Wormholes

Wormholes

Author: BBC Radio 4 October 24, 2024 Duration: 1:00:56

Melvyn Bragg and guests discuss the tantalising idea that there are shortcuts between distant galaxies, somewhere out there in the universe. The idea emerged in the context of Einstein's theories and the challenge has been not so much to prove their unlikely existence as to show why they ought to be impossible. The universe would have to folded back on itself in places, and there would have to be something to make the wormholes and then to keep them open. But is there anywhere in the vast universe like that? Could there be holes that we or more advanced civilisations might travel through, from one galaxy to another and, if not, why not?

With

Toby Wiseman Professor of Theoretical Physics at Imperial College London

Katy Clough Senior Lecturer in Mathematics at Queen Mary, University of London

And

Andrew Pontzen Professor of Cosmology at Durham University

Producer: Simon Tillotson

Reading list:

Jim Al-Khalili, Black Holes, Wormholes and Time Machines (Taylor & Francis, 1999)

Andrew Pontzen, The Universe in a Box: Simulations and the Quest to Code the Cosmos (Riverhead Books, 2023)

Claudia de Rham, The Beauty of Falling: A Life in Pursuit of Gravity (Princeton University Press, 2024)

Carl Sagan, Contact (Simon and Schuster, 1985)

Kip Thorne, Black Holes & Time Warps: Einstein's Outrageous Legacy (W. W. Norton & Company, 1994)

Kip Thorne, Science of Interstellar (W. W. Norton & Company, 2014)

Matt Visser, Lorentzian Wormholes: From Einstein to Hawking (American Institute of Physics Melville, NY, 1996)

In Our Time is a BBC Studios Audio Production


For anyone with a restless mind, the weekly In Our Time podcast from BBC Radio 4 offers a deep and engaging conversation across the vast terrain of human thought and experience. Host Misha Glenny guides a panel of distinguished academics, not in lecture format, but through a lively, accessible discussion where ideas genuinely collide and unfold. You might find yourself immersed in the complex legacy of a figure like Napoleon one week, and the next be untangling the scientific principles of photosynthesis or the philosophical arguments of the Enlightenment. The scope is deliberately broad, covering history, religion, culture, science, and philosophy, because understanding one often requires context from another. What you hear is the genuine process of exploration-the questions, the debates, and the connections made in real time by leading experts. It’s the kind of podcast that doesn’t just recount the Sack of Rome or the intricacies of Russian court politics, but examines why these moments mattered and how their echoes are still felt. The result is a consistently stimulating hour that treats listeners as curious equals, offering the intellectual satisfaction of following a great conversation to its illuminating conclusion.
Author: Language: English Episodes: 100

In Our Time
Podcast Episodes
Monet in England [not-audio_url] [/not-audio_url]

Duration: 50:48
Melvyn Bragg and guests discuss the work of the great French Impressionist Claude Monet (1840-1926) in London, initially in 1870 and then from 1899. He spent his first visit in poverty, escaping from war in France, while…
Karma [not-audio_url] [/not-audio_url]

Duration: 50:55
Melvyn Bragg and guests discuss the doctrine of Karma as developed initially among Hindus, Jains and Buddhists in India from the first millennium BCE. Common to each is an idea, broadly, that you reap what you sow: how y…
Fielding's Tom Jones [not-audio_url] [/not-audio_url]

Duration: 54:47
Melvyn Bragg and guests discuss "The History of Tom Jones, A Foundling" (1749) by Henry Fielding (1707-1754), one of the most influential of the early English novels and a favourite of Dickens. Coleridge wrote that it ha…
The Orkneyinga Saga [not-audio_url] [/not-audio_url]

Duration: 51:02
Melvyn Bragg and guests discuss the Saga of the Earls of Orkney, as told in the 13th Century by an unknown Icelander. This was the story of arguably the most important, strategically, of all the islands in the British Vi…
Marsilius of Padua [not-audio_url] [/not-audio_url]

Duration: 56:44
Melvyn Bragg and guests discuss one of the canonical figures from the history of political thought. Marsilius of Padua (c1275 to c1343) wrote 'Defensor Pacis' (The Defender of the Peace) around 1324 when the Papacy, the…
Empress Dowager Cixi [not-audio_url] [/not-audio_url]

Duration: 50:02
Melvyn Bragg and guests discuss the woman who, for almost fifty years, was the most powerful figure in the Chinese court. Cixi (1835-1908) started out at court as one of the Emperor's many concubines, yet was the only on…
Philippa Foot [not-audio_url] [/not-audio_url]

Duration: 58:12
Melvyn Bragg and guests discuss one of the most significant philosophers of the twentieth century, Philippa Foot (1920 - 2010). Her central question was, “Why be moral?” Drawing on Aristotle and Aquinas, Foot spent her l…
Sir Thomas Wyatt [not-audio_url] [/not-audio_url]

Duration: 58:01
Melvyn Bragg and guests discuss 'the greatest poet of his age', Thomas Wyatt (1503 -1542), who brought the poetry of the Italian Renaissance into the English Tudor world, especially the sonnet, so preparing the way for S…
Mercury [not-audio_url] [/not-audio_url]

Duration: 53:49
Melvyn Bragg and guests discuss the planet which is closest to our Sun. We see it as an evening or a morning star, close to where the Sun has just set or is about to rise, and observations of Mercury helped Copernicus un…
Bertolt Brecht [not-audio_url] [/not-audio_url]

Duration: 59:34
Melvyn Bragg and guests discuss one of the greatest European playwrights of the twentieth century. The aim of Bertolt Brecht (1898-1956) was to make the familiar ‘strange’: with plays such as Mother Courage and The Cauca…