Épisodes

  • Antonio Padilla, "Fantastic Numbers and Where to Find Them: A Cosmic Quest from Zero to Infinity" (FSG,2022)

    Antonio Padilla, "Fantastic Numbers and Where to Find Them: A Cosmic Quest from Zero to Infinity" (FSG,2022)
    Feb 15 2026
    A fun, dazzling exploration of the strange numbers that illuminate the ultimate nature of reality. For particularly brilliant theoretical physicists like James Clerk Maxwell, Paul Dirac, or Albert Einstein, the search for mathematical truths led to strange new understandings of the ultimate nature of reality. But what are these truths? What are the mysterious numbers that explain the universe?In Fantastic Numbers and Where to Find Them: A Cosmic Quest from Zero to Infinity (FSG,2022), the leading theoretical physicist and YouTube star Antonio Padilla takes us on an irreverent cosmic tour of nine of the most extraordinary numbers in physics, offering a startling picture of how the universe works. These strange numbers include Graham’s number, which is so large that if you thought about it in the wrong way, your head would collapse into a singularity; TREE(3), whose finite nature can never be definitively proved, because to do so would take so much time that the universe would experience a Poincaré Recurrence—resetting to precisely the state it currently holds, down to the arrangement of individual atoms; and 10^{-120}, measuring the desperately unlikely balance of energy needed to allow the universe to exist for more than just a moment, to extend beyond the size of a single atom—in other words, the mystery of our unexpected universe.Leading us down the rabbit hole to a deeper understanding of reality, Padilla explains how these unusual numbers are the key to understanding such mind-boggling phenomena as black holes, relativity, and the problem of the cosmological constant—that the two best and most rigorously tested ways of understanding the universe contradict one another. Fantastic Numbers and Where to Find Them is a combination of popular and cutting-edge science—and a lively, entertaining, and even funny exploration of the most fundamental truths about the universe. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 h et 6 min
  • Jennifer Vail, "Friction: A Biography" (Harvard UP, 2026)

    Jennifer Vail, "Friction: A Biography" (Harvard UP, 2026)
    Feb 3 2026
    Friction, the force that resists motion, is synonymous with difficulty and complication. If you’ve ever replaced tires worn smooth by the road or reached for a can of WD-40 to fix a creaking door hinge, then you know the headache this force can cause. In Friction: a Biography (Harvard UP, 2026), Dr. Jennifer Vail reveals beneath the difficulty and complication a force as enigmatic and intriguing as it is central to the human story. She traces how, from the moment we first harnessed the power of fire to the Industrial Revolution and beyond, the quest to manipulate friction has driven innovation, culture, and even our own evolution. Today, as scientists study friction in the most unexpected of places, they’re learning why some viruses lie dormant for years while others devastate our cells immediately; where elusive dark matter might be found; and how the climate crisis ought finally be addressed. And yet, for all they’ve learned, scientists still haven’t cracked the greatest mystery of all: how to bridge the distinct laws that govern friction at its largest and smallest scales. Connecting the discoveries of historical luminaries like Newton, da Vinci, and the Wright brothers to the latest breakthroughs in engineering, Friction is a captivating biography of this unsung hero of the physical world. This interview was conducted by Dr. Miranda Melcher whose book focuses on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars. You can find Miranda’s interviews on New Books with Miranda Melcher, wherever you get your podcasts. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    34 min
  • Dagomar Degroot, "Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System" (Harvard UP, 2025)

    Dagomar Degroot, "Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System" (Harvard UP, 2025)
    Jan 13 2026
    Our solar system is a dynamic arena where asteroids careen off course and solar winds hurl charged particles across billions of miles of space. Yet we seldom consider how these events, so immense in scale, influence our fragile blue planet: Earth. In Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System (Harvard UP, 2025), Dagomar Degroot traces the surprising threads linking human endeavor to the rest of the solar system. He reveals how variability in planetary environments has shaped geopolitics, spurred scientific and cultural innovation, and encouraged new ideas about the emergence and fate of life. Martian dust storms altered the trajectory of the Cold War and inspired fantastical stories about alien civilizations. Comet impacts on Jupiter led to the first planetary defense strategy. And volcanic eruptions spewed sulfuric acid into Venus's atmosphere, exposing the existential risks of climate change at home. As we stand on the brink of a new era of space settlement, cosmic environments are becoming increasingly vulnerable to human activity. They may also hold the key to slowing the destruction of environments on Earth. Ripples on the Cosmic Ocean urges us to develop an interplanetary environmentalism across a vast mosaic of entangled worlds and to consider the profound connections that bind us to the cosmos and each other. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 h et 16 min
  • Heino Falcke and Jörg Römer, "Light in the Darkness: Black Holes, the Universe, and Us" (HarperCollins, 2021)

    Heino Falcke and Jörg Römer, "Light in the Darkness: Black Holes, the Universe, and Us" (HarperCollins, 2021)
    Jan 9 2026
    An astrophysicist chronicles his quest to photograph a black hole and reflects on its spiritual ramifications in this international-bestselling memoir. On April 10, 2019, award-winning astrophysicist Heino Falcke presented the first image ever captured of a black hole at an international press conference—a turning point in astronomy that Science magazine called the scientific breakthrough of the year. That photo was captured with the unthinkable commitment of an intercontinental team of astronomers who transformed the world into a global telescope. While this image achieved Falcke's goal in making a black hole "visible" for the first time, he recognizes that the photo itself asks more questions for humanity than it answers.Light in the Darkness takes us on Falcke's extraordinary journey to the darkest corners of the universe. From the first humans looking up at the night sky to modern astrophysics, from the study of black holes to the still-unsolved mysteries of the universe, Falcke asks, in even the greatest triumphs of science, is there room for doubts, faith, and a God? A plea for curiosity and humility, Light in the Darkness sees one of the great minds shaping the world today as he ponders the big, pressing questions that present themselves when we look up at the stars. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 h et 14 min
  • Jeremy Bernstein 11–2007

