Category: ScienceNews

On April 8, the moon will slip in front of the sun, blocking its light and creating an eerie twilight in the middle of the day. Stars will come out, the air will get cold, colors will dance around the horizon. It's a full-body experience born from the total solar eclipse that will be visible from North America. Today on the show, Regina G. Barber talks to NPR science correspondent Nell Greenfieldboyce about why some people say this experience is one of the most beautiful celestial events you can see – and how to prepare for it. Want more ways to enjoy the eclipse? Check out Regina's interview with an eclipse chaser on NPR's Life Kit podcast. Share your eclipse stories with us at shortwave@npr.org! We'd love to see it!

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How hard do we fight against information that runs counter to what we already think? While quantifying that may be difficult, Alex Edmans notes that the part of the brain that activates when something contradictory is encountered in the amygdala - “that is the fight-or-flight part of the brain, which lights up when you are attacked by a tiger. This is why confirmation can be so strong, it's so hardwired within us, we see evidence we don't like as being like attacked by a tiger.” 

In this Social Science Bites podcast, Edmans, a professor of finance at London Business School and author of the just-released May Contain Lies: How Stories, Statistics, and Studies Exploit Our Biases – And What We Can Do About It, reviews the persistence of confirmation bias -- even among professors of finance. 

“So, what is confirmation bias?” he asks host David Edmonds. “This is the temptation to accept something uncritically because we'd like it to be true. On the flip side, to reject a study, even if it's really careful, because we don't like the conclusions.” 

Edmans made his professional name studying social responsibility in corporations; his 2020 book Grow the Pie: How Great Companies Deliver Both Purpose and Profit was a Financial Times Book of the Year. Yet he himself encountered the temptation to both quickly embrace findings, even flimsy ones, that support our thesis and to reject or even tear apart research, even robust results, that doesn’t. 

While that might seem like an obviously critical thinking pitfall, surely knowing that it’s likely makes it easier to avoid. You might think so, but not necessarily. “So smart people can find things to nitpick with, even if the study is completely watertight,” Edmans details. “But then the same critical thinking facilities are suddenly switched off when they see something they like. So intelligence is, unfortunately, something deployed only selectively.” 

Meanwhile, he views the glut of information and the accompanying glut of polarization as only making confirmation bias more prevalent, and not less. 

Edmans, a fellow of the Academy of Social Sciences and former Fulbright Scholar, was previously a tenured professor at the Wharton Business School and an investment banker at Morgan Stanley. He has spoken to policymakers at the World Economic Forum and UK Parliament, and given the TED talk “What to Trust in a Post-Truth World." He was named Professor of the Year by Poets & Quants in 2021.  

For Guyana the potential wealth from oil development was irresistible — even as the country faces rising seas. Today on the show, host Emily Kwong talks to reporter Camila Domonoske about her 2021 trip to Guyana and how the country is grappling with its role as a victim of climate change while it moves forward with drilling more oil. (encore)

For more of Camila's reporting and pictures from her visit, check out "Guyana is a poor country that was a green champion. Then Exxon discovered oil."

Want to more about how countries around the world are grappling with climate change? Write us at shortwave@npr.org to let us know — your suggestion might become a future episode!

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We spend a lot of our time thinking about climate change, but listener Paul has a question that isn’t usually part of the conversation. He wants to know whether a hotter atmosphere will affect how often volcanoes erupt, or make them more explosive when they do.

CrowdScience travels to New Zealand to search for answers, exploring volcanic craters and discovering traditional Maori knowledge about volcanoes.

Contributors: Geoff Kilgour, Volcanologist, Geological and Nuclear Sciences Taupo, New Zealand Heather Handley, Volcanologist, University of Twente, The Netherlands Pouroto Ngaropo, Historian and Matauranga Māori expert, Rotorua, New Zealand

Presenter: Caroline Steel Producer: Emily Bird Editor: Cathy Edwards Production Co-Ordinator: Connor Morgans Sound Engineer: Steve Greenwood

(Photo: Icelandic volcano. Credit: KRISTINN MAGNUSSON/Getty Images)

Historic numbers of animals across the globe have become endangered or pushed to extinction. But some of these species sit in limbo — not definitively extinct yet missing from the scientific record. Rediscovering a "lost" species is not easy. It can require trips to remote areas and canvassing a large area in search of only a handful of animals. But new technology and stronger partnerships with local communities have helped these hidden, "uncharismatic" creatures come to light.

Have other scientific gray areas you want us to cover in a future episode? Email us at shortwave@npr.org!

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3000 light years from Earth, a white dwarf star called T Coronae Borealis is on the brink of a “once-in-a-lifetime” explosion. Astrophysicist Bradley Schaefer is enthusiastic about the bright star set to appear in the night sky in the coming months.

