
Sir Martin Rees
Emeritus Professor of Cosmology and Astrophysics at the University of Cambridge, Astronomer Royal of the United Kingdom, and co-founder of the Centre for the Study of Existential Risk. His expertise lies in cosmology, astrophysics, and existential risks.
Top 5 podcasts with Sir Martin Rees
Ranked by the Snipd community

26 snips
Jul 22, 2025 • 1h 6min
Are We Alone? Martin Rees on Aliens, The Fermi Paradox & The Fate of Humanity
In a thought-provoking discussion, Lord Martin Rees, a leading cosmologist and former Astronomer Royal, dives into humanity's quest to understand the universe and ourselves. He tackles Fermi's Paradox and what the silence of extraterrestrial civilizations means for us. Rees reflects on his collaboration with Stephen Hawking, shares views on the ethical implications of AI, and explores the delicate balance between moral progress and technological risks. His insights challenge listeners to consider how our beliefs shape our understanding of existence and the future.

14 snips
Aug 1, 2025 • 1h 17min
Martin Rees - If They’re Conscious, We Should Step Aside (Worthy Successor, Episode 12)
In this thought-provoking discussion, Martin Rees, a distinguished British cosmologist and astrophysicist, explores humanity's potential transition to post-human intelligences. He argues we must recognize the possibility of advanced life forms beyond our own and shift away from anthropocentric views. Rees delves into the implications of artificial general intelligence, the moral responsibilities entwined with technological advancements, and the exciting yet daunting future of consciousness. He emphasizes the importance of international cooperation to navigate these unprecedented challenges.

Mar 2, 2020 • 1h 40min
86 | Martin Rees on Threats to Humanity, Prospects for Posthumanity, and Life in the Universe
In this insightful discussion, Martin Rees, Emeritus Professor of Cosmology and Astrophysics and Astronomer Royal, explores existential risks humanity faces, from nuclear threats to artificial intelligence. He emphasizes the importance of addressing low-probability, high-impact scenarios with transparency. Rees also speculates on humanity's evolution and the ethical implications of genetic engineering and consciousness uploading. The conversation touches on the exciting possibilities of extraterrestrial life and the future of human society in a rapidly advancing technological landscape.

Aug 14, 2025 • 37min
Forget AI—How Bio-Threats and Network Collapse Are the Real Existential Threats to Humanity
Martin Rees, a renowned British cosmologist and co-founder of Cambridge’s Centre for Existential Risk, shares his insightful views on humanity's most pressing threats. He argues that bio-threats and network collapse are far more dangerous than AI, highlighting the risks posed by engineered pathogens and our fragile global infrastructure. Rees warns that complete dependence on interconnected systems could lead to catastrophic failures in mere days. Instead of fearing AI's superintelligence, he believes we should focus on these overlooked existential risks.

Mar 6, 2012 • 28min
Martin Rees
Join Martin Rees, the Astronomer Royal and leading cosmologist, as he journeys through the cosmos and tackles profound questions about the universe. He delves into black holes, dark matter, and the possibility of life beyond Earth. Rees also shares insights on the multiverse theory and its philosophical implications, alongside the delicate balance between science and religion. With a wealth of experience in science policy, he discusses the critical need for science funding to drive societal progress and reflects on a lifetime of discovery in astronomy.