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Updated 28/03/2025

21 HR AGO

Sci-fi thriller combines aliens, robots, and Cherokee culture

Breaking news out of eastern Oklahoma! A hole in the sky has opened. Through it, an unidentified turtle-shaped craft has descended. Alerts say that this is first contact. So it goes in the sci-fi thriller “Hole in the Sky.” In the book, author Daniel H. Wilson imagines this moment where we meet alien life for the first time. It’s set in the heart of Cherokee Nation and follows characters including a military man, a NASA scientist, and a Cherokee father named Jim who is just trying to survive the alien entity. Wilson joins Flora for a conversation about the book and how he integrated elements of Cherokee culture with science fiction. They get into the ways we project our own fears—like genocide and slavery—onto aliens, and how science fiction helps us imagine the unimaginable. The SciFri Book Club is reading “Hole in the Sky” during May and June. Join us to read along! Read an excerpt from “Hole in the Sky.” Guest: Dr. Daniel H. Wilson is a Cherokee citizen and bestselling author of “Robopocalypse,” “Hole in the Sky,” and several other books. He holds advanced degrees in machine learning and robotics and lives in Portland, Oregon. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Want SciFri gear? Check out our new shop! Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

21 hr ago

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18 min
4 DAYS AGO

The decades-long movement to kill FEMA

Hurricane season officially begins in June. And in the event of a big storm, local and state governments often rely on help from the Federal Emergency Management Agency or FEMA. But, President Trump has questioned the value of the agency. “I've never been a big fan of FEMA. I like to keep it local. I like to see governors and neighboring states help each other as opposed to FEMA,” Trump said in March. We’ve heard this from the administration about other federal agencies, but FEMA is a special case. People have mistrusted this agency since its founding in the late 1970s. Host Flora Lichtman talks with Micah Loewinger, co-host of the show “On The Media,” who traced FEMA’s history in a new series called “American Emergency: The Movement to Kill FEMA.” Guest: Micah Loewinger is co-host of On The Media.Other episodes you may enjoy: As Disasters Escalate, What’s The Future Of FEMA? Can We Geoengineer Our Way Out Of A Natural Disaster? Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

4 days ago

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13 min
27 APR

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. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

27 Apr

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17 min
23 APR

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. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

23 Apr

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13 min
24 APR

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. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

24 Apr

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18 min
25 APR

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. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

25 Apr

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12 min
17 APR

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. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

17 Apr

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18 min
3 APR

Artemis II test flight heads toward the moon

On Wednesday, NASA’s Artemis II mission launched, kicking off on a roughly 10-day trip that will carry four astronauts around the moon and back to Earth. The flight is another test of the Space Launch System rocket and the Orion capsule that are intended to be used for an eventual crewed lunar landing. Space reporter Brendan Byrne joins Producer Kathleen Davis to share his impressions of the launch and what’s ahead for the Artemis program. Then, moon book author Rebecca Boyle joins the discussion to tackle an important listener question: What if Earth didn’t have a moon? Guests: Brendan Byrne is the host of the “Are We There Yet?” podcast, and assistant news director for Central Florida Public Media in Orlando, Florida. Rebecca Boyle is a science journalist and author of “Our Moon: How Earth's Celestial Companion Transformed The Planet, Guided Evolution, And Made Us Who We Are.” Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

3 Apr

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18 min
1 APR

How to poop better, according to a gastroenterologist

For many of us, what happens in the bathroom stays in the bathroom: According to a recent survey, 1 in 3 Americans are too embarrassed to talk about their poop or gut issues with their doctor. Gastroenterologists like Trisha Pasricha say that’s a problem, and that that stigma is getting in the way of our health and happiness. She joins Host Flora Lichtman to share some crucial gut knowledge, and talk about her new book, “You’ve Been Pooping All Wrong.” Read an excerpt from “You’ve Been Pooping All Wrong: How To Make Your Bowel Movements A Joy.” Guest: Dr. Trisha Pasricha is a physician-scientist at Beth Israel Deaconess Medical Center and assistant professor of medicine at Harvard Medical School in Cambridge, MA. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

1 Apr

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29 min
13 APR

Green stuff, brown stuff: Secrets to a great compost pile

If you’re a gardener, thinking about getting your soil in shape probably means thinking about compost. But composting can be a mysterious process. What can go into the pile? How do you balance carbon and nitrogen? And how do you do it in a city? Compost expert Cassandra Marketos joins Host Ira Flatow to break down the basics of what she calls “purposeful decomposition,” and give practical tips for the backyard composter. Read an excerpt from Marketos’ new book, “Compost after Reading.” Guest: Cassandra Marketos is the author of “Compost After Reading: A Practical Manifesto for Purposeful Decomposition.” Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-4-SCIFRI

13 Apr

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18 min

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