Professor Irving Weissman has been researching ways to restore youth using mouse models for decades. He has sewn old and young mice together to join their circulatory systems and has found that giving old mice blood from younger mice reverses some signs of ageing. In his group’s paper, the use of an antibody-based therapy has been shown to restore a declining immune system in ageing mice. Not quite the fountain of youth but potentially a key step in halting many age-related diseases. Roland gets the details from Irving and first-author Dr Jason Ross.

And, in the small town of Cabrières in Southern France, producer Ella Hubber goes on the hunt for some 480-million-year-old fossils with part-time fossil prospectors Eric and Sylvie Monceret. Their latest excavation site is a gold mine of rare, soft-bodied fossils from the period during a time when this part of France was underwater. And at the South Pole.

Presenter: Roland Pease Producer: Ella Hubber

(Photo: Illustration of the northern springtime constellations of Lyra, Hercules, Corona Borealis, and Bootes. Credit: Alan Dyer/Stocktrek Images)

Can you put a price on the perfect athlete? In baseball you can, and that’s a $700 million dollar contract. Shoehi Ohtani took to the field in Seoul for the LA Dodgers to prove that the big cheque was worth it.

It has Marnie asking – can you predict if one of your kids will become the G.O.A.T – the Greatest of All Time in any sport? She’ll also be investigating the other kind of goat – I'd say ordinary, but these ones are fighting wildfires.

We bring you the curious tale of a never-before-seen beach pebble washing up on the shores of a remote island. What are they? And get the lowdown on the most unpleasant sounding ultramarathons after a 40-year-old Scottish woman completes a race SO hard that only 20 people have finished .

Plus, gravitational waves, home-grown antivenom, and listening on double speed. Can your brain take it?

Presented by Marnie Chesterton, Phillys Mwatee and Camilla Mota.

Produced by Harrison Lewis with Tom Bonnett, Jack Lee and Cath Mcghee.

According to the CDC, about one in four adults has a fear of needles. Many of those people say the phobia started when they were kids. For some people, the fear of needles is strong enough that they avoid getting important treatments, vaccines or tests. That poses a serious problem for public health. Researchers have helped develop a five step plan to help prevent what they call "needless pain" for kids getting injections or their blood drawn. Guest host Tom Dreisbach talks with Dr. Stefan Friedrichsdorf of UCSF Benioff Children's Hospitals, who works with a team to implement the plan at his own hospital. Friedrichsdorf told us some of the most important research on eliminating pain has come from researchers in Canada. Learn more about their work here.

This episode was inspired by the reporting of our colleague April Dembosky, a journalist at member station KQED and KFF Health News. Read her digital story here.

Got another question for a doctor? Email us at shortwave@npr.org.

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Few humans have had the opportunity to see Earth from space, much less live in space. We got to talk to one of these lucky people — NASA astronaut Loral O'Hara. She will soon conclude her nearly seven month stay on the International Space Station.

Transmitting from space to your ears, Loral talks to host Regina G. Barber about her dreams in microgravity, and her research on the ISS: 3D-printing human heart tissue, how the human brain and body adapt to microgravity, and how space changes the immune systems of plants.

Have questions you want us to send to outers pace? Email us at shortwave@npr.org!

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Many of us have habits that calm us down in times of stress. Things we find deeply comforting, like sucking our thumb or biting our nails. We might not even be aware we’re doing them, but they play a fundamental role in helping us regulate our emotions.

Our question this week comes from CrowdScience listener and nail-biter, Ash. He wants to know where these habits come from. And since his pet dog is also a nail-biter: do we share these traits with other animals?

Recently, a video of a mouse cleaning up a man’s shed took the internet by storm. Was this a house-proud mouse, or was it the animal's way of making sense of a frenetic environment? An emerging field of scientists focusing on animal behaviour and emotions help us shed some light on such questions.

Along the way we meet a dog training specialist, learn what a sniffari is, go for playtime with a thumb-sucking otter, and visit an OCD clinic. We’ll also be getting tips on how to give your pets the best home environment, and meet an animal enrichment officer in South Africa, who knows how to spot the signs of an unhelpful habit developing.

Contributors: Karolina Westlund, Ethologist, Stockholm University and ILLIS Ben Terry, CBT Therapist, Priory Hospital North London Karin Pienaar, Animal Behaviourist, COAPE International Candice Ward, Animal Behaviourist, Johannesburg Zoo

Jaak Panksepp clip: The science of emotions: Jaak Panksepp at TEDxRainier

Producer: Robbie Wojciechowski Presenter: Alex Lathbridge Editor: Cathy Edwards Production co-ordinator: Connor Morgans Additional recording by Elna Schutz

(Photo: Portrait of border collie puppy biting a curtain. Credit: Rawlstock/Getty Images)