Episodes

  • The Mapmaker's Impossible Ocean

    The Mapmaker's Impossible Ocean
    May 12 2026
    In 1977, geologist Marie Tharp hand-drew the first complete map of the ocean floor—and accidentally revealed a hidden world that rewrote our understanding of Earth itself. Her meticulous sketches uncovered the largest mountain range on our planet, sparked the plate tectonics revolution, and showed us that the ground beneath our feet is far more restless than we ever imagined. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    14 mins
  • The Woman Who Touched the Stars

    The Woman Who Touched the Stars
    May 11 2026
    Cecilia Payne's revolutionary 1925 dissertation proved that stars are made mostly of hydrogen—but her male advisors forced her to call her own discovery 'spurious.' Decades later, it became the foundation of modern astrophysics. This is the story of how a 25-year-old woman solved one of the universe's biggest mysteries, only to be told she was wrong about her own groundbreaking work. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    14 mins
  • The Mold That Saved a Billion Lives

    The Mold That Saved a Billion Lives
    May 10 2026
    In 1928, Alexander Fleming returned from vacation to find his bacterial cultures contaminated by a peculiar mold—and nearly threw them away. That moment of scientific curiosity over annoyance led to penicillin, the antibiotic that would revolutionize medicine and turn infections from death sentences into minor inconveniences. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    20 mins
  • The Radio That Heard the Universe's Birth Cry

    The Radio That Heard the Universe's Birth Cry
    May 9 2026
    In 1965, two Bell Labs engineers were plagued by an annoying hiss in their radio antenna that threatened to derail their satellite communication project. That 'noise' turned out to be the cosmic microwave background radiation—the afterglow of the Big Bang itself, still echoing through space 13.8 billion years later. Sometimes the most groundbreaking discoveries come disguised as problems you're desperately trying to solve. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    12 mins
  • The Molecule That Shouldn't Exist

    The Molecule That Shouldn't Exist
    May 8 2026
    In 1985, three scientists accidentally created a soccer ball-shaped molecule that defied everything chemistry textbooks said about carbon. The discovery of buckminsterfullerene—or 'buckyballs'—happened during what was supposed to be a completely different experiment about space dust, launching the entire field of nanotechnology and earning a Nobel Prize along the way. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    13 mins
  • The Sound of Stars Colliding

    The Sound of Stars Colliding
    May 7 2026
    In 2015, a ripple in spacetime arrived at Earth after traveling for 1.3 billion years—carrying the death song of two black holes locked in their final dance. This is the story of how humanity learned to hear the universe's most violent whispers, and the scientists who spent decades building instruments sensitive enough to detect a distortion smaller than 1/10,000th the width of a proton. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    15 mins
  • The Molecule That Forgot to Die

    The Molecule That Forgot to Die
    May 6 2026
    In 1951, Henrietta Lacks died of cervical cancer, but her cells achieved something no human cells had ever done before—they became immortal. The accidental discovery of HeLa cells revolutionized medicine, enabling breakthroughs from the polio vaccine to cancer treatments, while raising profound questions about ethics, consent, and what it means to be human. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    21 mins
  • The Sound of Invisible Fire

    The Sound of Invisible Fire
    May 5 2026
    In 1965, two Bell Labs engineers were trying to eliminate mysterious static from their radio antenna when they accidentally detected the afterglow of the Big Bang itself. This is the story of how cosmic background radiation was discovered by accident, confirmed our understanding of the universe's origin, and why we can still 'hear' the echo of creation in every direction we look. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com for information about our collection and use of personal data for advertising.
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    14 mins