PBS Space Time

Apr 10, 2017 · 15m

Dec 22, 2017 · 15m

Apr 28, 2020 · 15m

In today's livestream you'll be able to Ask Matt O'Dowd, a PhD in astrophysics, anything. Tune in to ask your own question or see some of the great questions our audience has for Matt!

Jul 23, 2020 · 15m

Jul 28, 2020 · 15m

In this 90 minute conversation we explore what Theories of Everything really are outside the hype, dig into the essential physics mysteries that compel us to search for one, and survey the major TOE contenders currently being explored by the physics community.

Aug 10, 2020 · 15m

The second in our two event series about Theories of Everything! Watch the first one: https://www.youtube.com/watch?v=_izoc... Please subscribe to Brian Keating's YouTube Channel to watch one-on-one interviews with the guest speakers and more: https://www.youtube.com/DrBrianKeating Existing Theories of Everything have not yet produced experimental evidence that solves the fundamental challenges facing physics. That lack of progress has opened up a sea of controversy, from disagreements about the very necessity of TOEs, to questioning the cost/benefit of mega-billion dollar particle accelerators in search of them, to the emergence of competing TOEs from physicists outside of the academic community. In this 90 minute chat we dive into the existential questions around TOEs. Special thanks to Brian Keating, Lee Smolin, Sabine Hossenfelder, and Eric Weinstein for helping us create this great event.

Dec 10, 2021 · 15m

Feb 10, 2022 · 15m

Dec 18, 2025 · 1h 39m

Black holes are not just the strangest objects in the universe, they're the sharpest test we have of how reality actually works. This episode explores how these extreme cosmic laboratories force general relativity and quantum physics into direct confrontation. We look back through a decade of content to understand their formation and the theoretical diagrams that describe them, offering a journey through the profound implications of these celestial objects for our understanding of space time and astrophysics.