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In Our Time: Science

by BBC Radio 4
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DateApple Podcasts
Oct 3#168

About the show

Scientific principles, theory, and the role of key figures in the advancement of science.

Latest episodes

  • The Mariana Trench

    February 19, 2026 · 58 min

    Misha Glenny and guests discuss one of the wonders of the natural world. In 1875 in the western Pacific, the crew of HMS Challenger discovered the Mariana Trench which turned out to be deeper than Everest is high, by two kilometres…

  • The Evolution of Lungs

    July 10, 2025 · 48 min

    Melvyn Bragg and guests discuss the evolution of lungs and of the first breaths, which can be traced back 400 million years to when animal life spread from rock pools and swamps onto land, as some fish found an evolutionary advantage in…

  • Lise Meitner

    June 5, 2025 · 57 min

    Melvyn Bragg and guests discuss the decisive role of one of the great 20th Century physicists in solving the question of nuclear fission. It is said that Meitner (1878-1968) made this breakthrough over Christmas 1938 while she was sitting…

  • Pollination

    April 3, 2025 · 50 min

    Since plants have to mate and produce offspring while rooted to the spot, they have to be pollinated – by wind, water, or animals – most commonly insects. They use a surprising array of tricks to attract pollinators: striking colours…

  • Slime Moulds

    January 30, 2025 · 52 min

    Melvyn Bragg and guests discuss slime mould, a basic organism that grows on logs, cowpats and compost heaps. Scientists have found difficult to categorise slime mould: in 1868, the biologist Thomas Huxley asked: ‘Is this a plant, or is it…

  • The Habitability of Planets

    January 9, 2025 · 53 min

    Melvyn Bragg and guests discuss some of the great unanswered questions in science: how and where did life on Earth begin, what did it need to thrive and could it be found elsewhere? Charles Darwin speculated that we might look for the…

  • The Antikythera Mechanism

    December 12, 2024 · 51 min

    Melvyn Bragg and guests discuss the 2000-year-old device which transformed our understanding of astronomy in ancient Greece. In 1900 a group of sponge divers found the wreck of a ship off the coast of the Greek island of Antikythera. Among…

  • Wormholes

    October 24, 2024 · 1 hr 1 min

    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…