Listener Christine wants to understand one of the strangest phenomena in the universe. But to get to grips with it, she’ll need a crash course in the bizarre behaviour of the very small. Here, things don’t act the way you might expect — and it’s famously hard to wrap your head around.
Anand Jagatia has assembled some of the sharpest minds in the field and locked them in a studio. No one’s getting out until Christine and Anand know exactly what’s going on. Or at least, that’s the plan.
On hand to help are Kanta Dihal, lecturer in science communication at Imperial College London; James Millen, King’s Quantum Director at King’s College London; and particle physicist Harry Cliff from the University of Cambridge.
Prepare to enter the world of the very small—and the very weird—where particles can be in two places at once, influence each other across vast distances, and seem to decide what they are only when observed. Hear how these once-theoretical oddities are now driving a technological revolution, transforming everything from computing to communication.
Presenter: Anand Jagatia
Producer: Harrison Lewis
Series Producer: Ben Motley
With the new Mission Impossible film playing in cinemas, the Unexpected Elements team is channelling Tom Cruise’s energy to see if scientists can push the boundaries of what is considered ‘impossible.’
First up, we fuse medieval alchemy with particle physics and explore a method to turn lead into gold. We then look at the latest research that uses artificial intelligence to help us humans communicate with animals.
We put the spotlight on a favourite trope of science-fiction films – time travel! String theorist Brian Greene of Columbia University explains how going to the past, or back to the future, may or may not be hypothetically possible.
We also ponder ancient auroras, whether ants can plan a Hollywood-style heist, and what it takes to understand our consciousness.
Presenter: Marnie Chesterton, with Affelia Wibisono and Andrada Fiscutean
Producer: Imaan Moin, with Alice Lipscombe-Southwell
Studio engineer: Mike Mallen
Depending on what time it is, your body responds differently to an injury or infection. During the day, you're likely to heal faster and fight infection better than at night. And historically, scientists weren't entirely sure why. That picture is starting to clear up thanks to a new study published last week in the journal Science Immunology. The research finds a missing piece of the puzzle in neutrophils, powerful immune cells that — despite living less than 24 hours — know the difference between day and night.
Got a question about how the body works? Let us know 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.
China is aiming to join the small club of nations who have successfully returned scientific samples of asteroids for analysis on earth, teaching us more about how our and potentially other solar systems formed. Tianwen-2 launched successfully this week, bound for an asteroid known as Kamo‘oalewa, which sits in a very strange orbit of both the earth and the sun, making it a “quasi-satellite”.
Last year, scientists including Patrick Michel of the Côte d'Azur Observatory in France, published an intriguing suggestion that Kamo‘oalewa might in fact not be a conventional asteroid, but instead be a small piece of our moon that was ejected when the Giordano Bruno crater formed. In a little over a year from now, we might find out if that is right.
Do you have to hold text at arm’s length to read properly? Qiang Zhang, professor of physics at the University of Science and Technology of China, whose team recently published their demonstration of using a technique from radio astronomy but using optical light. Active Optical Interferometry involves using laser beams to achieve resolutions at distances far in excess of conventional imaging with lenses. As his team showed, and as Miles Paggett of Glasgow University admires, they managed to read newsprint sized letters at a distance of over 1.3km.
Finally, how did the Inca Empire write things down, and who did the writing? It has been thought that ornate threads of strings and baubles known as khipu are how records were made for business and administration, probably by a decimal code of knots in strings. But the exact purpose, nature and any meaning encoded therein, has eluded scholars for decades. Sabine Hyland, an anthropologist at the University of St Andrews, Scotland, has been studying them for years, and recently was granted access to the records of a village, only the fourth known, to have continued a form of the khipu tradition after the Spanish conquest to this day. She believes that they could even provide us in the modern world with valuable climate data.
Presenter: Roland Pease
Producer: Alex Mansfield
Production co-ordinator: Jazz George
(A Long March-3B Y110 carrier rocket carrying China's Tianwen-2 probe blasts off from the Xichang Satellite Launch Center on 29 May, 2025 in Sichuan Province of China. Credit: VCG/Getty Images)
Around 40 million people around the world have bipolar disorder, which involves cyclical swings between moods: from depression to mania. Kay Redfield Jamison is one of those people. She's also a professor of psychiatry at the Johns Hopkins School of Medicine and has written extensively about the topic, from medical textbooks to personal memoirs. Today on Short Wave, she joins us to talk about the diagnosis process, treating and managing bipolar disorder.
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.
Got a question about mental health? Let us know at shortwave@npr.org.
Gen Z and younger millennials are the most climate literate generations the world has ever seen. They learned about climate change in school; now, it's part of how they plan for the future, including for jobs, housing ... and kids.
So, what do experts say about how to navigate the kid question? In this installment of Nature Quest, Short Wave speaks to climate journalist Alessandra Ram about the future she sees for her newborn daughter. Plus, how do we raise the next generation in a way that's good for the planet?
Got a question about changes in your local environment? Send a voice memo to shortwave@npr.org with your name, where you live and your question. You might make it into our next Nature Quest episode!
It's Memorial Day, Short Wavers. This holiday, we bring you a meditation on time ... and clocks. There are hundreds of atomic clocks in orbit right now, perched on satellites all over Earth. We depend on them for GPS location, Internet timing, stock trading and even space navigation. In today's encore episode, hosts Emily Kwong and Regina G. Barber learn how to build a better clock. In order to do that, they ask: How do atomic clocks really work, anyway? What makes a clock precise? And how could that process be improved for even greater accuracy?
- For more about Holly's Optical Atomic Strontium Ion Clock, check out the OASIC project on NASA's website. - For more about the Longitude Problem, check out Dava Sobel's book, Longitude.
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.
Have questions or story ideas? Let us know by emailing shortwave@npr.org!
The EPA has reportedly drafted a plan to eliminate all limits on greenhouse gas emissions from power plants, according to documents obtained by The New York Times. Now, with the rise of artificial intelligence technology, demand on power plants is increasing, in large part due to AI’s reliance on data centers. Ali Rogin speaks with Kenza Bryan, climate reporter for The Financial Times, for more. PBS News is supported by - https://www.pbs.org/newshour/about/funders
Sharks have been cast as the ultimate villain ever since the movie “Jaws” was released 50 years ago this summer. The film tells the story of a great white shark terrorizing beachgoers, but in reality, humans pose the greater threat to sharks. Ali Rogin speaks with endurance swimmer Lewis Pugh, who wants to get that message out by swimming around Martha’s Vineyard, where “Jaws” was filmed. PBS News is supported by - https://www.pbs.org/newshour/about/funders
CrowdScience listener Saoirse is vegan and doesn’t eat honey. But she’s been wondering - might honey actually have environmental benefits, by giving bee populations a boost?
To find out, presenter Anand Jagatia dons a bee suit and opens up some hives with biologist Dave Goulson, who reveals that there are over 20,000 bee species on earth – and not all of them need saving. Honeybee researcher Alison Mcafee talks about the importance of beekeeping for crop pollination, and why honeybee colonies around the world are collapsing. Although, as she explains, in some places beekeeping might actually be bad for endangered wild bees. We travel to Kenya to meet Loise Njeru and Lucy King, who show how the humble honeybee can be a powerful tool for conservation – helping to protect the mighty elephant. And, on a rooftop in London, former beekeeper Alison Benjamin explains how we can support the wild bee species that need our help.
Producer and presenter: Anand Jagatia
Location recording: Sophie Ormiston
Series Producer: Ben Motley
Production Co-ordinator: Ishmael Soriano
