Short Wave - Could this vaccine trial mean a future without HIV?

Early last year, a hundred researchers, clinicians and other experts on HIV discussed the development of an innovative vaccine that could prevent the disease. But just as the meeting was about to wrap up, the mood darkened. A new executive order signed by President Trump on Inauguration day had frozen all foreign aid, pending a review. Soon, DOGE would begin its decimation of USAID — and with it, this vaccine trial. That is – until the South African researchers came up with a new plan. 

Read more of freelance science reporter Ari Daniel’s story here.

Interested in more on the future of science? Email us your question at shortwave@npr.org.

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CrowdScience - Can we cancel light waves?

Noise cancelling headphones filter out sound waves that we don’t want to hear. Listener Ahmed in Libya loves wearing his and, as he was listening to them, he had a thought: ‘Could we cancel out light waves in a similar way to how noise cancelling headphones do it?’

He sent his question to CrowdScience and now presenter Alex Lathbridge is getting deep into the physics, to find out if light cancelling devices could replace curtains and shutters.

Alex starts at the Ray Dolby Centre in Cambridge in the UK, built to honour Ray Dolby’s invention of noise cancelling technology. In this amazing building he meets Jeremy Baumberg, Professor of Nanophotonics at Cambridge University. With the help of a tuning fork and a laser beams, Jeremy shows Alex that manipulating light is no easy feat.

Undeterred, Alex tracks down Stefan Rotter, Professor of Theoretical Physics at Vienna Technical University in Austria. Stefan and his colleagues around the world have been pushing forward the development of a device called the ‘anti-laser’. Alex and Stefan explore whether this could be the light-cancelling device of Ahmed’s imagination.

And once we've created a light-cancelling device, what do we do with it? Mary Lou Jepsen is an inventor and the founder of health tech firm Openwater. She tells Alex about how she’s using light wave manipulation to open up new possibilities for medical imaging, and even treatment.

This programme includes clips from: Surrounded by Sound: Ray Dolby and the Art of Noise Reduction https://www.bbc.co.uk/programmes/m002bswq CrowdScience: Can we trap light in a box? https://www.bbc.co.uk/programmes/w3cswvwy

Presenter: Alex Lathbridge

Producer: Tom Bonnett

Editor: Ben Motley

(Photo: Eyesight and vision concept - stock photo Credit: J Studios / Getty Images)

Unexpected Elements - Are you lucky?

K-pop fans in Taiwan have been turning to the God of love in the hope it will boost their luck in getting concert tickets. It got the Unexpected Elements team thinking, are some people just lucky?

First, we look at how music resonates in the brain and why listening to it live can feel more emotional. Also, can we measure how lucky we are? We look at a possible formula, and how you can increase your chances of striking on a lucky event.

We’re then joined by Professor of Marketing Marco Bertini, who explains the wild west of dynamic pricing and gives us some tips and tricks along the way. Plus we hear about Kenya’s ambitious plans to integrate traditional medicine into its health system.

And finally, why we dance when we pee and the Great British art of queuing. That’s all on this week’s Unexpected Elements.

Presenter: Marnie Chesterton, with Phillys Mwatee and Imaan Moin Producers: Margaret Sessa-Hawkins, with Ella Hubber, Lucy Davies, Imy Harper and Tim Dodd

Unexpected Elements - Are you lucky?

K-pop fans in Taiwan have been turning to the God of love in the hope it will boost their luck in getting concert tickets. It got the Unexpected Elements team thinking, are some people just lucky?

First, we look at how music resonates in the brain and why listening to it live can feel more emotional. Also, can we measure how lucky we are? We look at a possible formula, and how you can increase your chances of striking on a lucky event.

We are then joined by professor of marketing Marco Bertini, who explains the wild west of dynamic pricing and gives us some tips and tricks along the way. Plus we hear about Kenya’s ambitious plans to integrate traditional medicine into its health system.

