Portrait of Lord Melvyn Bragg, host of In Our Time

Astronomy

26 episodes

  1. Al-Biruni

    Melvyn Bragg and guests discuss the Central Asian polymath al-Biruni and his 11th-century book India, one of the first scholarly works about the country.

    10 June 2010

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    Featuring: James Montgomery, Hugh Kennedy, Amira Bennison

     
  2. Al-Kindi

    Melvyn Bragg and his guests discuss the life and work of Al-Kindi, often described as the first philosopher in the Arabic tradition.

    28 June 2012

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    Featuring: Hugh Kennedy, James Montgomery, Amira Bennison

     
  3. Angkor Wat

    Melvyn Bragg and guests discuss the astonishing and massive Cambodian temple commissioned by Suryavarman II in the 12th century, a centre for Hinduism, Buddhism and Animism.

    23 June 2022

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    Featuring: Piphal Heng, Ashley Thompson, Simon Warrack

     
  4. Asteroids

    Melvyn Bragg discusses asteroids, once regarded as “the vermin of the solar system” but now viewed as key to our understanding of the beginning of time.

    3 November 2005

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    Featuring: Monica Grady, Carolin Crawford, John Zarnecki

     
  5. Black Holes

    Melvyn Bragg discusses Black Holes, the dead collapsed ghosts of massive stars.

    12 April 2001

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    Featuring: Martin Rees, Jocelyn Bell Burnell, Martin Ward

     
  6. Carl Friedrich Gauss

    Melvyn Bragg and guests discuss the ideas of Gauss, 'prince of mathematicians', including those on number theory, geometry, probability theory, astronomy and electromagnetism.

    30 November 2017

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    Featuring: Marcus du Sautoy, Colva Roney-Dougal, Nick Evans

     
  7. Comets

    Melvyn Bragg and his guests discuss comets, the 'dirty snowballs' of the solar system which orbit the sun.

    17 January 2013

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    Featuring: Monica Grady, Paul Murdin, Don Pollacco

     
  8. Cosmic rays

    Melvyn Bragg and his guests discuss cosmic rays, the mysterious high-energy particles that constantly bombard Earth.

    16 May 2013

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    Featuring: Carolin Crawford, Alan Watson, Tim Greenshaw

     
  9. Dark Energy

    Melvyn Bragg discusses the recently discovered, and mysteriously named, 'dark energy' which may make up 70% of the universe.

    17 March 2005

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    Featuring: Martin Rees, Carolin Crawford, Roger Penrose

     
  10. Dark matter

    Melvyn Bragg and his guests discuss dark matter, the mysterious and invisible substance that is believed to make up most of the universe.

    12 March 2015

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    Featuring: Carolin Crawford, Gresham Professor of Astronomy Carlos Frenk, Anne Green

     
  11. Eclipses

    Melvyn Bragg and guests discuss the progress in our understanding of eclipses from the ancient world onwards and how their predictability illuminates historical records and myths.

    31 December 2020

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    Featuring: Carolin Crawford, Frank Close, Lucie Green

     
  12. Exoplanets

    Melvyn Bragg and guests discuss exoplanets, planets detected outside our solar system.

    3 October 2013

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    Featuring: Carolin Crawford, Don Pollacco, Suzanne Aigrain

     
  13. Extra Terrestrials

    Melvyn Bragg discusses whether there are reasons to suppose that some form of life might exist beyond, or even within, our solar system and what our chances of ever discovering such a planet are.

    4 April 2002

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    Featuring: Simon Goodwin, Heather Couper, Ian Stewart

     
  14. Galaxies

    Melvyn Bragg and guests discuss the galaxies; spread out across the void of space like spun sugar, but harbouring in their centres super-massive black holes.

    29 June 2006

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    Featuring: John Gribbin, Carolin Crawford, Robert Kennicutt

     
  15. Grand Unified Theory

    Melvyn Bragg examines 20th century’s physics’ search for one theory that can explain the behaviour of the smallest particle as well as the movements of the largest planets in the Universe.

    24 February 2000

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    Featuring: Brian Greene, Martin Rees

     
  16. Gravitational Waves

    Melvyn Bragg and guests discuss Gravitational Waves, mysterious phenomena that ripple the fabric of space-time.

    17 May 2007

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    Featuring: Jim Al-Khalili, Carolin Crawford, Sheila Rowan

     
  17. The Age of the Universe

    Melvyn Bragg and his guests discuss a question which has obsessed cosmologists for millennia: how old is the Universe?

    3 March 2011

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    Featuring: Martin Rees, Carolin Crawford, Carlos Frenk

     
  18. The Antikythera Mechanism

    Melvyn Bragg and guests discuss the 2,000-year-old Greek astronomical computer, one of the most important discoveries in marine archaeology.

    14 November 2024

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    Featuring: Mike Edmunds, Jo Marchant, Liba Taub

     
  19. The Death of Stars

    Melvyn Bragg and guests discuss how so much in the Universe, and much of our understanding of it, depends on changes in stars as they die after millions or billions of stable years

    9 June 2022

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    Featuring: Martin Rees, Carolin Crawford, Mark Sullivan

     
  20. The Habitability of Planets

    Melvyn Bragg and guests discuss some of the ideas on the chemistry that was needed for life to begin and thrive on Earth and the implications for where we may find life elsewhere.

    12 December 2024

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    Featuring: Jayne Birkby, Saidul Islam, Oliver Shorttle

     
  21. The Life of Stars

    Melvyn Bragg discusses the life cycle of stars. They are born among vast swirls of gas and dust and they die in stunning explosions.

    27 March 2003

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    Featuring: Paul Murdin, Janna Levin, Phil Charles

     
  22. The Multiverse

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

    21 February 2008

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    Featuring: Martin Rees, Fay Dowker, Bernard Carr

     
  23. The Planets

    Melvyn Bragg discusses our knowledge of the planets in both our and other solar systems. What causes them to form and what is the likelihood of there being another with properties similar to Earth’s?

    27 May 2004

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    Featuring: Paul Murdin, Hugh Jones, Carolin Crawford

     
  24. The Universe's Origins

    Melvyn Bragg examines the way thinking about the origins of the universe changed in the 20th century. Are we any closer to knowing whether other worlds exist and how our planet came into being?

    20 May 1999

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    Featuring: Martin Rees, Paul Davies

     
  25. The Universe's Shape

    Melvyn Bragg discusses shape, size and topology of the universe and examines theories about its expansion. If it is already infinite, how can it be getting any bigger? And is there really only one?

    7 February 2002

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    Featuring: Martin Rees, Julian Barbour, Janna Levin

     
  26. William and Caroline Herschel

    Melvyn Bragg and guests discuss the pioneering brother and sister who, between them, discovered Uranus, comets, double stars and infrared light at the end of the 18th century.

    11 November 2021

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    Featuring: Monica Grady, Carolin Crawford, Jim Bennett