Science Weekly

By: The Guardian
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  • Summary

  • Twice a week, the Guardian brings you the latest science and environment news
    © 2024 Guardian News & Media Limited or its affiliated companies. All rights reserved.
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Episodes
  • Revisited: are the world’s oldest people really that old?

    Revisited: are the world’s oldest people really that old?
    Dec 24 2024
    In this episode from September, Madeleine Finlay speaks to Dr Saul Newman, an interdisciplinary researcher at University College London and the University of Oxford, who has recently won an Ig Nobel prize – given to scientific research that ‘first makes people laugh, and then makes them think’ – for his work showing that many claims of people living extraordinarily long lives come from places with short lifespans, no birth certificates, and where clerical errors and pension fraud abound. Help support our independent journalism at theguardian.com/sciencepod
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    17 mins
  • ‘Soft and calorie dense’: Chris van Tulleken on how ultra-processed foods keep us hooked

    ‘Soft and calorie dense’: Chris van Tulleken on how ultra-processed foods keep us hooked
    Dec 19 2024
    Dr Chris van Tulleken has been at the forefront of the campaign to change our food system and better regulate the sale of ultra-processed foods (UPF). This year he will be giving the Royal Institution Christmas lectures, Britain’s most prestigious public science lectures, in which he’ll be investigating how food has fundamentally shaped human evolution, the importance of our microbiome – as the extra ‘organ’ we didn’t know we had – and how we can all eat better in future, for the sake of our own health and the health of the planet. Nicola Davis sat down with Van Tulleken to discuss the lectures, the challenge of understanding the impact of UPFs on our health, and his top tip for Christmas dinner. Madeleine Finlay hears from them both in this Christmas special edition of Science Weekly. Help support our independent journalism at theguardian.com/sciencepod
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    18 mins
  • Is our model of the universe wrong?

    Is our model of the universe wrong?
    Dec 17 2024
    For the past 10 years cosmologists have been left scratching their heads over why two methods for measuring the universe’s rate of expansion provide totally different results. There are two possible solutions to the puzzle, known as the Hubble tension: either something is wrong with the measurements or something is wrong with our model of the universe. It was hoped that observations from the James Webb space telescope might shed some light on the problem, but instead results published last week have continued to muddy the waters. To understand why the expansion rate of the universe remains a mystery, and what might be needed to finally pin it down, Madeleine Finlay speaks to Catherine Heymans, the astronomer royal for Scotland and a professor of astrophysics at the University of Edinburgh. Help support our independent journalism at theguardian.com/sciencepod
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    18 mins

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science explained

making science accessible, understandable and interesting to the average person. great knowledgable guest speakers from reputable backgrounds

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