Could spacetime curve in the opposite direction and produce a repulsive field instead of gravity? Neil deGrasse Tyson and comic co-host Chuck Nice tackle fan questions about photons, heat death, gravitational waves, neutron stars and more with astrophysicist Michelle Thaller.

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How do you get entangled particles? Neil deGrasse Tyson and comic co-host Chuck Nice unpack the experimental side of entanglement, superposition, and the quantum underpinnings of our universe with experimental physicist, Sean Hodgman.

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What’s the real difference between dreaming and waking consciousness?  Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly sit down with sleep expert Matt Walker to answer fan questions about the most mysterious thing humans do every single night: sleeping & dreaming. What’s the science behind your sleep paralysis demon? 

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Is there no single shared "now" for everyone in the universe? Neil deGrasse Tyson and comic co-host Paul Mecurio dive into another grab bag of fan questions about superconducting asteroids, what memories are made of, and if you could ever experience pure unwarped spacetime.

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Thanks to our Patrons Alex Sadashiv Nayak, Raviteja K, Lian Zhalka, Thomas Davis, Alex Yumashev, Charles Koehl, Matthew Maldonado, Aleksandre Khatiskatsi, Grig Coker, Matthew Ardebi…Decided to restructure names into comma-separated formatDecided to restructure names into comma-separated formatAlex Sadashiv Nayak, Raviteja K, Lian Zhalka, Thomas Davis, Alex Yumashev, Charles Koehl, Matthew Maldonado, Aleksandre Khatiskatsi, Grig Coker, Matthew Ardebili, Japeth Mitchell, Gaaary, Ian Patton, Casey Steelspine, Veninator, Hannu Latvakoski, Santiago Aguirre, Jonathan Caples, Ryan Wetmore, Dan Lepping, Chris Frank Betz, William Massar, Jason Durden, Jenny Patton, LiveAlive42, Kesh Iyer, scott ezell, Jesse Jensen, Javier E. Gonzalez, rk89, Courteney Kawalek, James Martin, seth forever, Why So Serious, Jared Kennington, andrew bash, David Pillado, Jennie Hrobak, Mariana, Robbie Rogers, Michael Huckey, Anthony Torres, Luke Gilliam, David Hasenauer, Libby Higgins, Willie Lo, and Mike B. for supporting us this week.

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Is it time to update the constellations? On this episode, Neil deGrasse Tyson and comic co-host Matt Kirshen dive into astrophysics, folklore, and our ancient connection to the stars with astrophysicist Moiya McTier, Ph.D.

Originally Aired December 6, 2022.

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What type of planets orbit black holes? Neil deGrasse Tyson and comic co-host Negin Farsad sit down with Mordecai-Mark Mac Low to crack open the mysteries of galaxy collisions, dark matter, and the massive planetary systems around black holes. 

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Did evolution never give us the ability to see reality as it actually is? Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly sit down with cognitive scientist Donald Hoffman to explore what neuroscience, evolutionary game theory, and consciousness suggest about the nature of reality itself.

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What would happen in a world with too much oxygen? Neil deGrasse Tyson and Chuck Nice break down how rocks actually float, warm blankets, and why oxygen isn’t actually flammable. 

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Have aliens already secretly visited us? Neil deGrasse Tyson sits down with Steven Spielberg and screenwriter David Koepp to discuss their new film Disclosure Day, alien contact, and why Spielberg believes there’s more out there than meets the eye.

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Is the fear of heights innate or learned? Neil deGrasse Tyson, Chuck Nice, and Gary O'Reilly explore taking risks, the neuroscience of fear, and how to overcome it with freestyle rock climber and subject of the film Free Solo, Alex Honnold, and neuroscientist Heather Berlin. 

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