Big Picture Science for Mar 17, 2025: Amazing Arctic

What’s it like to live on a block of ice, especially when it thaws? An environment writer shares his forty-year experience in the Arctic, including the time a paddling polar bear tracked him on a river. He describes the stunning beauty of America’s last truly wild place and the dramatic changes to the landscape he recently witnessed. Recent research has backed up his eyewitness accounts, as an arctic scientist presents the latest data collected from a part of world warming four times faster than the rest of the planet.

Guests:

* Jon Waterman – Author of Into the Thaw: Witnessing Wonder Amid the Arctic Climate Crisis
* Twila Moon – Deputy Lead Scientist and Science Communication Liaison at the National Snow and Ice Data Center

Download podcast at - https://bigpicturescience.org/episodes/amazing-arctic

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Big Picture Science for Mar 10, 2025: Preventable

Two infectious diseases that we’ve been able to prevent for a half-century are re-emerging. One of the most contagious viruses in the world, measles, is spreading in the United States. Anti-vax sentiment has driven vaccination rates down leading to outbreaks in Texas and New Mexico. The U.S. has also seen an uptick in cases of tuberculosis which has reclaimed its position the deadliest infection globally. The author John Green shares how his travels to Sierra Leone inspired his new book about TB. Through the story of a young patient, Henry, he highlights the health inequities that contribute to over a million and a half tuberculosis deaths annually despite the existence of a cure.

Guests:

* Adam Ratner – Pediatric infectious disease doctor in New York City, and author of Booster Shots: The Urgent Lessons of Measles and the Uncertain Future of Children's Health
* John Green – Author of The Fault in Our Stars, The Anthropocene Reviewed, and Everything is Tuberculosis: The History and Persistence of our Deadliest Infection

Download podcast at - https://bigpicturescience.org/episodes/preventable

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Big Picture Science for Mar 03, 2025: Your Mind On Movies

REPEAT
By one estimate we spend a fifth of our lives watching movies or TV. In fact, we consume entertainment almost as habitually as we eat or sleep, activities that receive scientific scrutiny and study. So why not consider the effects that watching movies and TV have on our minds and bodies too? When we do, we find that they are not mere escapism. A data scientist reveals why we are what we watch, and how scientists and filmmakers work, often with competing agendas, to create sci-fi entertainment.

Guest:

* Walt Hickey - journalist, data scientist, and author of “You Are What You Watch: How Movies and TV Affect Everything”

This repeat podcast originally aired on January 8, 2024

Download podcast at - https://bigpicturescience.org/episodes/your-mind-on-movies

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Big Picture Science for Feb 24, 2025: The Latest Buzz

Big Picture Science: The Latest Buzz

REPEAT
Is your windshield accumulating less bug splatter? Insects, the most numerous animals on Earth, are becoming scarcer, and that’s not good news. They’re essential, and not just for their service as pollinators. We ask what’s causing the decrease in insect populations, and how can it be reversed.

Also, the story of how California’s early citrus crops came under attack – a problem that was solved by turning Nature on itself. And how chimpanzee “doctors” use insects to treat wounds.

We investigate the small and the many on “The Latest Buzz.”

Guests:

* Martin Kernan – Historian and journalist. His article, “The Bug That Saved California,” appeared in the January-February 2022 issue of the Smithsonian
* Alessandra Mascaro – Evolutionary Biologist, currently working at the Ozouga Chimpanzee Project, co-author of the Current Biology paper, “Application of insects to wounds of self and others by chimpanzees in the wild”
* Lara Southern – Doctoral student at the University of Osnabruck, co-author of the Current Biology paper, “Application of insects to wounds of self and others by chimpanzees in the wild”
* Oliver Milman – Environment correspondent for The Guardian in the U.S. and author of “The Insect Crisis: The Fall of the Tiny Empires that Run the World”

This repeat podcast originally aired on March 28, 2022

Download podcast at - https://bigpicturescience.org/episodes/the-latest-buzz

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Big Picture Science for Feb 17, 2025: Skeptic Check: Into the DeepSeek

When the Chinese developer of DeepSeek released its model R1, a rift opened up in Silicon Valley. The company, a relatively unknown player, appeared to have created a better and cheaper model than its American competitors. Some big voices in the tech world called it a “Sputnik moment.” Others worried that the open-source model would allow malicious actors to harness the power of this AI technology. But did the arrival of DeepSeek significantly change how artificial intelligence will unfold? We explore that question and ask whether one particular sci-fi franchise got it right when portraying our anxiety about runaway AI.

