African continent.

Who are these migrants? Overall, she says, most people who move are less than 45. Nonetheless, “the gender, the age really depends on the category you’re looking at and also the region you are looking at.” Generalizations about their qualifications can be fraught: low-skills migrants ready to fill so-called “dirty, difficult and dangerous jobs” and high-skill migrants draining out their country’s brains can often depart from the same nation.

Crawley agrees that migration currently is a politically potent wedge issue, but she notes it has been in the past, too. She suggests that migration per se isn’t even the issue in many migration debates. “A whole set of other things are going on in the world that people find very anxiety-producing” – rapid changes in society drawing from security, economy, demographics, and more, all against a backdrop of “migration simultaneously increasing (in the number of people on the move, not the proportion) and the variety of people also increasing.”

This creates an easy out for policymakers, she says. “Politicians know that if they’ve got problems going on in society, it’s very easy to blame migration, to blame migrants. It really is a very good distraction from lots of other problems they really don’t want to deal with.”

This is also why, she suggests, that responses such as deterrence are more popular than more successful interventions like addressing the inequalities that drive migration in the first place.

Crawley’s career saw her sit as head of asylum and migration research at the UK Home Office, serve three separate times as a specialist adviser to the UK Parliament’s Home Affairs Committee and Joint Committee on Human Rights, and be associate director at the Institute for Public Policy Research. In 2012, in recognition of her contribution to the social sciences and to evidence-based policymaking, she was named a fellow of Britain’s Academy of Social Sciences.

Dinosaurs ruled the earth for many millions of years, but only after a mass extinction took out most of their rivals. Just how that happened remains a mystery — sounds like a case for paleoclimatologist Celina Suarez! This encore episode, Suarez walks us through her scientific detective work, with a little help from her trusty sidekick, Scientist in Residence Regina G. Barber.

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CrowdScience listener Nyankami, from Kenya, has a friend with dementia. Despite memory loss and no longer knowing his way around, his friend has no problem communicating. So what’s the connection between memory and language?

Caroline Steel discovers how dementia affects our speech. In most cases the illness does have an impact on our ability to speak but it can depend on many factors, including the type of dementia and even how many languages we speak.

She meets George Rook, diagnosed with vascular dementia and Alzheimer’s, who’s a passionate campaigner for people with dementia and talks to dementia nurse Helen Green, who explains how the illness can affect our behaviour.

She discovers that speaking more than one language can actually protect our brains from decline and finds out about cutting edge research that is helping people with dementia to improve their memory and capacity to speak.

Featuring: George Rook, Lived Experience Advisory Panel, Dementia UK Helen Green, Admiral Nurse, specialising in dementia Professor Alex Leff, Professor of Cognitive Neurology, Institute of Neurology, University College London Professor Guillaume Thierry, Professor of Cognitive Neuroscience, Bangor University Professor Yan Jing Wu, Professor of Neurolinguistics, Ningbo University, China Dr Elizabeth Kuhn, Post-Doctoral Fellow, German Centre for Neurodegenerative Disease, Bonn

Image Credit: Emma Innocenti

Presenter: Caroline Steel Producer: Jo Glanville Editor: Richard Collings Production co-ordinator: Jonathan Harris Sound engineer: Jackie Margerum

This week's science news roundup reunites All Things Considered host Ailsa Chang with Short Wave hosts Emily Kwong and Regina G. Barber to dig into the latest headlines in biomedical research, also known as cool things for the human body. We talk new RSV vaccines, vaccination by sticker and a new device helping a man with paralysis walk again.

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The California Condor has been brought back from the brink of extinction by dedicated conservation efforts over the past 30 years. Now, this critically endangered species is the latest victim of the H5N1 bird flu which is racing round the world. California Condor co-ordinator Ashleigh Blackford and wildlife veterinarian Dr Samantha Gibbs from the US Fish and Wildlife Service discuss their last-ditch efforts to vaccinate the birds against H5N1.

