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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Thanks to our Patrons Rhagor, Beans, Eric Grant, DOCTOR FN ASTRONAUT, Richard Thompson, Niclas Larsson, Cathy Hayes, SunshineKat Snyder, Brandon, Matt Caldwell, Tim Davies, M.Victoria Delpiano, Heyo13579, Erin McCullough, Shalon Sorensen, Kaydence Johnson, RJ, Dave, Sindre Skybert, Mr. V, Neon lion Blacklight cozylazy, Mary Mitchell, Trip Ni Selo, S. H., Cloud3X, P.M., Dallas, Dan, Getyoducksinarow, David S, Michael Koenig, Jason A, Reg Anderson, Sean Marien, Adeel Rahman, joe hoffmann, Ronald Merrifield, Jesse Miner, David Pazer, Toshi Jordan, Pat Voss, Nicholas Wiseman, Antoine Portes, Colin, David Crouse, Sander van Liempd, Wendy R., J P, Kenneth Cook, Joey, Fixxxer331, Nathan Hinote, Hara Kannajosyula, Heath Horne, Pixtle, Brett M Garabedian, Ryan Alba, Paul Tindall, Tony Stewart, and Stephanie Moore for supporting us this week.

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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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