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The Multiverse

Duration:
45 minutes
First broadcast:
Thursday 21 February 2008

Melvyn Bragg and guests will be leaving the studio, the planet and indeed, the universe to take a tour of the Multiverse.

If you look up the word ‘universe’ in the Oxford English Dictionary you will find the following definition:
“The whole of created or existing things regarded collectively; all things (including the earth, the heavens, and all the phenomena of space) considered as constituting a systematic whole.”

That sounds fairly comprehensive as a description of everything, but for an increasing number of physicists and cosmologists the universe is not enough. They talk of a multiverse – literally many universes – to explain aspects of their theory, the character of the universe and the riddle of our existence within it. Indeed, compared to the scope and complexity of the multiverse, the whole of our known reality may be as a speck of sand upon a beach.

The idea of a multiverse is still controversial, some argue that it isn’t even science, because it is based on an idea that we may never be able to prove or even see. But what might a multiverse be like, why are physicists and cosmologists increasingly interested in it and is it really scientific to discuss the existence of universes we may never know anything

With Martin Rees, President of the Royal Society and Professor of Cosmology and Astrophysics at the University of Cambridge; Fay Dowker, Reader in Theoretical Physics at Imperial College; Bernard Carr, Professor of Mathematics and Astronomy at Queen Mary, University of London

  • Further Reading

    Universe or Multiverse? Edited by Bernard Carr (CUP, 2007)

    The Goldilocks Enigma: Why is the Universe Just Right for Life? by Paul Davies (Allen Lane, 2006)

    Many Worlds in One: The Search for Other Universes by Alex Vilenkin (Hill and Wang, 2006)

    Science and Ultimate Reality: From Quantum to Cosmos, J. D. Barrow, P.C.W. Davies, & C.L. Harper eds. (Cambridge University Press, 2003)

    Our Cosmic Habitat by Martin Rees (Weidenfeld & Nicolson, 2002)

    Before the Beginning: Our Universe and Others by Martin Rees (Free Press; New Ed edition, 2002)

    The Fabric of Reality: The Science of Parallel Universes by David Deutsch (Penguin Books Australia, 1998)

    Parallel Worlds: The Science of Alternative Universes and Our Future in the Cosmos by Michio Kaku (Penguin Books, 2006)

    The Cosmic Landscape: String Theory and the Illusion of Intelligent Design by Leonard Susskind (December, 2006)

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