Episodes

  • Did She Just Prove the Multiverse Is Real? (Ft Laura M-Houghton) [Ep. 501]

    Did She Just Prove the Multiverse Is Real? (Ft Laura M-Houghton) [Ep. 501]
    Jul 9 2025
    What if the Big Bang wasn’t the beginning? What if our universe is just one in a vast cosmic ocean of universes, and we have the evidence to prove it? In this episode of Into the Impossible, I’m joined by theoretical physicist Laura Mersini-Houghton to explore one of the most provocative ideas in modern cosmology: the multiverse is not only real—it’s testable. Mersini, author of Before the Big Bang, walks us through her bold predictions about the structure of the cosmos, including the mysterious cold spot in the cosmic microwave background (CMB) that she foresaw years before it was confirmed by the Planck satellite. Together, we dissect her groundbreaking theory that our universe began as one branch of a quantum wave function stretching across a multiverse landscape. We talk quantum decoherence, cosmic scars, and how entanglement with other universes could leave measurable fingerprints in our sky. We also debate criticisms from fellow physicists and dive into what these revelations mean for the future of dark energy and cosmological theory. — Key Takeaways: 00:00 What happened before the Big Bang? 01:56 The CMB cold spot prediction 05:16 Quantum entanglement and decoherence 11:31 Criticism and evidence for the multiverse 17:06 The wave function of the universe 20:48 The string landscape and constants of nature 23:54 The cold spot and the hemispherical anomaly 37:20 Thoughts on the recent DESI suggestions 40:46 Judging a book by its cover 47:31 The multiverse and religion 57:29 Outro — Additional resources: ➡️ Follow me on your fav platforms: ✖️ Twitter:⁠ ⁠⁠https://twitter.com/DrBrianKeating⁠ 🔔 YouTube:⁠ https://www.youtube.com/DrBrianKeating?sub_confirmation=1⁠ 📝 Join my mailing list:⁠ ⁠⁠https://briankeating.com/list⁠ ✍️ Check out my blog:⁠ ⁠⁠https://briankeating.com/cosmic-musings/⁠ 🎙️ Follow my podcast:⁠ ⁠⁠https://briankeating.com/podcast⁠ — Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to follow/subscribe so you never miss an episode! Learn more about your ad choices. Visit megaphone.fm/adchoices
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    59 mins
  • Timescapes Make Dark Energy Irrelevant! (ft. David Wiltshire) [Ep. 500]

    Timescapes Make Dark Energy Irrelevant! (ft. David Wiltshire) [Ep. 500]
    Jun 30 2025
    What if everything we know about the universe’s expansion is wrong? David Wiltshire offers a radical perspective on cosmic acceleration and dark energy, proposing that both might be illusions created by the varying passage of time in different regions of the universe. Wiltshire challenges the foundations of modern cosmology with his innovative Timescape model. We discuss the foundations of Einstein's theory of relativity, examining how time behaves differently in regions of high and low matter density. Wiltshire explains how this could alter our understanding of the universe’s expansion, potentially eliminating the need for dark energy altogether. His work revisits Mark’s Principle and its influence on cosmology, offering an alternative explanation for cosmic phenomena. This episode will captivate anyone interested in the future of cosmological theory, the mystery of dark energy, and the complex nature of time. Don’t miss out! — Key Takeaways: 00:00:00 Intro 00:01:36 David Wiltshire’s model and its implications 00:02:35 Mach's Principle and its influence on relativity 00:06:28 Gravitational time dilation and its implications 00:42:16 The cosmological equivalence principle 00:42:50 The Timescape Model and its predictions 00:43:53 The role of dark energy and the cosmological constant 00:53:43 The philosophical and psychological implications of Timescape 01:09:41 Outro — Additional resources: ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating 🔔 YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 📝 Join my mailing list: https://briankeating.com/list ✍️ Check out my blog: https://briankeating.com/cosmic-musings/ 🎙️ Follow my podcast: https://briankeating.com/podcast — Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to follow/subscribe so you never miss an episode! Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 hr and 16 mins
  • The Scientists Ep. 6: The Life of Hedy Lamarr