Guests:

* Alex Kantrowitz – Tech journalist and founder of the podcast and newsletter Big Technology
* Kristian Hammond – Professor of computer science at Northwestern University and Director of the Center for Advancing Safety of Machine Intelligence
* Dorian Lynskey – podcaster and author of “Everything Must Go: The Stories We Tell About the End of the World”

Download podcast at - https://bigpicturescience.org/episodes/skeptic-check-into-the-deepseek

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#AI #ArtificialIntelligence #DeepSeek
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Big Picture Science for Feb 10, 2025: Chasing an Asteroid

Everyone knows that a big rock wiped out the dinosaurs. But the danger from an asteroid hitting Earth is not limited to ancient history. To deal with this threat, scientists recently ran an experiment to deflect a potential “city killer.” We’ll hear the results of that experiment, and about a visit to another asteroid. In the dusty material NASA brought back from the asteroid Bennu, scientists found the chemical building blocks of life, including many of the amino acids that are found in our cells. Could an asteroid have brought the ingredients for life to ancient Earth? In this episode, we look at our paradoxical relationship with the space rocks that taketh way – and may help giveth - life.

Guests:

* Scott Sandford - Astrophysicist and Research Scientist at NASA’s Ames Research Center
* Robin George Andrews - Science journalist, volcanologist, and author of "How to Kill an Asteroid: The Real Science of Planetary Defense"

Download podcast at - https://bigpicturescience.org/episodes/chasing-an-asteroid

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for Feb 03, 2025: Coming to Our Animal Senses

REPEAT
Animals experience the world differently. There are insects that can see ultraviolet light, while some snakes can hunt in the dark thanks to their ability to sense infrared. Such differences are not restricted to vision: Elephants can hear subsonic sounds, birds navigate by magnetism, and your dog lives in a world marked by odors. In this episode, we speak to science journalist Ed Yong about how other creatures sense the world. Could we ever understand what it’s like to have the hearing of a bat or the sight of a hawk?

Guest:

* Ed Yong – Science writer for The Atlantic whose coverage of the COVID-19 pandemic earned him a Pulitzer Prize in explanatory journalism. He is the author of, “An Immense World: How Animal Senses Reveal the Hidden Realms Around Us.”

This repeat podcast originally aired on September 5, 2022

Download podcast at - https://bigpicturescience.org/episodes/coming-to-our-animal-senses

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Big Picture Science for Jan 27, 2025: Skeptic Check: Drone Panic

When several mysterious objects were spotted flying over New Jersey, their unknown identity led to frightening rumors, and triggered frustration and alarm among some residents of the Garden State. What were these objects, and if they were drones, as some appeared to be, were they friendly or foe? Many of the objects have now been identified. We talk about what happened when calmer heads prevailed and consider what the Great Drone Panic might have in common with other episodes involving objects cruising the skies. Also, why one expert thinks the event gave birth to a new UFO subculture.

Guests:

* Andrew Fraknoi - Professor of Astronomy at the Fromm Institute of the University of San Francisco
* Mick West - Investigator of conspiracy theories and UFO sightings
* Greg Eghigian - Professor of history and bioethics at Penn State and author of “After the Flying Saucers Came: A Global History of the UFO Phenomenon”

Download podcast at - https://bigpicturescience.org/episodes/skeptic-check-drone-panic

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for Jan 20, 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”

Download podcast at - https://bigpicturescience.org/episodes/best-things-life-are-trees

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Source: @Big Picture Science

They fill our lungs, give birth to stars, and show where we might get a good dinner with a glowing sign.

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