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Kanava • 22 ohjelmaa

Biotieteet

Biotieteet

Päivittäin
Visuaaliset taiteet

Visuaaliset taiteet

Päivitetty 09.08.2017
Päivittäiset uutiset

Päivittäiset uutiset

Päivittäin
Historia

Historia

Sarja
Musiikkihaastattelut

Musiikkihaastattelut

Viikoittain
Esittävät taiteet

Esittävät taiteet

Päivittäin
Politiikka

Politiikka

Päivitetty 18.11.2025

2 PV SITTEN

The long history of birds, from velociraptors to pigeons

Comparing a backyard sparrow to a fearsome velociraptor seems odd, but modern birds are indeed living dinosaurs. Scientists are finding more and more connections between the past physiology of dinos and the present physiology of birds. Joining Ira Flatow to talk about some forgotten species from the past tens of millions of years—think gorilla-sized penguins—is Steve Brusatte, paleontologist and author of “The Story of Birds: A New History from their Dinosaur Origins to the Present.” Read an excerpt from “The Story of Birds” Guest: Dr. Steve Brusatte is a paleontologist and author of “The Story of Birds: A New History from their Dinosaur Origins to the Present.” He’s based in Edinburgh, Scotland. Other episodes you may enjoy: Do Birds Sing In Their Dreams? Were Dinos On Their Way Out Before The Asteroid Hit? Maybe Not Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

2 pv sitten

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22 min
3 PV SITTEN

Your DNA is constantly mutating, and that’s a good thing

Our bodily systems are rife with mutations. In fact, your DNA is mutating right now. These errors, and attempts to repair them, are a key to understanding immune function, aging, and even how heart disease develops. Gene mutations can even mitigate the harm caused by some inherited diseases. Host Ira Flatow goes on a journey through the illuminating science of genetic mutations with Roxanne Khamsi, science writer and author of “Beyond Inheritance: Our Ever-Mutating Cells and a New Understanding of Health.” Guest: Roxanne Khamsi is a science writer and author of the book, “Beyond Inheritance: Our Ever-Mutating Cells and a New Understanding of Health.” Other episodes you may enjoy: How One Gene Affects Alzheimer’s Risk 65 Genomes Expand Our Picture Of Human Genetics Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

3 pv sitten

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17 min
1 PV SITTEN

What is ibogaine, and why is it in the news?

In mid-April, President Trump issued an executive order to set aside funding and loosen the bureaucratic process at the FDA to fast-track psychedelic therapy research. One obscure psychedelic got a particularly bright spotlight: ibogaine. Originating from the root bark of the iboga plant of central Africa, the psychedelic has shown promise for curbing opioid addiction and treating PTSD. But it also can be risky to take, and hasn’t made it to the medical mainstream like psilocybin or ketamine. So what’s the story with this drug? Joining Host Flora Lichtman to talk about its history is neurologist and pharmacologist Deborah Mash, who secured the first FDA approval for clinical trials involving ibogaine in the 1990s. And to tell us how it fits in with the growing interest in medical psychedelics is Jane Hu, journalist for The Microdose newsletter. (Disclosure: Deborah Mash is founder and CEO of a company that’s developing a therapeutic drug based on ibogaine.) Guests: Jane C. Hu is a journalist for the psychedelic science newsletter The Microdose, based in Seattle, WA. Dr. Deborah Mash is professor emeritus of neurology and molecular and cellular pharmacology at the University of Miami School of Medicine. She is the also founder and CEO of DemeRx. Other episodes you may enjoy: How One Gene Affects Alzheimer’s Risk Is This PTSD Treatment Too Good To Be True? Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

1 pv sitten

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19 min
20 T SITTEN

How do you study microplastics in a plastic-filled lab?

The news we hear about plastic is often alarming: We have a spoon’s worth of plastics in our brains, and there are microplastics in our hearts, lymph nodes, and bloodstreams. Plastics are ubiquitous, but the reality might be more complicated than it seems. It turns out that measuring microplastics is really, really difficult. One reason? Because we’re surrounded by plastics! Think of the pipettes and petri dishes and gloves we use in labs. Host Flora Lichtman chats with microplastics researcher Cassandra Rauert about the difficulties of studying plastics in the human body and what she’s doing about it—like how she designed a whole lab made almost entirely of stainless steel and glass. Guest: Dr. Cassandra Rauert is a senior research fellow studying microplastics exposure at the University of Queensland in Australia. Other episodes you may enjoy: Can algae help pull microplastics out of our water supply? Where Does Plastic And Other Trash Go After We Throw It Away? Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