    The Scientists Ep. 6: The Life of Hedy Lamarr
    Jun 25 2025
    Please join my mailing list here 👉 https://briankeating.com/list to win a meteorite 💥 This episode, hosted by Brian Keating—Chancellor’s Distinguished Professor of Physics at UC San Diego—delves into one of the most fascinating and underappreciated stories at the intersection of beauty, brilliance, and invention. Today, we step away from pure physics and astronomy to explore the remarkable life of Hedy Lamarr, an iconic Hollywood actress whose real genius lay not just on the silver screen, but at the heart of technological innovation. Listen in as Brian Keating brings to life the legacy of a woman who changed the world—not for fame, but for the sheer joy of invention and enduring curiosity. - Key Takeaways: 00:00 Hedy Lamarr: Star and Inventor 03:30 Dual Facade: Performance and Analysis 09:04 Espionage and Escape Plan 10:35 Hedy Lamarr's Hollywood Transformation 13:59 Frequency Hopping Communication Technique 16:35 Hedy Lamarr's Overlooked Invention 22:43 Genius: Curiosity Over Credentials 24:01 "Hedy Lamarr: Beyond Hollywood" - The Scientists is a documentary-style podcast series hosted by astrophysicist Brian Keating. Each episode explores the untold stories behind history’s greatest minds—from Nobel laureates to visionary misfits—revealing the personal struggles, intellectual triumphs, and paradigm-shifting ideas that changed the world. Each week, I dive into the life and legacy of a legendary scientist—experimentalists, theorists, and observers alike—and uncover insights you can apply to your own work and worldview. Science didn’t appear fully formed; it was built by real people solving real problems under pressure. Their ideas still shape our future. We’ll examine not just what they discovered, but who they were—from their obsessions and honors to their most spectacular ideas, brilliant blunders, and beautifully human flaws. New episodes weekly. Learn more at BrianKeating.com. 🎙️ Subscribe for compelling science storytelling. 📚 Listen to our companion series Into the Impossible for interviews with living legends. #science #sciencepodcast #historyofscience #nobelprizewinners #famousscientists #scientificdiscoveries #physics #chemistry #thescientistsbriankeating #intotheimpossible #sciencecommunication Learn more about your ad choices. Visit megaphone.fm/adchoices
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    27 mins
  • First Data from Vera Rubin Observatory Rewrites Astronomy (Starting Now)

    First Data from Vera Rubin Observatory Rewrites Astronomy (Starting Now)
    Jun 23 2025
    In this exclusive interview, Professor Mario Jurić reveals how the Vera Rubin Observatory accidentally discovered 2,000 asteroids in just 10 hours while testing its capabilities on the distant Virgo Cluster—transforming humanity's asteroid discovery rate from 20,000 per year globally to potentially over one million annually with a single telescope. Jurić explains how VRO's revolutionary multi-messenger astronomy capabilities will detect dark matter's effects and light simultaneously, automatically slewing to capture cosmic catastrophes like black hole collisions within 30 seconds of detection. From mapping dark matter in galaxy clusters 54 million light-years away to building Earth's first comprehensive planetary defense system against asteroid impacts, this conversation explores how one observatory is about to fundamentally change both our understanding of the universe and our ability to survive in it. — Please join my mailing list here 👉 https://briankeating.com/list to win a meteorite 💥 — Key Takeaways: 00:00 Intro 03:10 Mario’s reaction to the first data 04:13 Democratizing astronomy and citizen science 06:38 Technical details and capabilities 11:28 First look: A fly-through of the Virgo Cluster 21:42 Rubin and the Lambda-CDM model 28:22 How faint a sensitivity can Rubin achieve 33:03 Asteroid discovery revolution 37:52 Challenges of data analysis 41:38 Astronomy and AI 46:34 What kinds of civilization-changing discoveries might be hiding in the data? 50:48 Outro — Additional resources: 🔹Skyviewer App: https://skyviewer.app/ 🔹First Images from NSF–DOE Vera C. Rubin Observatory: https://www.youtube.com/live/dF1g-Ru8mjM?si=Y3-lKTSjZAH_oGHl — ➡️ Follow me on your fav platforms: ✖️ Twitter:⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://twitter.com/DrBrianKeating⁠⁠⁠⁠⁠⁠⁠⁠⁠ 🔔 YouTube:⁠⁠⁠⁠⁠⁠⁠⁠⁠ https://www.youtube.com/DrBrianKeating?sub_confirmation=1⁠⁠⁠⁠⁠⁠⁠⁠⁠ 📝 Join my mailing list:⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/list⁠⁠⁠⁠⁠⁠⁠⁠⁠ ✍️ Check out my blog:⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/cosmic-musings/⁠⁠⁠⁠⁠⁠⁠⁠⁠ 🎙️ Follow my podcast:⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/podcast⁠⁠⁠⁠⁠⁠⁠⁠⁠ — Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to follow so you never miss an episode! Learn more about your ad choices. Visit megaphone.fm/adchoices
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    52 mins
  • NEW Dark Energy Data Surprises Scientists (ft. Kyle Dawson)

    NEW Dark Energy Data Surprises Scientists (ft. Kyle Dawson)
    Jun 18 2025
    Is everything we thought we knew about the universe… wrong? Is the Lambda-CDM model nearing its breaking point? Could dark energy actually be evolving? In this episode of Into the Impossible, I’m joined by Kyle Dawson and Daniel Green to discuss the latest data from the DESI experiment. These new results are making headlines, and rightfully so, as they hold the potential to transform our understanding of the universe completely. Kyle Dawson, a key figure in the DESI project and professor at the University of Utah, explains the findings from DESI’s second data release. Together with Daniel Green from the University of California, San Diego, we dig into how fresh observations of dark energy, baryon acoustic oscillations (BAO), and cosmic expansion are revealing cracks in the standard model. We also break down the implications of these results and talk about the possible existence of negative neutrino masses—a topic that’s been gaining a lot of attention in the cosmology community. Don’t miss out! — Please join my mailing list here 👉 https://briankeating.com/list to win a meteorite 💥 — Key Takeaways: 00:00 Intro 01:09 Most surprising results of the DESI experiment 02:38 DESI’s instrumentation and data analysis 05:43 What’s lacking in the CMB? 07:17 The 4.2 sigma tension in cosmological data 10:44 Theoretical models and dark energy evolution 22:16 Neutrino mass, dark energy, and paradigm shifts 28:41 Scepticism about current cosmological models 30:22 Negative neutrino mass 40:35 Technological advancements and the future of DESI 48:15 Outro — Additional resources: ➡️ Follow me on your fav platforms: ✖️ Twitter:⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://twitter.com/DrBrianKeating⁠⁠⁠⁠⁠⁠⁠⁠ 🔔 YouTube:⁠⁠⁠⁠⁠⁠⁠⁠ https://www.youtube.com/DrBrianKeating?sub_confirmation=1⁠⁠⁠⁠⁠⁠⁠⁠ 📝 Join my mailing list:⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/list⁠⁠⁠⁠⁠⁠⁠⁠ ✍️ Check out my blog:⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/cosmic-musings/⁠⁠⁠⁠⁠⁠⁠⁠ 🎙️ Follow my podcast:⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/podcast⁠⁠⁠⁠⁠⁠⁠⁠ — Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to follow so you never miss an episode! Learn more about your ad choices. Visit megaphone.fm/adchoices
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    55 mins
  • The Scientists Ep. 5: Steven Weinberg’s Legacy, Religion, and Cosmology

    The Scientists Ep. 5: Steven Weinberg’s Legacy, Religion, and Cosmology
    Jun 15 2025
    Please join my mailing list here 👉 https://briankeating.com/list to win a meteorite 💥 Brian Keating reflects on the life and legacy of Nobel laureate Steven Weinberg, the legendary physicist and writer whose influence shaped generations of scientists and thinkers. Driven by the regret of never having hosted Weinberg on the show before his passing, Brian takes listeners on a deeply personal journey—from his formative college years, inspired by Weinberg’s groundbreaking book "The First Three Minutes," to his thoughts on the intersection of science, meaning, and religion. Join Brian Keating as he honors a hero, wrestles with big questions, and invites you to reflect on what truly makes life—and science—impossible to ignore. - The Scientists is a documentary-style podcast series hosted by astrophysicist Brian Keating. Each episode explores the untold stories behind history’s greatest minds—from Nobel laureates to visionary misfits—revealing the personal struggles, intellectual triumphs, and paradigm-shifting ideas that changed the world. Each week, I dive into the life and legacy of a legendary scientist—experimentalists, theorists, and observers alike—and uncover insights you can apply to your own work and worldview. Science didn’t appear fully formed; it was built by real people solving real problems under pressure. Their ideas still shape our future. We’ll examine not just what they discovered, but who they were—from their obsessions and honors to their most spectacular ideas, brilliant blunders, and beautifully human flaws. New episodes weekly. Learn more at BrianKeating.com. 🎙️ Subscribe for compelling science storytelling. 📚 Listen to our companion series Into the Impossible for interviews with living legends. #science #sciencepodcast #historyofscience #nobelprizewinners #famousscientists #scientificdiscoveries #physics #chemistry #thescientistsbriankeating #intotheimpossible #sciencecommunication Learn more about your ad choices. Visit megaphone.fm/adchoices
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    1 hr and 24 mins
  • Eric Weinstein's Theory of Everything Confirmed?

