Cosmic Queries – The Fabric of Spacetime

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. NOTE: StarTalk+ Patrons can lis ... Show More

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. NOTE ... Show More

Did the Milky Way used to be a quasar? On this episode, Neil deGrasse Tyson and comic co-host Chuck Nice explore quasars, the high energy universe, and the movie we’re making of the night’s sky with astrophysicist & host of PBS Space Time, Matt O’Dowd. NOTE: StarTalk+ Patrons can ... Show More

It's easy to forget that long standing scientific theories are in fact, theories and therefore are subject to revision and change as new information comes to light or we develop new ways to understand our Universe. The current accepted theory on the creation of our Universe is, o ... Show More

Are you ready to uncover the mind-bending secrets of our universe? Join us as we reveal the unexpected truth about the formation of habitable planets and the potential for multiple habitable worlds within a single solar system. You won't believe how many habitable planets could e ... Show More

Have you ever wondered if there are parallel universes? Earlier this year, a NASA study suggested there might be another universe where time goes backwards. Could that be a universe made of antimatter? Why did matter win over antimatter after the Big Bang? If there is an antimatt ... Show More

Neil deGrasse Tyson (@neiltyson) is the Frederick P. Rose Director of the Hayden Planetarium, host of StarTalk Radio, and author. He is kind enough to rejoin us and discuss his latest book, Starry Messenger: Cosmic Perspectives on Civilization. What We Discuss with Neil deGrasse ... Show More

Leonard Susskind is a professor of theoretical physics at Stanford University, and founding director of the Stanford Institute for Theoretical Physics. He is widely regarded as one of the fathers of string theory and in general as one of the greatest physicists of our time both a ... Show More

<p>Last time, we introduced the biggest open problem in theoretical physics - the problem of combining gravity with quantum mechanics. In this first part of a three-part series, we introduce the leading candidate for how to do that: String Theory.<br/><br/>For ad-free episodes an ... Show More

Time can feel like a subjective experience—different at different points in our lives. It’s also a real, measurable thing. The universe may be too big to fully comprehend, but what we do know could help inform the ways we approach our understanding of ourselves, our purpose, and ... Show More

Sign up for the Great Courses Plus today and enjoy the first month for free: https://bit.ly/podcast-great-courses-plus We know the history of this planet and asteroids isn't good...just ask the dinosaurs. So, what if we were faced with the same situation now? How much time wou ... Show More

A century ago, astronomers were locked in a debate about the scope of our universe. Were we it? The answer is no. There are other galaxies beyond the Milky Way, and they are speeding away from us. Answering that question left astronomers with an even bigger puzzle. Why is everyth ... Show More