And finally, why we dance when we pee and the Great British art of queuing. That’s all on this week’s Unexpected Elements.

Presenter: Marnie Chesterton, with Phillys Mwatee and Imaan Moin Producer: Margaret Sessa-Hawkins, with Ella Hubber, Lucy Davies, Imy Harper and Tim Dodd

Short Wave - Why do we kiss? It’s an evolutionary conundrum

The evolutionary purpose of kissing has long eluded scientists. Smooching is risky, given things like pointy teeth, and inherently gross, given an estimated 80 million bacteria are transferred in a 10 second kiss. And yet, from polar bears to humans, albatrosses and prairie dogs, many animals kiss. So, what gives? Evolutionary biologist Matilda Brindle tells us the sordid details driving this behavior, what distinguishes different kinds of kissing and whether culture has anything to do with why people kiss.

Interested in more of the science behind love and connection? Email us your question at shortwave@npr.org.


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PBS News Hour - Science - Despite setback, researchers uncover new findings at Antarctica’s Thwaites Glacier

As Trump pulls back from regulations on climate change, many scientists remain worried about the warming of the oceans, melting glaciers and sea level rise. Science correspondent Miles O'Brien has been reporting from Antarctica on a mission to understand what's happening there. In his last report from the Thwaites Glacier, he looks at other key research projects that have been part of that trip. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy

Short Wave - AI is great at predicting text. Can it guide robots?

It seems like artificial intelligence is everywhere in our virtual lives. It's in our search results and our phones. But what happens when AI moves out of the chat and into the real world? NPR science editor and correspondent Geoff Brumfiel took a trip to the Intelligence through Robotic Interaction at Scale Lab at Stanford University to see how scientists are using AI to power robots and the large hurtles that exist for them to perform even simple tasks. (encore)

Read Geoff's full story.


Interested in more AI stories? Email us your ideas at shortwave@npr.org.Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.


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Short Wave - The physics of the Winter Olympics

Watching a ski jumper fly through the air might get you wondering, “How do they do that?” The answer is – physics!

That’s why this episode, we have two physicists – Amy Pope, a physicist from Clemson University and host Regina G. Barber – break down the science at play across some of the sports at the 2026 Winter Olympics. Because what’s a sport without a little friction, lift and conservation of energy? They also get into the new sport this year, ski mountaineering - or “skimo” as many call it - and the recent scandal involving the men’s ski jump suits. 

Interested in more science behind Olympic sports? Check out our episodes on how extreme G-forces affect Olympic bobsledders, the physics of figure skating and the science behind Simone Biles' Olympic gold


Also, we’d love to know what science questions have you stumped. Email us your questions at shortwave@npr.org – we may solve it for you on a future episode!


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Short Wave - These bacteria may be key to the fight against antibiotic resistance

In 1928, a chance contaminant in Scottish physician Alexander Fleming’s lab experiment led to a discovery that would change the field of medicine forever: penicillin. Since then, penicillin and other antibiotics have saved millions of lives. With one problem: the growing threat of antibiotic resistance. Today on Short Wave, host Regina G. Barber talks to biophysicist Nathalie Balaban about the conundrum — and a discovery her lab has made in bacteria that could turn the tides.


Check out our episodes on extreme bacteria in Yellowstone and the last universal common ancestor


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


Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.


This episode was produced by Berly McCoy, edited by our showrunner Rebecca Ramirez and fact checked by Tyler Jones. Jimmy Keeley was the audio engineer.

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PBS News Hour - Science - How sports betting is changing our brains and behavior

Americans are expected to place a record-breaking $1.7 billion in legal bets on the Super Bowl. With a potential casino inside every phone and computer, a rising chorus of experts who study problem gambling and addiction are ringing the alarm. Horizons moderator William Brangham explores this tidal shift in American culture with journalist Danny Funt and addiction psychiatrist Dr. Timothy Fong. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy