Janna Levin discusses black holes, spacetime, and other cosmological phenomena.

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Janna Levin on Black Holes and Spacetime

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How does the brain give rise to the mind—and can machines do the same? Neuroscientist Terry Sejnowski joins Robert Lawrence Kuhn to explore the deep connections between...

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Terrence Sejnowski on Neurobiology and AI

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On July 23, 2024, Closer To Truth host Robert Lawrence Kuhn gave the keynote address at an event at the University of Latvia in Riga. The event celebrated the launch of the...

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Robert Lawrence Kuhn: Levels of Nothing

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Sara Imari Walker shares an intriguing new scientific theory that explains what life is and how it emerges.

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Sara Imari Walker on Physics, Emergence, and Life on Other Planets

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Astrophysicist Or Graur offers a brief and fascinating overview of the history, physics, and astrophysical uses of galaxies. Starting with the history of the last two...

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Or Graur on the Big Bang and the Physics of Galaxies

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Why is matter solid? Why is there antimatter? Where do the sizes of atoms come from? Theoretical physicist and philosopher Sean Carroll cuts to the bare mathematical essence...

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Sean Carroll on Physics, the Multiverse, and Quantum Mechanics

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To celebrate Closer To Truth's partnership with this year's HowtheLightGetsIn Hay festival, host Robert Lawrence Kuhn and IAI founder Hilary Lawson sat down for a...

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Hilary Lawson & Robert Lawrence Kuhn: Answering Fan Questions on AI, Consciousness, & More

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Carlo Rovelli on White Holes

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Theoretical physicist and astronomer Marcelo Glesier offers compelling argument for including the human perspective within science, and for how human experience makes science...

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Marcelo Gleiser on Why Science Cannot Ignore Human Experience

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Cosmologist Martin Rees discusses the latest advances in cosmology like the breathtaking images and data from the James Webb Space Telescope—galaxies formed soon after the...

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Martin Rees on Cosmology and Existential Risk

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Cosmologist and physics professor Will Kinney discusses his book, An Infinity of Worlds: Cosmic Inflation and the Beginning of the Universe. Kinney considers what happened...

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Will Kinney on Cosmic Inflation and the Beginning of the Universe

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Thomas Hertog discusses his book on the origin of time and Stephen Hawking.

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Thomas Hertog on the Origin of Time

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Astronomer and astrobiologist Dr. Aomawa Shields discusses her latest book, Life on Other Planets: A Memoir of Finding My Place in the Universe. The book charts her life as...

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Aomawa Shields on Life on Other Planets

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Sir Roger Penrose talks about the work that earned him a Nobel prize in physics, developing mathematics to analyze spacetime, his 1965 paper “Gravitational Collapse and...

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Roger Penrose on Spacetime, Quantum Theory, and General Relativity

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Sir Roger Penrose shares his thoughts on mathematics and world reflections. He discusses his “three worlds and three deep mysteries” theory, pure mathematics, the...

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Roger Penrose on Mathematics, Physics, and the World

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Theoretical physicist Michio Kaku discusses his new book, Quantum Supremacy: How the Quantum Computer Revolution Will Change Everything.

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Michio Kaku on Quantum Supremacy

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Tim Palmer discusses his new book, The Primacy of Doubt: From Quantum Physics to Climate Change, How the Science of Uncertainty Can Help Us Understand Our Chaotic World. In...

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Tim Palmer on Doubt: From Quantum Physics to Climate Change

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Mathematician Manil Suri talks about about his insightful new book, The Big Bang of Numbers: How to Build the Universe Using Only Math. He explores if math describes the...

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Manil Suri on How to Build the Universe with Math

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Sean Carroll talks about about his terrific new book, The Biggest Ideas in the Universe: Space, Time, and Motion. He also dives into the importance of equations in popular...

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Sean Carroll on the Biggest Ideas in the Universe

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Sabine Hossenfelder talks about if the past exists, how the universe began and how it will end, information, math as reality, time, and consciousness. She also discusses her...

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Sabine Hossenfelder on Physics and the Big Questions

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Theoretical physicist and mathematician Frank Wilczek discusses his way of thinking about fundamental science, his writing and philosophy, humanity’s place and purpose,...

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Frank Wilczek on Thinking, Writing, and Science

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Theoretical physicist and mathematician Frank Wilczek discusses humankind’s place and purpose, what is and what could be in science, and the laws of physics....

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Frank Wilczek on the Future of Science

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English philosopher Hilary Lawson discusses his book, Closure: A Story of Everything, a text that develops a comprehensive system of non-realist metaphysics.Hilary Lawson is...

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Hilary Lawson on Closure

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Astrophysicist Paul Davies talks his new book, What’s Eating the Universe? And Other Cosmic Questions. In it, he covers teleology in the cosmos, the fine-tuning of our...

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[Part 1] Paul Davies on What’s Eating the Universe

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Astrophysicist Paul Davies continues the conversation on his new book, What’s Eating the Universe? And Other Cosmic Questions. From Consciousness, the Cosmic Horizon, and...

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[Part 2] Paul Davies on What’s Eating the Universe

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Stephon Alexander, cosmologist and professor of theoretical physics at Brown University, discusses his most recent book, Fear of a Black Universe: An Outsider’s Guide...

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Stephon Alexander on the Fear of a Black Universe | Closer To Truth Chats

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Mario Livio talks Galileo, the Hubble Telescope, modern and historical science denial, and the far future of life in the universe. He also discusses his book, Galileo and the...

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Mario Livio on Science Denial

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Given the remarkable advances in precision cosmology over the past few decades, can we forecast what we might discover in 10 or 20 years or even 30 years at mid-century? What...

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Martin Rees on the Future of Cosmology

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Astronomer Wendy Freedman sits down with Closer To Truth to discuss her work on the Hubble Constant, Standard Candles, the expansion of the universe, and the Giant Magellan...

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Wendy Freedman on the Hubble Constant

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Theoretical physicist Leonard Mlodinow, who spent nearly two decades collaborating with Stephen Hawking, joined Robert for a live discussion about his new book, Stephen...

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Leonard Mlodinow on Stephen Hawking and Physics

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What if there is a single theory that can explain the physical universe? Theoretical physicist Michio Kaku discusses his new book, The God Equation: The Quest for a Theory of...

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Michio Kaku on the God Equation

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Jill Tarter, former Director of the Center for SETI Research discusses the search for alien life, alien technology and technosignatures, the Fermi Paradox, risks from...

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Jill Tarter on Alien Intelligences

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Why, when most laws of physics allow for it to flow forward and backward, does it only go forward? What if time moves in two directions? Julian Barbour discusses his new...

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Julian Barbour on the Direction of Time

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Astrophysicist George Smoot discusses the history of precision cosmology, his work in gravitational lensing, the existence of dark matter, and the future of astrophysics.

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George Smoot on Dark Matter

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Ken Olum, Research Professor at Tufts University talks cosmic inflation, gravitational waves, string theory, and the mystery of the Hubble Constant versus the measurements...

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Ken Olum on Quantum Mechanics and Time

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Rebecca Goldstein discusses the meanings of “matter”, philosophy in science, the hard problem of consciousness, and her decades of experience as a fiction and...

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Rebecca Goldstein on the Meaning of Matter

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