    Jeremy Bernstein 11–2007
    Dec 10 2025
    In this episode from the Institute’s vault, we revisit an October 2007 presentation by theoretical physicist and Institute Fellow Jeremy Bernstein on J. Robert Oppenheimer, the atomic bomb, and the nuclear arms race that followed. As a physicist, Bernstein made contributions to elementary particle physics and cosmology, working at the Institute for Advanced Study in Princeton, New York University, and Stevens Institute of Technology, where he became Professor Emeritus in 1967. He held visiting positions at CERN, Oxford, and the École Polytechnique, among others, and was the last surviving senior member of Project Orion, which studied the potential of nuclear pulse propulsion for space travel. Bernstein was a staff writer for The New Yorker for over three decades. He wrote regularly for The New York Review of Books, The Atlantic Monthly, and Scientific American, and authored over two dozen books, including Oppenheimer: Portrait of an Enigma (2004). He passed away on April 20th, 2025 at the age of 95. Here he is in 2007, discussing the topics on which he made a great contribution and helped illuminate. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    44 min
  • Jon Willis, "The Pale Blue Data Point: An Earth-Based Perspective on the Search for Alien Life" (U Chicago Press, 2025)

    Jon Willis, "The Pale Blue Data Point: An Earth-Based Perspective on the Search for Alien Life" (U Chicago Press, 2025)
    Dec 3 2025
    A thrilling tour of Earth that shows the search for extraterrestrial life starts in our own backyard.Is there life off Earth? Bound by the limitations of spaceflight, a growing number of astrobiologists investigate the question by studying life on our planet. Astronomer and author Jon Willis shows us how it’s done, allowing readers to envision extraterrestrial landscapes by exploring their closest Earth analogs in The Pale Blue Data Point: An Earth-Based Perspective on the Search for Alien Life (U Chicago Press, 2025). With Willis, we dive into the Pacific Ocean from the submersible-equipped E/V Nautilus to ponder the uncharted seas of Saturn’s and Jupiter’s moons; search the Australian desert for some of Earth’s oldest fossils and consider the prospects for a Martian fossil hunt; visit mountaintop observatories in Chile to search for the telltale twinkle of extrasolar planets; and eavesdrop on dolphins in the Bahamas to imagine alien minds.With investigations ranging from meteorite hunting to exoplanet detection, Willis conjures up alien worlds and unthought-of biological possibilities, speculating what life might look like on other planets by extrapolating from what we can see on Earth, our single “pale blue dot”—as Carl Sagan famously called it—or, in Willis’s reframing, scientists’ “pale blue data point.” Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 h et 19 min
  • Andrew H. Jaffe, "The Random Universe: How Models and Probability Help Us Make Sense of the Cosmos" (Yale UP, 2025)

    Andrew H. Jaffe, "The Random Universe: How Models and Probability Help Us Make Sense of the Cosmos" (Yale UP, 2025)
    Nov 25 2025
    An award-winning astrophysicist looks at how the understanding of uncertainty and randomness has led to breakthroughs in our knowledge of the cosmos All of us understand the world around us by constructing models, comparing them to observations, and drawing conclusions. Scientists create, test, and replace these models by applying the twinned concepts of probability and randomness. Exploring how this process has refined our knowledge of quantum mechanics and the birth of the universe, In The Random Universe: How Models and Probability Help Us Make Sense of the Cosmos (Yale UP, 2025) Andrew H. Jaffe offers a unique synthesis of the philosophy of epistemology, the mathematics of probability, and the science of cosmology. As Jaffe puts Enlightenment thinkers like David Hume in conversation with contemporary philosophers such as Karl Popper and Imre Lakatos and engages with scientists ranging from Isaac Newton and Galileo to Albert Einstein and Arthur Eddington, he uses Thomas Bayes's seminal studies of statistics and probability to make sense of conflicting currents of thought. This is a deep look into how we have learned to account for uncertainty in our search for knowledge--and a reminder that science is not about facts and data as such but about creating models that correctly account for those facts and data. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 h et 29 min
  • Craig Hogan, "The Unlikely Primeval Sky" (American Scientist, November-December)

    Craig Hogan, "The Unlikely Primeval Sky" (American Scientist, November-December)
    Nov 13 2025
    Of all the patterns that could possibly be preserved in the post–Big Bang radiation, the one we see is surprisingly smooth on large angular scales. Sitting by a campfire on a dark night, looking up at the Milky Way, a curious child asks, “What does the sky tell us? Where does it all come from? Does space go on forever?” A caring adult might share a little awe and humility about humanity’s place in the grand scheme or perhaps relate a traditional creation story. A scientist like me, who came of age soon after the discovery that the sky is not actually dark but awash in primeval radiation, might instead relate the still-unfinished scientific story of the boundaries and origins of time and space. That tale is displayed in nature’s own record of the structure of the early universe, a mosaic of temperature and density fluctuations preserved in the primordial light that astronomers call the cosmic microwave background (CMB). Learn more about your ad choices. Visit megaphone.fm/adchoices
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    30 min