Big Picture Science

4.5 (913)
SCIENCE
UPDATED BIWEEKLY

The surprising connections in science and technology that give you the Big Picture. Astronomer Seth Shostak and science journalist Molly Bentley are joined each week by leading researchers, techies, and journalists to provide a smart and humorous take on science. Our regular "Skeptic Check" episodes cast a critical eye on pseudoscience.

22H AGO

Like Lightning

Every second, lightning strikes 50 to 100 times somewhere. It can wreak havoc by starting wildfires and sometimes killing people. But lightning also produces a form of nitrogen that’s essential to vegetation. In this episode, we talk about the nature of these dramatic sparks. Ben Franklin established their electric origin, so what do we still not know? Also, why the frequency of lightning strikes is increasing in some parts of the world. And, what to do if you find someone hit by lightning. Guests: Thomas Yeadaker – Resident of Oakland, California Chris Davis – Medical doctor and Assistant Professor of Emergency Medicine at Wake Forest University and Medical Director for the National Center for Outdoor Adventure Education Jonathan Martin –Professor of Atmospheric and Oceanic Sciences at the University of Wisconsin, Madison. Steve Ackerman – Professor of Atmospheric and Oceanic Sciences, University of Wisconsin, Madison Peter Bieniek – Professor of Atmospheric and Space Science, University of Alaska, Fairbanks Descripción en español Originally aired September 12, 2022 Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

54 min
JAN 26

Cold to Hot

The icy-white crust of Arctic permafrost is melting, and increased plant growth is turning the glacial north green. Metals like iron, once locked inside the ice, are leaching into hundreds of Arctic rivers, giving them an orange hue. Vivid changes may catch our eye, yet invisible shifts are also afoot. Microbes locked in the frozen ground since the age of the mammoths can now be revived when they thaw. We’re exploring the consequences of changes in permafrost, how AI may help us better understand Greenland ice loss, and get reactions from scientists about the Trump administration’s attempt to dismantle the National Center for Atmospheric Research (NCAR), one of the premier climate and weather researcher centers in the world. Guests: Tristan Caro – Postdoctoral Fellow, Geological and Planetary Sciences Division, California Institute of Technology Twila Moon – Glaciologist and deputy lead scientist at the National Snow and Ice Data Center, within the cooperative Institute for Research and Environmental Sciences at the University of Colorado Boulder. Abagael Pruitt – Biochemist and ecosystem ecologist, postdoctoral researcher at the University of California Davis Karina Zikan – Glaciologist and snow hydrologist, PhD candidate at Boise State University Roland Pease – Science writer and broadcaster often heard on the BBC World Service, and former presenter and host of its program Science in Action Alan Sealls – Retired broadcast meteorologist, adjust professor at the University of South Alabama and president of the American Meteorological Society Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

1 hr
JAN 19

Where the Wind Blows

It’s omnipresent on Earth and absent on the Moon. When it’s blowing sand in our eyes or frigid air down our necks, we may curse the wind, but living on a planet without it would be stultifying. Join us as we sail through a discussion with journalist and author Simon Winchester about the many practical and playful uses of wind – from boats to turbines to kites – and how it has shaped history, including the growth of civilization itself. Guest: Simon Winchester – Journalist and author of “The Breath Of The Gods: The History and Future of the Wind” Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

55 min
JAN 12

Life in the Solar System

Spewing lava and belching noxious fumes, volcanoes seem hostile to biology. But the search for life off-Earth includes the hunt for these hotheads on other moons and planets, and we tour some of the most imposing volcanoes in the Solar System. Plus, a look at how tectonic forces reshape bodies from the moon to Venus to Earth. And a journey to the center of our planet reveals a surprising layer of material at the core-mantle boundary. Find out where this layer was at the time of the dinosaurs and what powerful forces drove it deep below. Guests: Samantha Hansen – Geologist at the University of Alabama Paul Byrne – Associate professor of Earth and Planetary Sciences at Washington University in St. Louis Robin George Andrews – Science journalist and author of “Super Volcanoes: What They Reveal about Earth and the Worlds Beyond” Originally aired May 29, 2023 Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

54 min
JAN 5

Skeptic Check: Hypnosis

You are getting sleeeepy and open to suggestion. But is that how hypnotism works? And does it really open up a portal to the unconscious mind? Hypnotism can be an effective therapeutic tool, and some scientists suggest replacing opioids with hypnosis for pain relief. And yet, the performance aspect of hypnotism often seems at odds with the idea of it being an effective treatment. In our regular look at critical thinking, Skeptic Check, we ask what part of hypnotism is real and what is an illusion. Plus, we discuss how the swinging watch became hypnotism’s irksome trademark. Guests: David Spiegel – Professor of Psychiatry and Behavioral Sciences at the Stanford University School of Medicine Devin Terhune – Reader in the Department of Psychology, Goldsmiths University of London Originally aired June 27, 2002 Graphic by Shannon Rose Geary Featuring music by Dewey Dellay and Jun Miyake You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. Learn more about your ad choices. Visit megaphone.fm/adchoices