20 t sitten

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11 min
6 PV SITTEN

What urban design tells us about democracy

The way ancient societies like the Greeks, Maya, and Khmer Empire built their cities can tell us a lot about how a place was governed. Did rulers live in ornate palaces or alongside other residents? Are there large, open spaces for community gatherings? In a new study, archaeologists document how they use the design of ancient temples, plazas, and cities to understand how a society was governed. So what does ancient architecture reveal about democracy? And do the democratic design principles hold true today? Host Flora Lichtman chats with anthropologist Jake Holland-Lulewicz about ancient democracies, and with archaeologist Jeff Hou about how the role of public spaces in democracies has changed. Guests: Dr. Jacob Holland-Lulewicz is an anthropologist and assistant professor at Penn State. Dr. Jeff Hou is the head of the architecture department at the National University of Singapore. Other episodes you may enjoy: Secrets Of Ancient Concrete, And… Data Centers In Space? One Crisis After Another: Designing Cities For Resiliency Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

6 pv sitten

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18 min
21.4.

The lucky breaks that make our Earth home

What makes Earth special, and why are we here at all? In his book “Why Do We Exist? The Nine Realms of the Universe That Make You Possible,” astrophysicist Hakeem Oluseyi tackles the conditions needed to put life on Earth, from the formation of stars, to self-organizing molecules, to quantum weirdness and the nature of time. He joins Host Flora Lichtman to celebrate our place in the cosmos. Read an excerpt from "Why Do We Exist?" Guest: Dr. Hakeem Oluseyi is an astrophysicist and author of “Why Do We Exist? The Nine Realms of the Universe that Make You Possible.” Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

21.4.

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18 min
5 PV SITTEN

Maine nearly became the first state to ban data centers

Data centers make controversial neighbors: They’re loud, they use a lot of water, and can drive electricity prices up. Following public concern and organizing efforts, Maine nearly implemented an 18-month ban on data center construction, before a governor veto. Joining Flora to talk about real changes communities can advocate for in regards to data centers are Pete McGuire, climate reporter at Maine Public, and Lauren Keeler, director of ASU’s Just Energy Transition Center. Guests: Pete McGuire is climate reporter at Maine Public. Dr. Lauren Keeler is an associate professor and director of the Just Energy Transition Center at Arizona State University. Other episodes you may enjoy: As Companies Build Data Centers For AI, Communities Push Back Secrets Of Ancient Concrete, And… Data Centers In Space? Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

5 pv sitten

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12 min
23.4.

Listening for the cosmic ‘dark ages,’ from the lunar far side

What did the universe look like before any stars turned on? Astronomers call that time the “dark ages,” and while they think it may be possible to see remnants of it in very low frequency radio signals, hearing those signals from Earth can be challenging. One possibility is to put a radio telescope on the far side of the moon, where it would have periods of observation shielded from interference both from Earth and from the sun—and potentially be able to receive that dark ages signal. The LuSEE-Night mission will explore that approach. A small demonstration radio telescope is slated for launch in late 2026 to serve as a proof of concept for low frequency radio astronomy on the lunar far side. Astronomer Anže Slosar, lead scientist for LuSEE-Night, joins Host Ira Flatow to describe the telescope project and what astronomers hope to achieve by sending it to the moon. Other episodes you may enjoy: CERN finds a new particle + News alerts for the cosmos 3D Images Of Galaxies Will Rock You (Ft. Queen) Guests: Dr. Anže Slosar is science lead for the LuSEE-Night project. He’s based at Brookhaven National Lab. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

23.4.

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13 min
27.3.

Move over, vibe-coding. Vibe-proving is here for math

When ChatGPT first came onto the scene, it wowed users with its writing abilities, but drew laughs for generating images of seven-fingered hands and struggling with basic math, where 2+2 didn’t always equal 4. But more recently, things have changed: Google and OpenAI’s models bagged gold medals at the International Mathematical Olympiad last year, and now some experts say AI could pose an existential threat to the field of mathematics itself. Mathematicians Emily Riehl and Daniel Litt join Host Flora Lichtman to explore how this technology could change the way math discoveries are made—and what could be lost if things go too far. Guests: Dr. Emily Riehl is a professor of mathematics at Johns Hopkins University in Baltimore, MD. Dr. Daniel Litt is an associate professor of mathematics at the University of Toronto. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

27.3.

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19 min
17.4.

How a particle accelerator illuminated 56 human organs

A new imaging technique using a particle accelerator is giving researchers an unprecedented level of detail of our organs, producing scans 100 billion times brighter than a CT scanner. Those 3D models are now part of a public database called the Human Organ Atlas, available to researchers and the medically curious. Joining Host Ira Flatow to explain why they needed so much power and what kind of research advances will follow is imaging scientist Claire Walsh, director of the Human Organ Atlas hub. Check out images from the Human Organ Atlas on our website. Guest: Dr. Claire Walsh is an associate professor at the UCL department of mechanical engineering and director of the Human Organ Atlas Hub. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

17.4.

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18 min

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