    Eric Weinstein's Theory of Everything Confirmed?
    Jun 12 2025
    How are recent DESI experimental results challenging the traditional view of dark energy as a fixed cosmological constant? Are foundational assumptions in Einstein’s general relativity limiting progress in theoretical physics? And how do tensions in cosmological measurements, like the Hubble constant discrepancy, reflect deeper issues in physics? In this episode, we’ll explore these fundamental questions with none other than Eric Weinstein! Eric is one of the most revered thinkers of our generation. Though not an academic physicist, he proposed a unified theory of physics in 2013, which is supposed to have the potential to explain phenomena that string theory cannot. In a lecture held live at UCSD in April 2025 at the prestigious Astrophysics and Cosmology Seminar, Eric presented an update to his groundbreaking theory. Today, we’ll discuss his fascinating theory, the future of physics and academia, and much more. Eric is an investor, financial executive, and host of The Portal. He and his brother, Bret Weinstein, coined the term Intellectual Dark Web to refer to an informal group of pundits. Eric is a vocal critic of modern academic hierarchies and advocates for advances in scientific theory over an emphasis on experimental results. He proposed a new unified theory of physics in 2013 and has been an active member of the physics community since then. — Please join my mailing list here 👉 https://briankeating.com/list to win a meteorite 💥 — Key Takeaways: 00:00:00 Intro 00:00:29 DESI results and the cosmological constant 00:08:33 Why general relativity is fundamentally limited 00:16:11 Elon Musk’s obsession with Mars 00:26:01 Sharing ideas with broader audiences 00:30:56 Dark energy’s evolving nature 00:34:16 Discrepancies in cosmological measurements 00:43:02 Freeing dark energy from constancy 00:50:16 Einstein’s happiest thought, LLMs and physics 00:59:09 Eric’s thoughts on Lenny Susskind, Joe Rogan, and Terrence Howard 01:04:44 Pseudoscience and the debunking community 01:23:55 The future of academia and academic freedom 01:48:45 Political polarization in the United States 01:56:43 October 7th 02:00:50 Remembering Jim Simons and Chern-Simons theory 02:21:10 Outro — Additional resources: ➡️ Learn more about Eric: 🎙️ Website: https://ericweinstein.org/ ➡️ Follow me on your fav platforms: ✖️ Twitter:⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://twitter.com/DrBrianKeating⁠⁠⁠⁠⁠⁠⁠ 🔔 YouTube:⁠⁠⁠⁠⁠⁠⁠ https://www.youtube.com/DrBrianKeating?sub_confirmation=1⁠⁠⁠⁠⁠⁠⁠ 📝 Join my mailing list:⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/list⁠⁠⁠⁠⁠⁠⁠ ✍️ Check out my blog:⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/cosmic-musings/⁠⁠⁠⁠⁠⁠⁠ 🎙️ Follow my podcast:⁠⁠⁠⁠⁠⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://briankeating.com/podcast⁠⁠⁠⁠⁠⁠⁠ — Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to follow so you never miss an episode! Learn more about your ad choices. Visit megaphone.fm/adchoices
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    2 hrs and 29 mins
  • The Scientists Ep. 4: Carl Sagan's Five Principles

    The Scientists Ep. 4: Carl Sagan's Five Principles
    Jun 8 2025
    Please join my mailing list here 👉 https://briankeating.com/list to win a meteorite 💥 Brian Keating deep dives into the remarkable life and legacy of Carl Sagan—one of history’s greatest science communicators. In this special episode of "The Scientist," Brian explores how a kid from Brooklyn rose to become the voice of science for a generation, making the universe both vast and intimately personal for millions. This episode blends firsthand accounts, critical biographies, and personal reflections to extract five powerful principles from Sagan’s career—offering insights into how we, too, might inject more wonder, rigor, and responsibility into our own journeys. Whether you’re a scientist, a dreamer, or simply curious about your place in the cosmos, this episode promises an inspiring look at an imperfect but extraordinary man who changed how we see our universe. Key Takeaways: 00:00 Reflections on Carl Sagan's Legacy 03:13 Young Sagan Challenges Venus Theories 07:10 Carl Sagan: Public Engagement Advocate 10:26 Carl Sagan's Influential Responsibility 14:31 "Overview Effect: A Vision for Humanity" 16:59 Embracing Change and Courage in Science 22:13 "Challenging Sagan: Science vs. Optimism" 25:20 Galileo's Earth Observations Legacy 26:21 Demand Evidence, Keep Wondering - Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join 📚 Get a copy of my books: Think Like a Nobel Prize Winner, with life changing interviews with 9 Nobel Prizewinners: https://a.co/d/03ezQFu My tell-all cosmic memoir Losing the Nobel Prize: http://amzn.to/2sa5UpA The first-ever audiobook from Galileo: Dialogue Concerning the Two Chief World Systems: Ptolemaic and Copernican https://a.co/d/iZPi9Un 📺 Watch my most popular videos:📺 Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me to ask questions of my guests: 🏄‍♂️ Twitter: https://twitter.com/DrBrianKeating 🔔 Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 📝 Join my mailing list; just click here http://briankeating.com/list ✍️ Detailed Blog posts here: https://briankeating.com/blog ️ Listen on audio-only platforms: https://briankeating.com/podcast #universe #podcast #briankeating #intotheimpossible #science #astronomy #cosmology #cosmicmicrowavebackground #intotheimpossible #briankeating Learn more about your ad choices. Visit megaphone.fm/adchoices
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    28 mins