Neil deGrasse Tyson and co-host Chuck Nice speak with theoretical physicist Jim Gates about Albert Einstein's special and general relativity, why general relativity required experimental verification, and the 20th‑century efforts to test it via starlight deflection during a solar eclipse. They then field listener questions on topics including the incompatibility between general relativity and quantum mechanics, gravitons and quantum gravity, string theory signatures in the cosmic microwave background, gravitational lensing, and the possibility of a cosmic gravitational-wave background. Throughout, Gates also reflects on the "magic" of mathematics in describing reality and the collaborative, human side of doing physics.
In this live Special Edition of StarTalk recorded at Guild Hall in East Hampton, Neil deGrasse Tyson, comedian Chuck Nice, former soccer pro Gary O'Reilly, and astrophysicist Charles Liu explore the real physics behind superhero powers. They discuss Superman's physiology, X-ray vision, wormholes and warp drive, invisibility, quantum effects like tunneling, entanglement, and many-worlds, and how these ideas appear in comics and films. The conversation ends with reflections on quantum physics, the limits of human intuition, and why embracing unanswered questions is central to science and culture.
Neil deGrasse Tyson and co-host Chuck Nice talk with philosopher of physics Elise Crull about the historical and contemporary relationship between physics and philosophy. They trace how natural philosophy split into specialized disciplines, how foundational concepts like space, time, and objectivity shaped classical and modern physics, and why questions raised by quantum mechanics-such as entanglement and non-locality-force a reevaluation of those concepts. The conversation also explores academic specialization, the role of philosophy in guiding cutting-edge physics, and Neil's nuanced critique of modern academic philosophy.
Neil deGrasse Tyson hosts a Cosmic Queries Grab Bag edition, answering listener questions on topics ranging from why eclipses do not happen every month to the evaporation and final moments of black holes. He discusses dark energy and why external gravitational tugs are unlikely to explain it, defends the term "black hole," explores time travel paradoxes and Hawking's chronology protection idea, and explains Jupiter's shielding role in the solar system. The episode also covers entropy and why life on Earth does not violate the second law of thermodynamics, relativistic addition of velocities, the distinction between space and time dimensions, the value of scientific literacy, and what "vacuum" and "nothing" really mean in physics.
Neil deGrasse Tyson and co-host Chuck Nice field a grab bag of listener questions on topics ranging from black holes and Hawking radiation to dark matter, exoplanet life, and the structure of the observable universe. They also discuss the feasibility of colonizing other planets, the impact of military versus science funding, how solitude enabled figures like Isaac Newton to make breakthroughs, and the role of science literacy in preventing societal self-destruction.