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How much can science discover? Are there boundaries to science? Are there truths—real truths—beyond science?

Featuring interviews with Frank Wilczek, J. Gott, Stephen Wolfram, Bas van Fraassen, and Owen Gingerich.

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When we speak about the future of the universe, we mean when the sun burns out, when galaxies collide, when everything flies apart and ultimately evaporates. Do the untold billions and trillions of years from now make it irrelevant for us today? No. The far far future of the universe conveys meaning now.

Featuring interviews with Martin Rees, Wendy Freedman, Abraham Loeb, Alexander Vilenkin, and Robert Russell.

How do conscious states relate to the rest of reality? Do all animals deserve moral consideration? Can AI be conscious? Philosopher David Papineau discusses the nature of consciousness, the mind-body problem, physicalism versus materialism, and much more.

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David Papineau is a British academic philosopher, born in Como, Italy. He works as Professor of Philosophy of Science at King's College London and the City University of New York Graduate Center, and previously taught for several years at Cambridge University, where he was a fellow of Robinson College.

Papineau's latest book, The Metaphysics of Sensory Experience, is on sale now.

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Nothing means anything without our brains: not science, not theology, not politics, not love. Everything we know and do-all the sense of human thought, all the feelings of human emotion-all are the product of the brains in our heads.

Featuring interviews with Rodolfo Llinas, John Mazziotta, Joseph LeDoux, Mike Merzenich, and Eran Zaidel.

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Some say that consciousness is the only true reality—that everything else, including the universe, comes from consciousness. If so, how would consciousness relate to the world?

Featuring interviews with Deepak Chopra, Donald Hoffman, Neil Theise, Fred Alan Wolf, Frank J. Tipler, and Charles T. Tart.

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We know the age of the universe, how stars were born, how galaxies were formed. But does the cosmos have meaning? Not make-believe, feel-good meaning. But real meaning.

Featuring interviews with Saul Perlmutter, Roger Penrose, Paul Steinhardt, Martin Rees, and Frank Drake.

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How can I assess whether God exists without exploring what kind of God is supposed to exist? So I examine God's essence and nature.

Featuring interviews with John Polkinghorne, John Behr, John Hick, J.L. Schellenberg, and Timothy O'Connor.

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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 thousand years of galaxy studies, Graur discusses the types of galaxies we observe and the physics that drive them; the myths and physical structure of the Milky Way; how galaxies were used to discover and study the mysterious phenomena of dark matter and dark energy; and how scientists think galaxies formed shortly after the Big Bang and evolved to their present forms.

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Or Graur is Associate Professor of Astrophysics at the University of Portsmouth's Institute of Cosmology and Gravitation, as well as Research Associate at the American Museum of Natural History. He is the author of "Supernova" and his latest book, "Galaxies" from MIT Press.