54 min
12/29/2025

Beyond the Periodic Table

You interact with about two-thirds of the elements of the periodic table every day. Some, like carbon, oxygen, and nitrogen, make up our bodies and the air we breathe. Yet there is also a class of elements so unstable they can only be made in a lab. These superheavy elements are the purview of a small group stretching the boundaries of chemistry. Can they extend the periodic table beyond the 118 in it now? Find out scientists are using particle accelerators to create element 120 and why they’ve skipped over element 119. Plus, if an element exists for only a fraction of a second in the lab, can we still say that counts as existing? Guests: Mark Miodownik – professor of materials and society at the University of College London and the author of “It’s a Gas: The Sublime and Elusive Elements That Expand Our World.” Kit Chapman – Science historian at Falmouth University, author of “Superheavy; Making and Breaking the Periodic Table.” Jennifer Pore – Research Scientist of Heavy Elements at Lawrence Berkeley National Laboratory. Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

56 min
12/22/2025

Movie Mayhem

Science fiction movies force us to face a multitude of end-of-the-world scenarios. Whether the final curtain is dropped by rampaging aliens, killer rocks from space, or virus-infected zombies, these big screen glimpses of a dystopian future are as tantalizing as they are frightening. But one American city seems to be a favorite backdrop for stories of mass destruction. We speak with a cultural critic about why New York City is often the chosen setting for disaster films, and what dystopian fiction reveals about our shifting anxieties about humanity’s future no matter where we live. Movies discussed include Deep Impact, Escape from New York, Planet of the Apes, King Kong, Cloverfield, Deluge, Failsafe, The Day After Tomorrow, AI: Artificial Intelligence, Contagion, I Am Legend, and Seth’s very own short film: The Turkey that Ate St. Louis Guest: Dan Saltzstein – Deputy Editor for Projects and Collaborations, New York Times Featuring music by Dewey Dellay and Jun Miyake Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

56 min
12/15/2025

The Best Things in Life are Tree(s)

While humans were leaving the Stone Age and entering the Bronze, some Bristlecone pine trees grew from seeds to sprouts. They’ve been growing ever since. These 5,000-year-old pines are among the oldest organisms on Earth. Superlatives are also appropriate for the towering redwoods. Trees are amazing in many ways. They provide us with timber and cool us with shade, they sequester carbon and release oxygen, and are home to countless species. But they are also marvels of evolutionary adaptation. We consider the beauty and diversity of trees, and learn why their future is intertwined with ours. Guests: Kevin Dixon - Naturalist at The East Bay Regional Park District, Oakland, California Daniel Lewis - Environmental historian and senior curator for the History of Science and Technology at the Huntington Library, art museum and botanical gardens in Pasadena, California, professor of the natural sciences and the environment at Caltech, and author of “Twelve Trees: The Deep Roots of our Future” Featuring music by Dewey Dellay and Jun Miyake Originally aired January 25, 2025 Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science. You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

58 min

See All (662)

Seth Shostak

Host
Molly Bentley

Host

4.5

out of 5

913 Ratings

Best podcast

12/10/2024

R be l.

I listen to about a dozen podcasts. Big picture Science is by far the most informative and entertaining
Intriguing & Educational

11/18/2024

ZosiaSar

Very balanced interviews with experts.
Favorite podcast!

11/17/2024

Jet3rry

This is my favorite podcast! Well organized, professionally produced, fascinating topics, clear, intelligent questions and discussions with knowledgeable and engaging experts. Molly and Seth guide the listener through what could be difficult topics but their thoughtful questions and discussions with”big picture” summaries present scientific insights in an enjoyable and understandable way, even for non-tech, non-scientists like me. Many thanks to everyone involved in sharing their knowledge via this podcast! A few dollars a month on Patreon to support this show is totally worth it but it’s free even if you choose not to donate.
Great science pod

10/23/2024

Dabbo4456

Interesting topics and questions, discussed intelligently.

The surprising connections in science and technology that give you the Big Picture. Astronomer Seth Shostak and science journalist Molly Bentley are joined each week by leading researchers, techies, and journalists to provide a smart and humorous take on science. Our regular "Skeptic Check" episodes cast a critical eye on pseudoscience.