Huge 40,000 km plumes of water ice have been imaged erupting from Saturn’s moon Enceladus. Dr Sara Faggi, a postdoctoral Researcher in the Solar System Division at Nasa Goddard Space Flight Center, dives into this incredible new observation from the James Webb Space Telescope.

Dr Pierre Galand from France’s Observatoire Océanologique de Banyuls has been part of a two-and-a-half-year expedition to sample the microorganisms in coral reefs across the world. His new research shows that this tiny life is much more diverse than previously understood and may be essential to life of the coral reefs. And, much deeper in the Ocean, researchers estimate that there are over 5000 unnamed species in the world’s largest mineral exploration region, the Clarion-Clipperton Zone. Muriel Rabone, data and sample co-ordinator, and Dr Adrian Glover, merit researcher, both from the Natural History Museum in London, talk to Roland about this region of stunning biodiversity and the hope to protect it.

Presenter: Roland Pease Producer: Ella Hubber Editor: Richard Collings

(Photo: An adult and juvenile California condor. Credit: Loi Nguyen)

Human migration is in the headlines again – India and Australia have announced a new migration deal, in the US a Covid-inspired policy that allowed migrants to be quickly expelled has come to an end, and in the UK new measures were announced to stop foreign students bringing families with them, in a bid to reduce migration figures.

But what does science tell us about migration? With a team across three continents, we’re looking at the origins of human migration and exploring some of the greatest migrations in the animal kingdom. We discover that migrating birds are more like migrating humans than you might think, and learn how even the ground beneath our feet is trying to move somewhere else.

We’re also introduced to the real life people labelling images that inform the algorithms behind AI, a researcher with a wall of wind makes a bid for The Coolest Science in the World, we find out why tiles are colder than carpets and we dig deeper into the news that a company founded by Elon Musk has been given the go-ahead to trial a ‘brain-machine interface’.

Presenter: Marnie Chesterton Producers: Margaret Sessa Hawkins & Ben Motley

Ice in Antarctica is melting really quickly because of climate change. That's driving sea level rise around the world, and the water is rising especially fast in the seaside city of Galveston, Texas — thousands of miles from Antarctica. Why do Antarctica and Texas have this counterintuitive relationship? And what does it mean for a $34 billion effort to protect the city from hurricanes?

Read more and see pictures and video from Antarctica here.

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Mora Leeb was 9 months old when surgeons removed half her brain. Now 15, she plays soccer and tells jokes. Scientists say Mora is an extreme example of a process known as brain plasticity, which allows a brain to modify its connections to adapt to new circumstances.

Read more of Jon's reporting.

Science in your everyday got you puzzled? Overjoyed? We've love to hear it! Reach us by emailing shortwave@npr.org.

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It may seem like a simple question but could you explain why the earth revolves around the sun? That is what listener Josh from New York wants to know. For much of human history we thought everything revolved around us, literally. So how did humans come to the conclusion that we're not the centre of the universe? And how did the scientific process help us uncover the true order of things?

Looking through telescopes from the vantage point of Australia, host Caroline Steel speaks with astronomers and physicists about the bumpy scientific journey to arrive at this discovery that we now take for granted. Delving into Indigenous astronomy with researcher Peter Swanton, Caroline questions whether Western scientists were really the first ones to grasp this understanding of our solar system.

And at the Sydney Observatory, stellar astrophysicist Devika Kamath and Sydney Observatory host Nada Salama show Caroline some of the clues up in the sky that astronomers in the 1600s used to deduce that there was something wrong with earlier models of our solar system.

Rhett Allain from Southeastern Louisiana University helps break down the physics concepts at play when it comes to the motion of our planets and the sun.

Through her exploration of a seemingly simple question, Caroline asks some big questions as she looks up to the stars – about life, the universe, and the nature of science itself.

Producer: Sam Baker Presenter: Caroline Steel Editor: Richard Collings Production co-ordinator: Jonathan Harris

Featuring: Devika Kamath, Astrophysicist, Macquarie University Rhett Allain, Associate Professor, Southeastern Louisiana University Peter Swanton, Indigenous Research Associate, Australian National University

(Photo: Caroline and Devika, Sydney Observatory)